Journal of Entomology and Zoology: Volume 6, Number 4, December 1914, by Pomona College Department of Zoology, a Project Gutenberg eBook.

Entered at Claremont, Cal., Post-Office Oct. 1, 1910, as second-class matter, under Act of Congress of March 3, 1879

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PUBLISHED QUARTERLY BY THE
DEPARTMENT OF ZOOLOGY OF POMONA COLLEGE
CLAREMONT, CALIFORNIA, U. S. A.

Acarina, 55.
Achorutes, 165.
californica, 165.
citri, 166.
Actitis macularius, 237.
Ægialitis novisa, 237.
semipalmata, 237.
Aglaophenia inconspictus, 243.
Aglaophenia struthionides, 243.
Alexander, C. P., 12, 105.
Ammodramus savannarum bimaculatus, 238.
Anisomera longicornis, 21.
Antenella avalonia, 243.
Aplonyx sarcobati, 93.
Aphoruridæ, 168.
Aphorura, 170.
lutea, 170.
montis, 171.
Arrhenica spinosa, 27.
Asterina miniata, 211.
Astroglinus tristis salicamans, 238.
Asteropecten erinoceus, 211.
Atemnus hirsutus, 203, 195.

Bacon, G. A., 45, 84, 137.
Balanus nubilus, 213.
tintinnabulum californicus, 212.
Banks, Nathan, 55.
Barnacles, 212.
Bdellidæ, 55.
Bdella utilis, 55.
Bean, A. M., 242.
Birds, Laguna Beach, 235.
Buteo borealis colurus, 237.

Caligonus terminalis, 57.
Canestrinidæ, 61.
Canestrinia blattophaga, 61.
Campanulariidæ, 244.
Campodea montis, 86.
kelloggi, 91.
folsomi, 91.
Caprellidæ, 222.
æquilibra, 224.
geometrica, 222.
septentrionalis, 223.
Catoptrophorus semipalmatus inornatus, 237.
Centrochares horrificus, 69.
Centrotoscelus, 72.
typus, 73.
Ceryle alcyon, 238.
Chelanops acuminatus, 193.
lagunæ, 42, 193.
paludis, 81, 193.
pallipes, 193.
serratus, 193.
Chelifer cancroides, 187.
fuscipes, 188.
scabrisulus, 192.
Cheyletidæ, 56.
Cheyletus cocciphilus, 56.
Chloræmidæ, 219.
Cinura, 86.
Cirratulidæ, 219.
Cirratulus robustus, 219.
spirobranchus, 219.
Clymenella rubrocincta, 219.
Coccidæ of Japan, 1, 48, 133.
Cockerell, T. D. A., 240.
Collembola, 137.
Corpuscles, birds, 221.
Corvus corax sinuatus, 238.
Crane flies, 12, 105.
Cryptaspidia pubera, 69.
tagalica, 69.
Cunaxa aramata, 55.
Cyphodeirus, 162.
albinus, 162.

Diptera, 12, 105.
Disparipes apicola, 61.
Drepanura, 154.
californica, 155.

Eggs, invertebrates, 215.
Entomobrya, 155.
binoculata, 157.
chitellaria, 158.
laguna, 160.
multifasciata, 158.
sexoculata, 156.
Entomobryidæ.
Entrychocampa wilsoni, 92.
Eriocera, 12.
fultonensis, 30.
longicornis, 21.
macquart, 12.
spinosa, 27.
Eriococcus festucæ, 2.
Essig, E. O., 76.
Eunicidæ, 218.
Euphrosyne aurantiaca, 218.
Euphrosynidæ, 218.
Eusmatura pamoicensis, 236.
Evalljapyx propinquus, 92.
Ewing, H. E., 121.

Felt, E. P., 93.
Fish, Laguna Beach, 233.
Funkhouser, W. D., 67.

Gardner, L. L., 235.
Gardner, R. E., 86.
Gargara, 69.
luteipennis, 71.
nigro-fasciata, 70.
nitidipennis, 71.
pulchripennis, 70.
tuberculata, 70.
varicolor, 69.
Gavia, 235.
immer, 235.
pacifica, 236.
Glyceridæ, 219.

Haliætus leucocephalus leucocephalus, 237.
Halosydna, 217.
californica, 217.
insignis, 217.
Hamilton, W. F., 217.
Harmothoe hirsuta, 218.
Hemipodia borealis, 219.
Hermellidæ, 219.
Heteractitis incanus, 237.
Hilton, W. A., 38, 95, 134, 198.
Himantopus mexicanus, 236.
Hirundo erythrogastra, 238.
Hughes, S. P., 212.
Hydroids, 242.

Ideobisium threveneti, 196.
Ideoroncus obscurus, 196.
Isotoma, 145.
aquæ, 147.
aspera, 149.
besselsii, 148.
bidenticula, 147.
catena, 152.
minima, 149.
palustris, 153.
viridis, 150.

Japan, Coccidæ of, 1.
Japygidæ, 92.

Kermes branigani, 100.
mirabilis, 133.
sasseri, 48.
King, Geo. B., 48, 100, 133.
Kuwana, S. I., 1.

La Follette, R., 204, 222.
Laguna Beach, 245.
Larus heermanni, 236.
Lecanium pseudomagnoliarum, 7.
Lecanium magnoliarum, 7.
Lecythorhynchus, 134.
Lepas anatifera, 214.
fasciculatus, 214.
Lepidasthenia gigas, 217.
Lepismidæ, 92.
Leptrocentrus reponens, 69.
Lichti, P. A., 215.
Linckia columbiæ, 209.
Liogma nodicornis, 105.
Lloyd, J. T., 12.
Lumbriconereidæ, 218.
Lumbriconereis erecta, 218.
McFadden, E. T., 50.
Macrorhamphus griseus scolopaceus, 236.
Macrocheles sublaevis, 59.
Map—Claremont-Laguna, 144.
Melanerpes formicivorus bairdi, 238.
Membracidæ, 57.
Mergus serrator, 236.
Mitella polymerus, 213.
Mola mola, 233.
Moldanidæ, 219.
Moles, M. L., 42, 81, 187.
Mycochanes richardsoni richardsoni, 238.
Neanura, 168.
gigantea, 45, 95.
Nebalia, 204.
Nematoda, 220.
Nemertinea, 220.
Nereidæ, 218.
Nereis agassizi, 218.
virens, 218.
Nervous system, 38, 95, 134, 198.

Obisium macilentum, 195.
Ordemia deglandi, 236.
perspicillata, 236.
Ophiomegistus, 58.
luzonensis, 58.
Orthasterias gonolena, 209.
Otus asio bendirei, 237.

Pandion haliætus carolinensis, 237.
Pennariidæ, 242.
Parasitidæ, 58.
Parasitus inaegualis, 59.
Perrisia stanleyæ, 241.
Phenacoccus azaleæ, 1.
Phyllodocidæ, 218.
Pisaster capitatus, 209.
Pisaster ochraceus, 209.
Pionosyllis elongatus, 217.
Plumulariidæ, 243.
Plumularia lagenifera, 243.
setacea, 243.
Poduridæ, 164.
Polyaspis lamellipes, 58.
Polychaeta, 217.
Polynoidæ, 217.
Popirius, 144.
Porichthys notatus, 233.
Protodiaspis, 76.
agrifolia, 76.
Pseudoscorpion, 42, 81, 187.
Pseudosira, 164.
domestica, 164.
Pulvinaria, 3.
citricola, 3.
idesiæ, 6.
okilsuensis, 5.
photiniac, 4.
Pycnogonida, 134.
Pyrgonota bifoliata, 67.

