JOURNAL OF ENTOMOLOGY AND ZOOLOGY VOLUME \ III, 1016 in'HLISHF.D (ilARTKHLY BY THF. DKl'ARTMKNT OF ZOOLOCiV OF I'OMONA COLLKDO CLAKF^MONT, CAI.IFOHNIA, L". S. A. / t, Contents of Volume Mil Volume VIII, Number 1 Shaw, M. Berry, S. S. t'aprulli.hn- tr,.in La^niKi Beacli. Tlu- ()C10|M,,| ()>vlll,.l.- Ill (.'.ililoi-- Xl>- '"■'■ ' Hilton, W. A. Fieb-E. P. Van Duzee x,,tc, on Cu.-lviiu-ratcs and Kchi- Ri-vK-w ot tlu- Coiui, Maci-,.lylu>. iiodc-rnis from La-una Beach, ■''■ SS. Banks, Nathan Xru Calitonua .\l.u>. 1_\ ^ate, Margaret Lima l)i.lii>ci.ii.-, at La.;,;iiiia Beach, Volume VIII, Number 3 Hilton, W. A. \ii lntci-c^tiii.14 Basket Star from l.amiiia Beach, 17. Hilton, W. A. A Kemarkalile I '\ ciioyoiiid, IV. Essig, E, O. Hilton, W. A. ''";; '"'^"'"'^ \ anessa in California, riie l.ile Hi.story of .\iu.plodac- '''' l.\lu~. I'.rectus Cole, 2S. Moles, Margaret L. Hilton, W. A, Cral. .Spiders of the Clarenioilt- .\lites from the Clarem,.nt I,a,L;uiia I.aumia Kei^ioii, 112. '•^"^■-'"'i' ■'■''■ Girault, A. A, Simjmer School ,it l.a.-una Beach 'phe New Chalcid I'lies from Cali- fornia. 119. Courses ottered at the Summer School of the Lagunn Picacli Biolo.siical Lal)oratory, 191(i. 40. Hilton, William A. Some Remarks on tlie Central Xer vous System of the Startisli. \2.> Volume VIII, Number 2 Cockerell, T, D. A. Volume VIII, Number 4 Xew and Litlh Known i'.ees fro California, -l.v Hilton, W. A, Crustacea from l,a,L;iina Beach. ( Hilton, W. A. Nininger, H.H Tin Central XeiMiiis Svstem and Moles, Margaret L. The Cr.iwth and C(dor I'altenis ill Spiders. 129. Studies m the Life Histories of Simple Reactions of a Rare Two Carpenter Bees of Cali fornia. with Notes on Certaii Parasites, 1,S8. \\Tii]i Scorpii Hilton, W. A, \ I-;, ire I'isli from l.a.uiina Beach. Crawford, David L. Xd. .\lhcrt John Cook, U.S.C. 1(j9. Grinnell, Fordyce Hilton, William A. .\n Cnnamed Butterlly from San The Cinlral Xervous System of I'rancisco, 8,i. Serpent Stars, 171. Iv^ec^. l.idex to \\)lunie VIII Alepisaurus acsculapius. 80. Alpheus (lentipcs. 67. Anoplodactylus. 25. Aiulrcna auriconia. 47. opacicentris. A7. osmioides. 45. pcratra. 46. plana, 47. pniiiorum niarilcinnis. 40. Anthidium aiigelanini. 62. Aphanotus brevicornis, 164. .-\ranea gemma, 134, 141. Augochlora pomoniclla, 51. Banks, n.. 12. Basket star. 17. Bees, California. 4,v Berry, S. S. Bctaeus longidactylus. 67. hardfordi, 67. Blephariopoda occidentalis. (i7. Bothriocyrtiim californicuni. 14(). Bracliyura, 69. Bunodactis xanthogrammica, 90. Butterfly. San Francisco. 8,i. unnamed, 83. Callianassa longimana, 65. californiensis, 65. Cancer antennarius, 71. Caprella tuberculata, 86. Caprellida- from La.sfuna. 86. Carpenter bees. 158. Catc, M., 94. Central nervous system, 171, Cerationa neomexicana, 62. punctigera, 62. Chalcid flics, 119. Cockerell, T. I). .\., 43. Coclenterates, 88. Coelioxys angulifera. 6l megatricha, 60. Color in spiders. 129 Conanthalictus bakeri. 51. macrops, 51, Cook, A, J., 169. Crab spiders, 112. Cragon migromaculatus, 67, Crawford, D, L.. 169. Crnstaeci, hagiina, (i5. Cycloxanlliiips novt-nick'ntalus. 71. Dasygyius tubcrcnlains. 71. Diandrcna cla\ ivcnlris. 50. cyanosoma, 49. scintilla, SO. provanclieri, 62, l'',cliinoderms from La.L;una luaili. 8,S. ICmertia analo,ga, 67. I^pialtus bituljcrcnlatiiv niininia, 69. nuttallii, 69. productus, 69. ICssig, E. O., 97. pAipodes brevipes, 14. Eurycyde spinosa, 19. Exomalopsis melanurus, 5V. velutinus, 58. C.irault, A. A., 119. Clossoperdita pelar.goidcs. 43. Gorgonocephalus eucnemis. 17. Grinnell, P., 81. Hcmiptera, 5, Hesperapis nitidulus, 45. Herbistia parvifrons, 72. Heterocrypta occidentalis. 71. Hilton, W. A., 19, 2S. 65, 73. 80. 123. 171. Latrodectus niactans, 144. Lepidopa myops, 67, Lcpidoptera, 97. Lima dehiscens. 94. Lophopanopons beatbii. 71. leucomanus. 71. I.oxorbyncbu> cri-palu-.. 71. grandis, 71. Ludia foliata, 93. Lycosa, 145, Macrotylus aniienus, 6. dorsalis, 7. cssi.gi, 8, imfuscatus, 10, limeolatus, 9. multipunctatus. 7, regalis. 11. 6-.guttatus. 6, tristis, 11, Mites, 12, Mites from Clareinont. 3B. Moles, M. L.. 112. 129. Miiniilia quadrispiiia. 7.S. .\crvoiis system. 