Rivers, J. J., 98.
Rhyncholophidæ, 56.
Rhyncholophus moestus, 56.

Sabellidæ, 219.
Sabellaria californica, 220.
Schmardanella californica, 219.
Sea urchins, 234.
Serpulidæ, 219.
Sertularia fuscata, 243.
tricuspidata, 243.
Sertulariidæ, 243.
Sinella, 145.
curviseta, 145.
Sipylus nodipennis, 72.
Smynthuridæ, 143.
Smynthurus, 144.
Spider, 121.
Starfish, 209.
Syllidæ, 217.

Tarsonemidæ, 60.
Tarsonemus approximatus, 60.
assimilis, 60.
Terrebellidæ, 219.
Tetranychidæ, 57.
Tetranychus simplex, 57.
telarius, 121.
Tipulidæ, 12, 105.
Tomocerus, 161.
bidentatus, 162.
vulgaris, 161.
Tricentrus, 67.
convergens, 68.
fairmairei, 67.
pilinervosus, 68.
Tubularia, 242.
Tullbergia, 84, 171.
collis, 172.
Turbellaria, 220.

Wang, Chi Tsau, 221.
Worms, 217.
Xenylla, 38, 166.
collis, 167.
paludis, 168.
Xylococcus napiformis, 1.

Many individuals may be found in a certain vicinity. In the valleys where oak and sycamore trees grow abundantly there can be found as many as seventy-five on the lower trunk of one tree. They are all of one or two species. In all the student collections that have been carried on here in college for the last ten years there have never been more than four or five species collected. It was only through special collection that the other species were found. Very few were found under stones, where they are so often spoken of as living, and few were found among fallen leaves. Some were collected in rotten poplar and pine logs. In the marshy ground at Chino they were found under leaves and stones and were very abundant on the poplar trees.

The distribution of the pseudoscorpions extends from an altitude of 5000 down to within ten feet of the ocean.

Concerning their habits of living little can be found. Many small spiders were found in their claws, also the small mites that live underneath the bark of trees. Several experiments were tried with some that were brought into the laboratory. The results were:

2. They could not live in a glass dish if water was not placed in it somewhere. If water was left out, they would dry up within twenty-four hours.

Description: Length—including mandibles, 3 mm.; pedipalps, 4 mm.; claw, 1.5 mm. Color—Pedipalps, dark reddish brown; cephalothorax, dark reddish brown; abdomen, lighter than the palps and cephalothorax; legs, light yellow brown.

Cephalothorax: Evenly rounded in front; one distinct median suture, two distinct eye spots.

Abdomen: Twice as long as it is broad and divided into eleven distinct sutures. All of the scuta about the same size except the last one, which is a great deal shorter and broader than the rest. Each scutum is provided with two strong, spiny hairs on the outer edge.

The whole body is heavily granulated, the cephalothorax having knob-like protuberances all along the edges.

Pedipalps: Larger than the whole animal. Coxa, smooth; trochanter with large protuberance ending in a heavy spine on the outer edge. Femur longer than cephalothorax, pedicellate. Tibia, concave on inner edge, pedicellate, shorter than femur. Trochanter, femur and tibia strongly granulated and sparsely covered with almost clavate hairs. Claw of good size, finger a little shorter than the hand. Hand evenly convex on outer and inner edges. Finger slightly curved, smooth, with many long simple tactile hairs.

Mandibles: Small, fixed finger provided with many small teeth. Serrula attached throughout length of moveable finger. Spinnerets long and transparent. Mandibles are provided with five or more heavy long hairs.

Legs: First two with trochantins, claws simple, legs covered with almost clavate hairs.

Habitat: Barns or buildings of this community; also found in some of the common trees, such as the oak and sycamore. This was collected in Whittier, Claremont, Lytle Creek and San Antonio canyons, and the smaller canyons near Claremont.

Description: Length of animal, including mandibles, 4 mm.; pedipalps, 5.5 mm.; claw, 2 mm. Color—Pedipalps, reddish brown; cephalothorax, reddish brown; abdomen and legs, light brown.

Cephalothorax: As long as it is broad. Upper edge almost truncate, yet rounded; sides evenly convex, lower edge almost straight. Cephalothorax finely granulate and heavy, simple spine-like hairs placed in a definite order. One distinct median suture. Two eye spots.

Abdomen: Half as broad as it is long and divided into twelve scuta. The outer edges of each scutum are prolonged into curved hooked spines. The first scutum is the shortest and broadest, and has the heavier spine or hook, while the last two segments often lack the hook. The abdomen is finely granulate and at the lower edge of each scutum there are eight heavy, short, simple hairs.

Pedipalps: Longer than body, coxa smooth, trochanter with large protuberance ending in a strong spine on outer side; femur longer than cephalothorax, slightly concave on inner edge, convex on outer edge. Tibia pedicellate, shorter than femur. The trochanter, femur and tibia are all granulate and sparsely covered with short, simple hairs. Claw large, hand broad, smoothly convex on both sides; finger as long as the hand and slightly curved. It is also provided with long, tactile hairs.

Mandibles: Small for size of animal; fixed finger provided with small teeth. Serrula attached throughout the length of moveable finger. Flagellum divided into small parts. Spinnerets small and transparent.

Legs: First three legs with trochantins, claws simple, legs covered with simple hairs.

Habitat: Sycamore canyons, Laguna Beach, Whittier Hills, Cucamonga canyon, Arrowhead canyon, Lytle Creek canyon, Evey's« 192 » canyon, San Antonio canyon, and from oak and sycamore trees around the college campus.

I will not describe the details of this species, because it is so much like the last described, differing from C. fuscipes by not having the prolonged hooks like spines, on the outer edges of each abdominal scutum. The color differs from the other two. The abdomen and legs are light brown. The cephalothorax and palps are a little darker yellowish brown.

The habitat of this species was the same as that of C. fuscipes. When collecting, they were generally found together.

Description: Length of body, including mandibles, 5 mm; abdomen, 4 mm.; pedipalps, 4.5 mm.; claw, 2 mm. Color—Cephalothorax, light reddish brown, pedipalps darker, abdomen yellow with dark brown spots, legs pale yellow.

Cephalothorax: Very short for length of body. Front margin truncate, sides almost straight, lower margin slightly convex, smooth and shiny and provided with many short hairs.

Abdomen: Four times as long as it is wide; sub-parallel sides. Each scutum with a dark spot on each side and each dark spot surrounded by long, simple hairs arranged in a definite order.

Pedipalps: Nearly as long as the body, coxa smooth, trochanter stout and short; femur pedicellate, broadest part being near base, as long as the cephalothorax, inner edge slightly concave, outer edge strongly convex; tibia shorter than femur, pedicellate, strongly convex on inner edge, on outer edge slightly concave near base, but strongly convex beyond.

Claw: Large, finger very stout and curved, shorter than the hand. Hand very broad, very convex on outer edge, only slightly so on inner edge. The trochanter, femur and tibia are covered with stout simple hairs of varying length.

Mandibles: Small and short, serrula attached throughout length of finger, spinnerets small and transparent.

Habitat: This has been reported from Palm Springs, but one specimen was found within our area at Brown's Flats, at about four thousand feet elevation, in an old pine log.

Similar to C. dorsalis, but fingers longer than hand and very slender; tibia also slender, less convex on the inner side, hard parts with clavate hairs. Three millimeters long. (From Banks.)

Habitat: Los Angeles and vicinity, but has not yet been found in our immediate region.

Cephalothorax and palpi reddish brown, with short but not clavate hairs; no eye spots; pedipalps rather short, hand evenly convex on inner side at base, fingers much shorter than the hand and quite stout. 3 mm. long. (From Banks.)

It differs chiefly from C. dorsalis Banks by having two eye spots. It is a smaller species. This small species was found in Sycamore canyon, near Laguna Beach.

Description: Length—Pedipalps, 3 mm. Impossible to take measurements of other parts, for slide was so poorly made, but the body was small. Color—Cephalothorax and pedipalps, strong yellow brown; legs and abdomen, light yellow.

Cephalothorax: As long as it is broad, sides evenly convex, upper margin straight, one distinct median suture; no eye spots; surface of cephalothorax very granular.

Abdomen: Badly curled up; scuta entirely covered with short almost clavate hairs.

The naming of this species is based on the short "saw-like" hairs that are all over the body. They are not globular on the end, as the clavate hairs, but have "saw-like" edge.

Palps: Short and stout, coxa smooth, trochanter as usual, femur shorter than cephalothorax; pedicellate, inner margin almost straight at base, then suddenly concave to tip, outer margin evenly but not strongly convex; tibia broad, pedicellate, suddenly enlarging on inner side near base, outer margin evenly convex. Trochanter, femur, tibia strongly granulate and sparsely covered with these "saw-like" hairs.

Hand: Broad as it is long, greatly swollen on inner margin near base; fingers slightly curved and as long as the hand.

Mandibles: Small; spinnerets small and transparent; serrula attached throughout the length of the moveable finger.

This specimen was found on the window pane of the Pomona College greenhouse. A fly (Musca domestica) lit on the pane and the pseudoscorpion caught its legs and clung while the fly crawled about. This is the only one of its kind that has been found.

Described by Banks in this number of the Journal. Only one specimen of this species was taken. This is the species found nearest the ocean. The broad hand is quite evident. Found ten feet from the ocean, among stones, at Laguna Beach.

Description: Pale yellowish brown, legs paler; hard part shining; cephalothorax one-fourth longer than broad. Sides parallel; mandibles about one-half the length of the cephalothorax; pedipalps very long and slender, with long, fine, scattered hairs. Femur as long as the cephalothorax. Fingers longer than hand.

Description: Length of animal, including mandibles, 4 mm.; length of palps, 3.5 mm.; length of abdomen, 3 mm.; length of claw, 1.5 mm. Color—Cephalothorax and palps, dark reddish brown; abdomen, lighter than cephalothorax; legs, pale yellow.

Cephalothorax: As long as it is broad, upper margin truncate, sides nearly straight, lower margin straight; no suture; four distinct eye spots; eyes on each side almost touch each other.

Palps: Coxa smooth; trochanter small; femur long, outer edge almost straight, inner edge slightly convex; tibia short and stout, pedicellate, convex on inner and outer surface.

Claw: Not large; finger as long as hand and not curved very much; hand, broad, evenly convex on inner and outer edges.

Legs: Lack trochantins, III and IV stouter than I and II; mandibles large; serrula not attached throughout length of moveable finger; spinnerets long and transparent.

Description: Length of animal, including mandibles, 3 mm.; length of pedipalps, 3 mm. Color—Cephalothorax and pedipalps dark yellow brown; abdomen and legs very light yellow.

Cephalothorax: A little longer than broad; front margin slightly truncate, rounded; sides so slightly convex as to be almost straight; lower margin slightly recurved; no transverse sutures; one pair of eyes.

Abdomen: Elongate and slender; scuta entire; both abdomen and cephalothorax with a few simple scattered hairs.

Palps: Long and slender; coxa smooth; trochanter lacks large protuberance of many of the Cheliferidæ; femur hardly as long as cephalothorax, very slender and not pedicellate; tibia shorter and broader than femur, pedicellate, convex on inner edge, only slightly so on outer edge; trochanter, femur, and tibia covered with short, stout simple hairs; claw long and slender; finger little longer than hand, and only slightly curved; hand twice as long as broad; hand « 197 » and claw covered with long, simple hairs; mandibles large, serrula attached only at base; spinnerets long and transparent.

Legs: The femur and tibia of the first two pairs of legs rather stout; no trochantins; covered with simple hairs.

During the summer of 1914 several living specimens of the large crab Loxorhynchus grandis Stimp. were obtained at Laguna Beach. One of these was kept for some time in a tank of sea water, and its general movements were observed as it walked about on the bottom or attacked the sharks or other fish in the aquarium. Its movements were slow and its senses seemed not very acute in this situation.

A gross and microscopical examination of the nervous system gave much the appearance of these organs in other decapods, but the remarkably small size of the brain or head ganglion was especially noticeable. The nerves connected with this ganglion were long and slender. The optic was large, the tegmental a little smaller and the first antennal about as large as this last. Closely associated with the optic was the small oculomotor, and near the connectives the small second antennal. Other small nerves were connected with the brain, whose courses were not traced, including a pair of small frontal nerves.

The connectives with the thoracic-abdominal ganglion were long and slender, with each its small ganglion a short distance from the brain. A cross connection between these connectives was not seen. It may have been broken in the dissection.

The thoracic-abdominal ganglion has many nerves connected with it, as shown in the figure; the largest of these were traced to the legs and upper thoracic appendages. The legs are large and heavy and the nerve trunks in them are large; their combined bulk would probably be many times that of the ventral ganglion.

So far as studied, the internal arrangement of tracts and cells does not differ materially from the classic descriptions of Bethe in another species. One thing especially noteworthy is the fact that the nerve cells do not seem especially large, nor are the large ones numerous.

The nerve cells and fibers were studied in preparations fixed in Flemming's fluid and stained with iron hematoxylin. As in forms previously studied, the general structure of the ganglion in a way duplicates the structure of the nerve cells, in that a general reticulum forms a framework for the other structures in both. It is hard in individual cases to distinguish the supportive structures from the conductive, but the fibers and fibrils in or outside of the nerve cells run in longer straight lines—that is, they do not form so much of a meshwork, although they may branch and intertwine to some degree both within and outside the nerve cells. Large strands or fibers from nerve cells run as fibers, then divide into smaller masses of fibrils, and at last break up into numerous fibrils. The usual demonstration of nerve cells with their branches as shown by the Golgi or methylene blue methods, I believe, shows only the larger and smaller branches from nerve cells, and the smallest branches where the fibers break into fibrils are not shown at all.

In this and other arthropods which I have studied, it seems to me to be quite characteristic of the nervous system that many parts show fine fibrillæ more clearly than they are seen in vertebrates. This may in part be due to the nature of the insulating and supportive apparatus. As in Carcinus, described by Bethe, the optic tract enters the mesal side of the globulus and splits up into smaller and smaller parts, and is at last lost in the minute network of fibrils and supporting substance. Large bundles from the outside may be seen as dark masses here and there. These last are held in place in the section by many connecting strands which join the fibers from all sides. Some may be conducting fibrils, but it is hard to distinguish these from supportive. Probably most of the conducting fibrils leave at or near the termination of the thicker part of the fiber. The denser parts of the nervous system of this and other arthropods, such, for instance, as the material of the globulus, are composed for the most part of ultimate fibrillæ whose relationships at these points can only be conjectured at present because of their minuteness, their great abundance, and because of the intermingling of supportive or other materials of several little understood sorts. An extensive comparative study of these denser masses with various reagents should yield some interesting results.