7.!. 12.1 \ininser. H. H.. 1.S8. .Xiimada civilis. S<>. irytlirospila. Mi. inclanosoma. .^.^. odontoccra. .^7. pyrrlia. .S5. siihviciiialis. ^ VOLUME EIGHT NUMBER ONE JOURNAL OF ENTOMOLOGY AND ZOOLOGY MARCH, 1916 PUBLISHED QUARTERLY BY POMONA COLLEGE DEPARTMENT 0/ ZOOLOGY CLAREMONT, CALIFORNIA, U. S. A. CONTENTS The Octopod Ocythoe in California — S. S. Berry . - - - 1 ' Review of the Genus Macrotylus. Fieb — E. P. Fan Duzee - - 5 •^ New California Mites — Nathan Banks 12 An Interestnig Basket Star From Lacuna Beach — fV. A. Hilton - 17 A Remarkable Pycnogonid — W. A. Hilton 19 The Life History of Anoplodactylus Erectus Cole — W. A. Hilton - 25 V Mites From the Claremont Lacuna Region — jr. A. Hilton - - 35 Summer School at Lacuna Beach 37 Courses Offered at the Summer School of the Lacuna Beach Biological Laboratory, 1916- - . - 40 Entered nt Claremont. Cal, Hiist-omcc Oct. 1, luio, as second class matter, under Act of Congress of Journal of Entomology and Zoology EDITED BY POMONA COLLEGE, DEPAETMENT OF ZOOLOGY Subscription $1.00 fo domestic, $1.25 to foreign countries. This journal is especially offered in exchange for zoological and entomological journals, proceedings, transactions, reports of societies, museums, laboratories and expeditions. The pages of the journal are especially open to western ento- mologists and zoologists. Notes and papers relating to westei-n and Californian forms and conditions are particularly desired, but short morphological, systematic or economic studies from any locality will be considered for publication. Manuscripts submitted should be tj-pewritten on one side of paper about 8 by 11 inches. Foot notes, tables, explanations of figures, etc., should be written on separate sheets. Foot notes and figures should be numbered consecutively throughout. The desired position of foot notes and figures should be clearly indicated in the manuscript. Figures should be drawn so that they may be reproduced as line cuts so far as possible. An unusually large number of half tones must be paid for in part by the author. Other more expensive illustrations will be furnished at cost. Figures for cuts should be made to conform to the size of the page when reduced, that is, 5 by 7i^ inches or less. The lettering should be by means of « printed numbers and letters pasted on the drawings, in most cases. Authors of articles longer than a thousand words will receive fifty reprints of their publications free of cost. If more than this are desired, the order should be given with the return of the proof sheets. Extra copies and special covers or special paper will be furnished at cost. Authors of short contributions will receive a few extra copies of the number containing their articles. Manuscripts should be sent by express or registered mail. Address all communications to The Joubnal of Entomology and Zoology William A. Hilton, Editor Claremont, California, U. S. A. The Octopod Ocythoe in Ccilifornia S. S. BERRY Tn the course of my review of the West American cephalopods puMIsheil a few years ago (Bulletin Bureau Fisheries, v. 30, p. 275), I wrote of a well known group of pelagic Octopoda as fol- lows : "No other group at all approaches Argoiiattta in its assemblage of utterly distinctive characters, the nearest being the genera Ocythoe and Tremoctopiis, which are not known to be represented in our waters." That Ocylhoe, at least, is a member of our fauna, T have long suspected, partly because of a specimen which was exhibited in one of the Los Angeles curio stores some years since, but ignorantly held at so inflated a figure, that it could not be obtained even for one of the university museums, and another without label, but thought to be from Southern California, which is now in the collection of the State University at Berkelev. A further bit of evidence, which to me sav-ors strongly of this same animal, lies in a paragraph by the late Dr. C. F. Holder with regard to a specimen obtained by him at Avalon f Scientific American, October 16, 1909, p. 283). He wrote : "It Is given in all the textbooks, T believe, that the male of the argonaut Is a minute animal hardly