Tigroid substance, mostly in the form of dots and flakes, was recognized, but not studied by special stains. The cells are surrounded by a dense capsule of connective substance, and in some cases the peripheral zone of the cell next the capsule is light. In some, this light zone is speckled with dark dots or lines. Some of these may be the ends of fibrillæ—in fact, some fibrils were traced—others may be tigroid substance, or possibly the bodies recognized by Poluszynski in some Crustacea, although his are stained by other methods.

Professor Hilton recently sent me a pseudoscorpion taken on the beach near water, which proves to belong to the genus Atemnus. Our common Florida Atemnus also occurs on the sea beach. The Californian species differs from the Florida form in having a larger hand and more hairy body.

Pale yellowish; cephalothorax a little longer than broad behind, narrowed in front, sides slightly sinuate, clothed with short, simple bristles; mandibles not one-third the length of the cephalothorax, with a short stylet; abdomen elongate, cylindrical, the segments with apical and preapical rows of simple bristles; legs rather large, with many simple bristles, all showing trochantins. Pedipalpi large, clothed with many fine simple hairs and bristles; the trochanters bituberculate behind near tip; the femur about as long as the width of the cephalothorax, of nearly equal width throughout; the tibia about as long as femur, a little broader beyond the middle, about equally convex on each side; hand extremely broad at base, barely shorter than the tibia; fingers as long as the hand, much curved, each with some tooth-like granules and a fine toothed ridge on the apposed sides.

Among the many marine forms collected and studied at Laguna Beach this summer were several Nebalia, which were taken by Mr. Lichti from a holdfast cast up on the beach. A specimen was sent to the National Museum at Washington, where it was classified as Nebalia bipes O. Fab. A brief description of the animal will be given in this paper.

Nebalia bipes O. Fab. (Plate I, Fig. 1) belongs to the order Phyllocarida, which is the linking order between the Branchiopoda and Copepoda on one hand and the Schizopoda and Decapoda on the other. There are only three genera, and the commonest of these is Nebalia. So far as I know this form has never before been reported from this region. The specimen here described was 9 mm. in length and a whitish flesh color. It was transparent in the living animal. The body is divided into a head, thorax and abdomen, having the normal malacostracan number of segments, except the abdomen, which is made up of eight, the last bearing caudal styles. There is a bivalved cephalic carapace extending back to the fourth abdominal segment and terminating in front in a movable rostrum. The eyes are large, round and raised on movable stalks.

There are two pairs of antennæ (Plate II, Fig. 2), the first pair being four-jointed, the last joint rather broad and armed with many hairs along the outer margin. The other joints have a few hairs on the articulating margin. The flagellum rises from the fourth joint, behind the fifth and has fourteen joints, each one armed with several hairs on the outer margin of the articulation. The second antennæ are slightly larger than the first and made up of three joints with a brush of plume hairs at the caudal end of the second joint. The flagellum is fourteen jointed. The mandible has a two-jointed palp (Fig. 3), with numerous hairs along the outer margin. The second maxilla also has a palp extending back under the carapace with the function of keeping the carapace free from foreign bodies.

The thoracic feet (Fig. 3) are about 1.5 mm. in length, eight in number and biramous. The outer margins are heavily covered with hair, while the inner margins are comparatively smooth. The first four abdominal appendages (Figs. 5, 6) are much larger than the thoracic feet, being 2.5 mm. in length, and are used for swimming, like those of the copepods. They are also biramous, the back margin and tip having numerous hairs along the edge, while the inner margins are lined with many plumous hairs. The first appendage (Fig. 5) is somewhat heavier than the fourth (Fig 6), but the hairs and spines are arranged in the same relative position. The fifth appendage (Fig. 7) is two-jointed uniramous and small, .9 mm. long. The sixth is one jointed and smaller yet.

The eight abdominal segments taper off in size and the last bears a pair of caudal styles (Fig. 8) which are lined with sharp spines along their outer margins. The ends of the styles are armed with two long, sharp spines.

Figure 2. Antennæ.
Figure 3. Mandibular palp.
Figure 4. Thoracic appendage.
Figure 5. First abdominal appendage.
Figure 6. Fourth abdominal appendage.
Figure 7. Fifth abdominal appendage.
Figure 8. Caudal styles.

The following is a fairly complete list of shore forms of starfish at Laguna. All but the last one mentioned were photographed by Miss Clency at Laguna Beach.

A large number of these were collected under stones and in tide pools near shore. A number were found with six arms, and often the arms were very irregularly developed. The power of regeneration is very marked, as may be determined from the appearance of even a small number of individuals.

This is the "soft starfish." Clark has called it Asterias forreri. Fisher (in first Laguna report) called it A. sertulifera. Verrill considers it different from either of these last two. We must thank Dr. Clark for this information, as well as for the identification of the remaining species of starfish.

This form is fairly common in the tide pools and under stones not far from shore.

This is our most beautiful species, but is not as common as the next species with which it is often found. On the points and especially among the mussel beds this species may be found. Its colors during life are beautiful with their delicate shades.

This is our most common species on the rocky points and among the barnacles and mussels, where they may be found by the dozen. The color variations are quite marked, some being a light red brown, others a darker shade. Some specimens of large size were obtained.

This beautiful starfish, with its pearl gray shades, is a deeper water form than the others. A few were found in the living condition cast up on the shore, and some were obtained from the fishermen, but they were not often found.

These broad armed starfish were found quite often in the tide pools near shore; usually of a deep orange color, they were sometimes much lighter than this.

Five species of barnacles were found last summer at Laguna Beach. For the identification of the first two of these, we must thank Dr. H. A. Pilsbry of the Academy of Natural Sciences, Philadelphia.

The most common of the acorn barnacles; found abundantly on rocks, mussels, etc. There are six valves or plates; the rostrum, carina, and two latera on each side. These plates are delicately marked with pink stripes. The connecting pieces are often transversely lined. This is the largest of the common acorn barnacles; the average height is about an inch.

This is one of the small acorn barnacles, also very numerous on the rocks at tide level. Here the plates, usually six in number, although in some the lateral plates are divided, are closely joined to each other without connecting pieces.

This is a very abundant species, and is found in great masses on the rocks near the tide level. It is readily known by the numerous irregularly arranged scales at the base of the capitulum. The valves are usually much worn, and many cases of regeneration have been noted. The peduncle is covered with fine scales.

This is a fairly abundant goose barnacle, found in holdfasts of kelp and occasionally on driftwood and floating objects. The size varies from a few millimeters to almost an inch in length. The distinguishing characters are the very fine striations on the valves, the presence of an umbonal tooth on the right scutum, and the proximity of the base of the carina to the scutum. The valves are a delicate pale blue color and the peduncle a deep purplish brown.

Two specimens were found by Mr. Lichti upon the beach at Green Bay, Laguna Beach, in September of this year. Others have been collected from the Laguna region.

It is a light pelagic form, with paper-like plates and angularly bent carina, with a prominent umbo.

During the past summer a large number of species and individuals were examined for eggs. Some of these fragmentary notes may be of use to others who may carry the study further.

The serpent stars were not especially studied for the eggs, but during July several hundred were collected from various places. These were mostly of one species. About one-third of these contained well developed ova. On July 14th and 20th, six individuals of the genus Ophiothrix deposited eggs in the aquarium jars. During August three out of twenty specimens had ova well developed, many may have been young.

Comparatively few female sea urchins were found. Out of 50 individuals opened, 36 were males, six females, and the rest young. Miss Wang also found that the males were more numerous than the females as they were collected, four to one. Miss Wang was able to keep the sperm alive for 96 hours in the laboratory before we had running salt water.

In the common shore goose-neck barnacle Mitella, ova and segmentation stages were found during the summer.

The common rock crab, Pachygrapsus, was examined many times during July and very few adult females were without eggs. During the same day mature ova and advanced embryos were found. August 10th, about half the females were without eggs. On September 4th, about two-thirds were without eggs. The early summer seems the more active spawning season.

A live female deeper sea crab, Loporhynchus, was caught on June 25th. The enormous mass of eggs was unsegmented and failed to segment in the laboratory, although the animal was kept alive for some time. On July 20th, another female was caught, the embryos were well advanced and it was possible to see the heart beat under the microscope. They lived only a few hours.

The sand crabs of the genus Eremita were found laying their eggs all summer. Some hundreds were examined, and it was found that up to September egg masses were nearly always found with the females. In the whole season, out of 236 examined, only 11 in September were without eggs. It was found that while the eggs on the swimmeretts were developing into crabs another egg mass was being formed in the ovaries, this last reached maturity about the same time that the young crabs on the swimmeretts hatch.

A species of Cypris was found in a pool about 1½ miles up Laguna canyon. These had many eggs on July 1; by July 17 no eggs were found.

A number of species of isopods and amphipods were found to have eggs during the summer, and during September it was very easy to obtain Ligyda with eggs or young, although the proportion of young stages was becoming less.

Members of the genus Caprella were found with eggs at different times during the summer and up into the fall.

Of the pycnogonids, the following genera were found with eggs during the summer: Lecythorhynchus, Ammothella of two species; Halosoma, Pycnogonium, Palene, Tanystylum of two species.

A number of chitons were examined, but with negative results. Probably many were young.

Some of the bivalved forms were examined, but the character of the period of reproduction is not yet determined.

The sea hare, Aplysia, laid its eggs in the aquarium jars during the middle and late summer.

Many of the species of nudibranchs collected during the summer were found to deposit eggs in the laboratory. One species, a light brown form, was found abundantly in kelp holdfasts. They laid coiled ribbon-like masses of eggs.

Eight different individuals of the genus Doris deposited eggs in the laboratory.

On July 28, two of the genus Hermissenda and one Spurilla (?) deposited eggs.

Laila and several unknown forms deposited eggs in the laboratory during the first part of September.

During the summer of 1914 I made a collection of some 230 bottles of annelids. It was thought best that I should publish a list of the families and of such species as I have succeeded in identifying.

I have three kinds of these "flat worms" in my collection. They are found under partly submerged stones.

There are seven different nemertines in the collection. They are recorded from holdfasts, seaweed tangles and from among vermetus tubes.

There are two or three different marine nematodes in the collection. They are most common in the finer moss.

There are two kinds of sipunculids, which seem quite distinct. Taken from eel-grass roots, from under rocks and mussels.

The blood corpuscles of a large number of vertebrates were studied at Laguna Beach during the past summer. Some of the sizes of cell and nucleus are given below. The blood was obtained as fresh as possible; in no case was the blood obtained longer than twenty-four hours after death. The corpuscles were measured by the ocular micrometer and checked by the aid of a camera lucida.

This paper is a preliminary article on the Caprellidæ of Laguna Beach, and deals with species that have so far been identified. Because of great variation, due to age, it is very difficult to place the different forms.

Mayer places C. geometrica as one of eighteen or twenty varieties of the species acutifrons, but I have thought it best to follow some of the other writers and use geometrica as the species name, as my specimen closely resembles the species which seems to be C. geometrica in several accounts.

The specimen here described is an adult male. The peræon (Plate I, Fig. 1) is robust and covered with many blunt tubercles. In this respect it varies from the specimens described by others who say the peræon is smooth. The young are comparatively smooth and develop tubercles on the caudal segments first. Cephalon furnished with a sharp anteriorly directed dorsal tooth. First segment shorter than the second, which is triangular in shape; third and fourth broad and a little shorter than the second; fifth, sixth and seventh each growing smaller respectively and truncate at the tip. Antennæ, stout; superior pair not half as long as the body, first joint short and twice as thick as the second but only half as long, third joint shorter than first; flagellum as long as the peduncle and composed of 15 or 16 joints, inferior pair extending to about the middle of the flagellum of the superior, joints long and narrow.

First gnathopod (Fig. 2), attached far forward, convex in shape and tapering slightly toward the finger, which was long as the palm and narrow; palm armed with tooth-like spine at the base and many hairs. Second gnathopod (Fig. 3), attached just posterior to the middle of the second pereiod, basal joint short and thick, not half as long as the palm; inner margin of the hand concave, armed with a tooth on the dorsal lobe and a broad, truncate tooth near the base of the finger, as well as numerous hairs; finger sharply concave « 223 » on the inner margin for about half its length. Branchia nearly round. Third, fourth and fifth peræopods (Fig. 4) similar in structure, short, stout, and armed with stiff hairs; hand nearly as long as rest of the extremity; palm broad and armed with numerous hairs, inner margin slightly concave, with two serrate teeth at the base.

Several specimens taken at Laguna Beach the latter part of July, from the Rhodophyceæ on the rocks.

The young of this species were very abundant at Laguna Beach, and I will give a short description of one because of the great variation from the adult. Plate II shows a young male with the antennæ inverted showing the setæ on the ventral side. The first five segments are of nearly equal length; peræon smooth; superior antennæ nearly half as long as the body, with inferior nearly as long as superior; flagellum with six to nine joints. Maxillipeds (Plate III, Fig. 5) with inner plate reaching apex of first joint of palp, armed with two teeth and spines; outer plate reaching apex of second joint of palp and armed with three small teeth. Upper lip (Fig. 6) bilobed, finely ciliated. First maxillæ (Fig. 7) two-jointed, palp and second joint armed with spines. Second maxillæ (Fig. 8) armed with a few hairs on the tip. Mandible (Fig. 9) has cutting plate made of five strong, unequal teeth; teeth of secondary plate nearly equal. First gnathopod attached far forward, triangular in shape and fringed with hairs. Second gnathopod (Fig. 11) attached the same as in adult, palm convex on inner margin, instead of concave as in adult, and armed with two small teeth near inner margin at the base; finger is concave and uniform in outline.

The specimen here described differs slightly from those described by Mayer, Holmes, Sars and others, yet I do not think the differences great enough to demand the naming of a new species.