an Inch long. This cannot be so In all species. I have a male which has a radiant spread of eight or nine inches, and Is as large as the female. . . . The male of this species Is large, and might readily be taken for an octopus, having its habits." As a male Argonatita answering such a description as this would be a sheer absurdity, the lines quoted served at first to occasion me no little perplexity. Surely, however, the suggestion that Holder's specimen was a female Ocvthoc and not an Argnnatita at all, seems not only possible, but plausible. These cases are all strong indications that OcytJwe belongs to our fauna but. In view of the obvious uncertainty attending each, no formal record of the fact has yet found Its wav into print. Pomona College, Clareniont, California 3 A very large and finely preserved female, recently sent me by Prof. William A. Hilton, now settles the matter without question. This specimen (S. S. B. 453) was obtained from near Avalon, Santa Catalina Island, California, in the summer of 1915, by Mr. W. F. Hamilton. Unfortunately I ha\e no comparative material from other regions available, so that with only the aid of such figures and printed descriptions as are at hand, the specimen cannot be distinguished from the Mediterranean O. tiiherculata, de- scribed and named by Rafinesque just over one hundred years ago. As luherculata happens to be the only species of the genus enjoy- ing general recognition, and as it is a pelagic creature with the pos- sibility of very wide dissemination, the identification seems never- theless to be reasonably certain, though it should be admitted that the areas it is alleged to inhabit are so widely separated that ade- quate material may later reveal differences which will be thought worthy of recognition. In addition to Mediterranean localities the species has been re- ported from Vineyard Sound, Massachusetts, from the West In- dies, and from Japan. The sexes in this genus, as in the related Argouattta and Trem- octopus, show such extreme dimorphism, that the description of one applies in scarcely a single particular to the other. The female Ocythoe, however, is very easilv distinguished from other cephalo- pods bv the large Octopus-like body, the ventral surface of which is very curiously ornamented with numerous conspicuous cartilaginous tubercles, connected by radiating ridges. The enormous and power- ful funnel is also noteworthy. The more important measurements of the present specimen are appended below, many of them necessarily more or less estimated. MEASUREMENTS Total length 440 mm. Length of body (dorsal) 160 mm. Length of body (ventral) 155 mm. Tip of body to base of dorsal arms 170 mm. Width of body 1 1 5 mm. Width of head 74 mm. 4 Journal of Entomology and Zoology Length of head 10 mm. Length of funnel 64 mm. Width of funnel opening 12 mm. Length of right dorsal arm 275 mm. Length of left dorsal arm 265 mm. Length of right second arm 200 mm. Length of left second arm 195 mm. Length of right third arm 180 mm. Length of left third arm 185 mm. Length of right ventral arm 250 mm. Length of left ventral arm 240 mm. Diameter of largest suckers 9 mm. Review of the Genus Macrotylus. Fieh. (Hemiptera) E. P. Van Duzee, Univ. California This genus in common with others of the tribe Phyl'im has the aroHas parallel with the claws and attached to them, at least at base. Here they are large, exceeding the very small claws. Like other genera in the division Oncotylar'ni they have the prosternal xyphus convex at base and more or less carinate on the margins at apex. In Macrotylus the presence or absence of a hamus in the cell of the wings seems to have little significance and an examination of numer- ous individuals would possibly show that it may be either present or absent in the same species. I have found it present in amcvniis, sc.xguttatiis, regalis, infusccitu$ and essigi, and absent in tristis, liiwo- Icilus and dorsalis. I have been unable to determine this point in the unique type of muUipiinctatiis. Our species are mostly hand- some, clearly marked insects. They may be distinguished as fol- lows : Apex of the closed elytra marked with six large white spots placed on the outer border of the cuneus and membrane. 