The peræon (Plate IV, Fig. 12) is comparatively smooth, first two segments long, as long as the rest of the body; cephalon angularly produced in front into a very short, blunt spine. Figure 13 « 224 » shows a specimen with a body somewhat broader. The superior antennæ are about half as long as the body, first joint broader than second, but shorter; second joint longest of all; third longer than first, and narrower than second; flagellum shorter than the peduncle and made up of about twelve joints. Inferior antennæ slightly shorter than the peduncle of the superior. Mandible (Fig. 14) cutting edge denticulate, with five irregular teeth, spine row having three large, feathery spines; molar tubercle strong and prominent. First gnathopod attached far forward, against the maxillipeds; hand triangular, fringed with hairs on the inner margin and one spine tooth near the base. Second gnathopod (Figs. 15, 16) attached near the posterior extremity of the second pereiod, basal joint nearly as long as the hand, inner margin of hand lying in a straight line and armed with two teeth near the base of the palm, one on the lobe and the other to one side. Another long tooth is near the base of the finger and is separated from a large, broad tooth by a deep suture; inner margin of the finger irregular. Third, fourth and fifth peræopods are similar in structure and not as stout as those of C. geometrica; hands powerful and armed with three clumps of spines on small prominences; differing in this respect from those described by Mayer, Sars and others in that they lack the pair of serrated spines at the base of the palm. Finger stout and half as long as the palm.

The specimens were collected during the latter part of July at Laguna Beach, from the seaweed in the inner tide pools.

The peræon (Plate IV, Fig. 12) is comparatively smooth, with the cephalon devoid of a horizontal spine; the first three segments are long and narrow, of nearly equal length, the fourth a little longer than the third, the fifth twice as long as the sixth and seventh combined. The branchia are ovate in shape and moderate in size. Between the bases of the second gnathopods is a sharp projection (Fig. 13), and on each side another spiniform process pointing anteriorly. Superior antennæ slightly over half as long as « 225 » the body, first joint about half as long as the second, but broader; second twice as long as the first, and third a little longer than the first, but narrower; flagellum with sixteen or seventeen joints and about as long as the peduncle. Inferior antennæ reaching just beyond the peduncle of the superior. First gnathopod small, attached far forward, palm triangular in shape, tapering toward the finger, which reaches back entirely over the inner margin of the palm, armed with two sharp spine-like teeth at the base of the palm, and scattered hairs. Second gnathopod (Fig. 14), attached at the posterior end of the segment, basal joint quite short; other joints have their lobes ending in spine-like processes; palm slightly convex on the inner margin, with a spined lobe about a third of the way along, and a blunt tooth two-thirds of the way along separated from a broad tooth by a deep sinus; claw regularly concave; whole gnathopod with but few hairs. Third, fourth and fifth peræopods (Fig. 15) similar in size and structure; palm thick, with two serrate teeth a third of the distance from the base.

Two specimens taken on a holdfast that was thrown up on the beach at Laguna Beach during July, 1914.

During the summer of 1914 no special effort was made to collect fish, but the two following species were taken:

A specimen of this interesting but rather common Californian fish was taken in a tide pool and kept for some time alive in the aquarium. This is sometimes called "Midshipman," because of the bright metallic spots over the head and body, like the buttons on a midshipman's uniform of years ago. These spots are provided with a lens, connective tissue capsule and a reflector, and are supposed to be luminous.

A small specimen of this head-fish, or sunfish, was brought to us by the fisherman.

Due to the kindness of Dr. H. L. Clark of Harvard, we are able now to have some clearer idea about the number of species of sea urchins found at Laguna.

This is our most common species. It occurs by the hundreds in some of the larger tide pools, such as those near Seal Rocks. Judging from the specimens sent to Dr. Clark, the rather common greenish form, which we supposed to be distinct at first, is simply a younger form of the same species. This greenish form is more often found nearer shore under stones, where quite small individuals are abundant.

These larger urchins are not so common as they may have been. Larger specimens may be obtained under rock ledges in deep water. Smaller forms of the same species, which seem to have long reddish spines, may be found in the tide pools, but are not common.

In accordance with the general plan of the Laguna Marine Laboratory, a part of the work was with the birds of the locality.

As mentioned in the First Annual Report of the Laboratory, Laguna Lakes, about four miles up Laguna Canyon; Balboa, eight miles up the coast, and the surrounding rocky wild hills of Laguna, afford rich and varied collecting. Perhaps the richest area of bird life lies between Laguna and Balboa, in the Irvine Ranch. This is a large tract of land comprising many thousands of acres, extending about seven miles up the coast from Laguna and eleven miles inland. The canyons here are steep and, in some localities, very wooded in contrast to the more open canyons farther down the coast. For years this land has been given over to cattle grazing, and the Irvine company, in order to safeguard the stock, have allowed no one, except their own range riders, to enter the property. In the years 1911 and 1912 this was a state game preserve, and there is considerable rumor among local residents that it was stocked with some kind of pheasants. However, I have neither seen nor heard of a specimen taken. In all events, the protection afforded the birds has been taken advantage of, and quail, road-runners, many species of hawks and all of the smaller birds thrive in abundance and safety.

The fifteen days of collecting were spent largely in covering as large an area as possible, to obtain the widest range of representative species, with field notes, etc., to be placed in the Laboratory building, as a nucleus for greater collections and for the benefit of the local residents or summer visitors who are interested in the work of the College.

The additions to the first list, published in the First Annual Report, as mentioned before, are as follows:

A specimen taken in Balboa Bay, July 6, 1914. This is rather an unusual record, as the Loon is only a winter visitant; however, « 236 » some are known to remain throughout the summer. Mr. Swarth tells me that this specimen had lost the power of flight during its molt. He thinks this seems to indicate that Loons lose the ability to fly during molting, as do the Anseres.

June 27, I found a dead Pacific Loon cast up on the beach. The specimen was in very worn and oddly colored plumage. On examination Mr. Swarth said it was a partial albino and had skipped a regular molt.

A female taken July 6, 1914. This is a very late record for this bird, since it leaves mostly in April. It was found resting on a sand spit in Balboa Bay.

One taken at Laguna Lakes, now mounted and in possession of J. N. Isch, Laguna Beach.

A specimen taken on the sand spits in Balboa Bay, July 6, 1914. This appears to be an early fall migration record.

Abundant in August, less common in July. Often in company with Hudsonian curlews (Numenius hudsonicus) along the coast. One taken as early as July 6.

Found in August along the rocky coast by Arch Beach (down the coast from Laguna).

Fairly common in the hills. There seemed to be several different species of hawks at Laguna, but as they were very shy and most of them took refuge in the forbidden territory of the Irvine Ranch, none of the larger ones were obtained.

There are five Bald Eagles that are commonly seen along the beach near Laguna. When followed, they are always found to come to rest on the high, rocky west slope of Aliso Canyon (down the coast from Laguna). The owner of the canyon, Mr. Joe Thurston, tells me that for years a pair has bred there, and these other three are young that did not leave the vicinity. He is very jealous of their safety, and it is to be hoped they may always be kept there as a natural attraction. This is one of the few breeding points along the coast from which the Bald Eagle has not been driven. In March, 1895, Mr. E. Davis took two fresh eggs of the Bald Eagle near Laguna Beach. It would be very interesting to know whether or not he obtained them from the same canyon; if so, this must be a very old breeding place.

One shot from a flagstaff in the center of town. The date is uncertain, but appears to be about 1905. The specimen is now mounted and in the possession of Mr. J. N. Isch of Laguna.

I noted two birds which were undoubtedly of this species along a rocky stretch of the coast, but was unable to collect one.

I obtained two specimens of this species from a flock in Nigger Canyon. This seems to be a very low altitude at which to find these birds.

I collected two of this species in the willow bottoms July 25, 1912, which seems to be an indication that they are summer residents.

Very common in one particular grassy glade at the top of the ridge around Laguna, also at the tule lakes. I took a young bird June 27, which seems to indicate the birds were breeding there. This is one of the few breeding records for Southern California.

This concludes the additional list. There is one other breeding record worthy of note. In Nigger Canyon (Irvine Ranch) there is a Great Blue Heron nesting colony. Although such colonies were at one time common along the coast, they are now becoming rare. The colony is situated in a large clump of sycamore trees, in the bottom of the canyon, some half mile or more inland. There are about thirty nests, quite white with bird lime; the trees and ground also are well covered, showing the permanency of the site. On June 26, 1914, I visited the colony and found very young birds, but « 239 » no eggs. The whole place was filled with a peculiar stench, while the croakings of the old birds, coupled with the frightened squawks of the young, and the invisible, choking powder down, made the place quite undesirable. The old birds were very bold, but not pugnacious, and while the examination of the nests went on retired to nearby trees to watch the proceedings, while the young crowded out to the uttermost branches, keeping up a continual racket.

Owing to the protection afforded by the Irvine ranch, the colony has thrived and probably will for an indefinite period.

On June 18, 1914, my wife and I found a hitherto undescribed gall on Stanleya glauca Rydberg, a remarkable cruciferous plant growing about four miles north of Boulder, Colorado. Thinking to rear the adults, the galls were placed in a bottle with some earth and watched for a long time, but nothing appeared. Supposing the effort to have been unsuccessful, I set the bottle aside; but long after discovered that adults had eventually emerged, but had died and were covered with mold. I was able to rescue sufficient fragments to make the drawings given herewith, which, together with the « 241 » larval characters, serve very well to indicate the genus, with enough of the specific characters for ready recognition. The species may be called

Gall: A swollen flower of Stanleya glauca, containing many pallid larvæ. The sepals are thickened and enlarged.

Larva: With the skin strongly verrucose; breastbone of the same general type as that of P. fructicola Kieffer; caudal end with strong spines.

The identification of the hydroids included in this list was undertaken while making a general collection of the marine forms of the Laguna Beach region. The specimens were taken mostly from the miscellaneous shore collections, and there is no claim to exhaustiveness. They were, however, examined as fresh material, and nearly always with the living polyp still present. There was abundant promise of opportunity for the study of ecological and developmental problems, of which I was unable at that time to take advantage.

The region covered included a strip of shore line of about two miles in extent. Part of this is sandy beach which after a heavy tide would often be covered by the laminæ and holdfasts of Macrocystis and other kelps, to which hydroids were generally attached. The remainder of the shore was rocky and of a remarkably varied conformation, including tide pools, deep channels, rock tables, mussel beds, and short stretches of sand and pebbly beach. Scarcely any attempt was made at dredging, and the shore itself was by no means completely searched.

This single representative of the Gymnoblastea more nearly corresponds to the T. marina described by Torrey, '02. It is, however, much smaller, the erect branches being scarcely ever as much as 15 mm. in length, instead of 30-50 mm. The proximal tentacles are 28 and 29 in number, instead of 22-26, described for T. marina. There is very little appearance of annulation of the stem, and no evidence of the "stem increasing in diameter distally." The habitat is also different. T. marina is given as growing "between tides on the lee side of rocks exposed to the breakers of the open sea." The tubularian in question, however, was found only clustered in « 243 » among the rootlike holdfasts of the Macrocystis at a depth of four to six fathoms. Moreover T. marina is not reported as occurring farther south than Pacific Grove. There seems to be some reason for considering this a new species, but further investigation, and perhaps a study of comparative material, will be necessary to determine its systematic position.

Torrey's description gives "hydrocladia 3-4 mm. long." Out of a large number examined, however, I found none with hydrocladia more than 1.5 mm.

Both A. inconspicua and A. struthionides were taken from the red algæ brought in by the tides.

This form appears to have a wide variation in its bathymetric distribution. Specimens were collected from the mussels which are uncovered at mid-tide, and from the carapace of Loxorhynchus grandis, a deep-sea crab that is only rarely brought to shore by the highest tides.

Mention may be made here of one of the Campanulariidæ recently sent me by Professor Hilton of Pomona College, to whom thanks are due for many courtesies. It does not appear to be any species yet reported from this coast. Its identification, or at least an adequate description, must, however, be postponed for a future paper.

During the six weeks of summer school of the past season (1914) there were in attendance about thirty students and investigators, some of whom remained until the middle of September. In addition to these there were several hundred visitors to the aquarium and laboratory, in spite of the bad condition of the roads. After the middle of the summer running salt water was piped to the laboratories and aquaria, so that it was much easier to keep specimens alive. Yet even before this many interesting forms were on exhibition. At all times there were numerous marine animals for study, as well as many living land species, such as tarantulas, lizards, frogs, a large turtle and a number of snakes. Several rattlesnakes were kept in a box in the front of the building until the end of the summer. Several of the largest rattlesnakes were an unending source « 246 » of interest. One day several people were able to observe a king snake swallow a slightly smaller rattler.

From day to day a varied display of marine forms was to be found in the aquarium; at different times rare and curious fish, starfish, sea urchins and devilfish, while now and then some of the larger specimens, such as sharks and rays, were brought in. Some of these were kept alive in the large cement floor tank or in the larger jars. Great quantities of smaller specimens were no less interesting, such as sea spiders, serpent stars of many beautiful colors and markings, brilliant nudibranchs, large abalones, curious small crabs and, in fact, all the interesting or beautiful specimens that could be found.

Each week, until September, the public was also invited to attend the evening lectures. These were usually of a general nature relating to the life of the sea, but some told of land forms as well, and one was on the Hopi Indian Snake Dance.

The chief work of the laboratory during the first six weeks was in connection with the Summer School. There was a class of nine in General Biology, twelve in General Zoology, and five in General Entomology. There were, in addition, from six to twelve doing special work for a longer or shorter period. Students from three Pacific coast colleges were in attendance, although most of the students and advanced workers were from Pomona College. Two or three studied special Histological or Embryological topics, but the majority were interested in faunal and distributional problems. As announced at an earlier time, the Laguna station is but an extension « 250 » of the Biological part of Pomona College, and the plan for special work includes a survey of the whole region from the mountains to the sea. With this in mind, many explorations have been begun, and the aid of specialists in various fields is sought, so that we may first of all know the living forms that inhabit this varied and interesting section of California. We hope that a better knowledge of the species in the different groups here may lead to more extensive observations both by advanced students from the College and by others.

Together with the special and general work of the students, collections of marine and land animals were obtained all through the summer. Some of these were for the local collection, others to aid in the work of the survey. Among the collections made were many species of sponges, hydroids, polyzoans, pycnogonids, marine worms, Crustacea of several groups and, in fact, nearly all the shore forms that could be obtained between tides or a short distance from shore with a small boat. There were also extensive collections of insects and spiders from the hills and from up and down the coast.

For the study of marine and land animals Laguna has proved itself once more well adapted to our uses. The high hills come down near the ocean at several points, and there are miles of interesting and varied coast line in both directions from the laboratory. All summer, students in small or larger parties tramped over the hills and through the many interesting canyons to the lakes, to the Mission of San Juan Capistrano, or to Balboa and the mud flats. Saturday was the regular field day, and the longer tramping trips were then taken, but very often of an evening groups of students enjoyed beach suppers or picnics in some canyon or up in the hills.

That Laguna and its surroundings is a region of great interest and beauty is evinced by the fact that a number of artists make it their home, while it is visited by many others. The trail to Balboa, along the beach or the cliffs, is wonderfully varied and beautiful, « 252 » while the drive from Laguna to San Juan Capistrano, except for the lack of villages and ruins, might well be considered a part of the famous Amalfi Sorrento drive in Italy.

During the summer of 1915 courses in general as well as special zoology will be given. General entomology may also be studied with advantage. For those who are just beginning biological work there may be special exercises arranged, as last summer.

There are eight private rooms in the laboratory for special workers. Some of these will be available for investigators who may wish to follow out problems of their own or those suggested by the work of the station. Write

Subscribers and others are urged to use these columns to make their wants known. As the Journal goes to all parts of the world we hope to make this a very useful feature of the publication. Exchange notes are free to subscribers.

Wanted—Myriopods from all parts of the world. Will name, exchange or purchase. R. V. Chamberlin, Mu. Comp. Zoology, Harvard Univ., Cambridge, Mass.

Will exchange insects of any order from Southern California, for Microlepidoptera from any part of North America, preferably pinned, with complete data concerning capture. Fordyce Grinnell, Jr., Pasadena, Cal.

Coccidæ—California Coccidæ exchanged for specimens from all parts of the world. E. O. Essig, Secretary State Commission of Horticulture, Sacramento, Cal.

Wanted—Cephalopods (in alcohol); Chitons (in alcohol or dry); shells of West American Mollusca; zoological literature. Offered: West American and other molluscan shells; zoological pamphlets, mainly on the Mollusca. S. S. Berry, 502 Cajon St., Redlands, California.

California Syrphidæ, Aphididæ to exchange for non-California Syrphidæ. W. M. Davidson, Walnut Creek, Cal.

Wanted—For exchange, papers on marine and fresh-water Protozoa. Albert L. Barrows, Department of Zoology, University of California, Berkeley, Cal.

Wanted—Information on any mite-papers for sale or exchange that have an economic bearing. H. V. M. Hall, Room 8, Court House, San Diego, Cal.

Wanted—Specimens and separates relating to the pseudoscorpions, in exchange for local species. M. Moles, Claremont, Cal.

Wanted—Literature and determined specimens of Collembola, in exchange for local forms and literature. G. Bacon, Claremont, Cal.

Wanted—Determined specimens of Thysanura in exchange for local species. R. Gardner, Claremont, Cal.

Wanted—Separates relating to the nervous system and sense organs of the invertebrates in exchange for reprints by a number of authors on this and other topics relating to the anatomy of invertebrate animals. W. A. Hilton, Claremont, Cal.

Tabanidæ from all parts of North America to exchange for Tabanidæ from the Western United States and Mexico and Central America. Jas. G. Hine, Ohio State University, Columbus, Ohio.

Sarcophagidæ from all parts of the world bought or exchanged, according to arrangement. North American material determined. R. R. Parker, Ent. Lab., Mass. Agri. College, Amherst, Mass.

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Founded 1862

Incorporated 1890

Natural Science Supplies

Mineralogy: Prepared collections; Blowpipe and Laboratory material; Museum specimens, etc.

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Biology: Systematic collections; Laboratory material for dissection; Museum specimens; Models, Charts, Microscope slides, etc.

Birds: Mammals: (Skins and skeletons.)

Entomology: Supplies; Systematic and Economic collections; Museum specimens, etc.

Anatomical Models; Sponges; Corals and other invertebrates.

Catalogues and Price Lists in all departments sent free on request.

Recent Catalogues and Circulars:

P. 29. Microscope Slides.
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P. 115. Collections of Fossils.
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Bethe, A.		1898
Das Nervensystem von Carcinus maenas. Arch. f. Mic. Anat. Bd. 51.
Poluszynski, G.		1911
Untersuchungen über den Golgi-Kopsch'schen apparat und einige andere Strukturen in dem Ganglionzellen der Crustaceen. Bull. Acad. Sc. Cracovie.
Figure 1.	Outline of the cephalothorax of Loxorhynchus, showing the position and size of the nervous system. One-half natural size.
Figure 2.	Brain of Loxorhynchus from above. ×10. o, Ocular nerve; m, oculomotor; t, tegmental nerve; a, first antennal nerve; b, second antennal; c, connective.
Figure 3.	Nerve cell with fibrils from the brain. ×900.
Figures 4 and 5.	Nerve cells near each other in the brain fibrils are shown. ×900.
Figure 6.	Neuroblast from a doso-median mass of the brain. ×900.
Figure 7.	Neuroglia cell with branches from the brain. ×900.
Figure 8.	Two fibres breaking into fibrils. From the brain. ×900.

Common Name	Scientific Name	Average Size of Corpuscle Microns		Average Size of Nucleus Microns
Common Name	Scientific Name	Length	Breadth	Length	Breadth
Western Gull	Larus occidentalis	14.70	8.82	6.53	3.27
Heermann Gull	Larus heermanni	14.05	7.84	6.21	2.77
Great Blue Heron	Ardea herodias	13.72	8.82	6.53	3.27
Red-breasted Merganser	Mergus serrator	13.07	7.51	6.86	2.77
Arkansas Kingbird	Tyrannus verticalis	12.77	9.47	5.55	3.10
California Road Runner	Geococcyx californianus	12.09	9.15	5.27	3.27
Long-billed Dowitcher	Macrorhamphus griseus scolopaceus	12.41	8.49	5.24	2.46
Least Tern	Sterna antillarum	11.76	8.46	6.21	2.94
Semipalmated Plover	Ægialitis semipalmata	11.43	6.21	5.24	2.77
Arizona Hooded Oriole	Icterus cucullatus nelsoni	11.27	8.49	4.41	2.94
San Diego Song Sparrow	Melospiza melodia cooperi	10.94	8.33	5.27	2.53
Least Vireo	Vireo pusillus pusillus	10.45	9.47	5.55	2.77
California Woodpecker	Melanerpes formicivorus bairdi	10.45	6.53	5.24	2.77
Belding Marsh Sparrow	Passerculus beldingi	10.08	6.86	4.90	2.77
Willow Gold Finch	Astragalinus tristis salicamans	9.80	6.79	6.04	2.94
California Horned Lark	Otocoris alpestris actia	9.47	6.21	4.25	2.12
Western Lark Sparrow	Chondestes grammacus strigatus	8.49	5.55	5.24	3.10

The Project Gutenberg eBook of Journal of Entomology and Zoology, Vol. 06, No. 4, December 1914

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Pseudoscorpions in the Claremont-Laguna Region—Margaret M. Moles	187
Some Points in the Nervous System of a Large Deep Water Crab—Wm. A. Hilton	198
A New Pseudoscorpion From California—Nathan Banks	203
A Nebalia From Laguna Beach—R. La Follette	204
Starfish of Laguna Beach	209
Barnacles of Laguna Beach	212
Notes on the Eggs of Some Laguna Beach Invertebrates—P.A. Lichti	215
Preliminary Notes on Some Marine Worms Taken at Laguna Beach—W. F. Hamilton	217
Studies in the Comparative Size of the Red Blood Corpuscles of Birds—Chi Tsau Wang	221
Caprellidæ From Laguna Beach—R. La Follette	222
Short Notes	233
Additional Notes on the Birds of Laguna Beach—Leon L. Gardner	235
A New Dipterous Gall on Stanleya—T. D. A. Cockerell	240
Hydroids of Laguna Beach—Prof. A. M. Bean	242
Summer School at Laguna Beach	245