1 . Cuneus without a basal white spot; membrane black with pale nervures and sometimes with white marginal spots. 2. 1. Color deep black; head greenish olive; basal spot of the cuneus sometimes yellow. 1. 6-guttatus Prov. Color pale yellowish-green; cuneus and membrane blackish, strongly contrasting with the white spots, size very small. 2. ajna'iiiis Reut. 2. Color above pale testaceous marked with numerous distinct round black dots; head deep black with two green dots on the base of the vertex; membrane black with two white spots beyond the cuneus. 3. multipunctatus n. sp. Membrane without white marginal spots, the nervures only pale. 3. 3. Color clear yellow with a broad black dorsal stripe connecting with the black membrane. 4. dorsalis n. sp. Color sometimes yellow, then without a black dorsal vitta. 4. 6 Journal of Entomology and Zoology 4. Color of the elytra clear yellow with the claviis, narrow costal margin, apex of the corium and the membrane black; head and pronotum greenish marked with black. 5. cssic/i n. sp. Color never yellow with clearly defined black markings. 5. 5. Color above greenish-yellow obscurely clouded with fuscous, becoming darker on the pronotum, clavus and middle field of the corium; membrane black with the ner\'ures clear yellow. 6. lincolatHs Uhl. Color black red or testaceous, never greenish-yellow. 6. 6. Color testaceous, more or less infuscated leaving the costal margin pale; above thickly clothed with pale pubescence. 7. infuscattis n. sp. Color black or red, the costa never pale. 7. 7. Color slaty-black with the nervure of the membrance conspicu- ously white. 8. tristls Uhl. Color dull red, the costal margin slenderly black, the head and callosities sometimes black. 9. rcgalis Uhl. 1. Macrotyhis 6-giittatus Prov. A very distinct deep black opaque species with the head polished and olive green or even yellowish before; the apex of the second antenna! joint and the apical one-half of the tarsi fulvotestaceous. The cuneus has a large oval yellow or white spot at base and the apex is white. Near the end of the membrane is a large white marginal spot and there is a small one close to the white apical portion of the cuneus. I swept four examples of this interesting form from a low bush at Aylmer, near Ottawa, Ont., June 30, 1912. 2. Macrotyliis annvniis Reut. This is a \ery small species, scarcely 2^^ mm. to the tip of the membrane. It is pale yellowish-green with the cuneus and mem- brane fuscous and marked exactly as in the preceding species except that the apical white spot is smaller. The antenns are fuscous with pale incisures, and the feet pale with the anterior edge of the femora and the tibiae and tarsi fuscous or black. The type of this species was taken in Connecticut by Dr. W. E. Britton, Mrs. Slosson has taken it at Delaware Water Gap, Pa., and I took a very small example at Estero, Fla., in May. Pomona College, Clarcmont, California 7 3. Mcicrulylus nuillipmulatiis n. sp. A little broader than lincolcitiis and its allies; pale testaceous closely dotted above with distinct round black points. Length 3}i mm. to the tip of the membrane. Head as in b-yuttatiis, more vertical than in Uncolaliis and the allied forms. Vertex nearly flat, collar-like; front convex, especially anteriorly; clypeus very prominent and polished. Pronotum as in 6-(jiit talus, shorter than in the li)ieolaliis group, its carinate sides rectilinear; anterior angles scarcely rounded but not dentate as in 6-ynttatits. Basal lobe of the scutellum broadly exposed. Eltyra rather wide, the sides distinctly arcuated toward their apex. An- tenna" short, the basal joint little surpassing the tip of the clypeus. Cell of the wing without a hamus. Color pale testaceous tinged with yellow on the scutellum and on the median line and anterior margin of the pronotum. Head black, polished on the clypeus; vertex with two squarish pale green spots connected anteriorly with a very slender line. Pronotum, scutellum and elytra ornamented with distinct round black dots, each dot carrying a stiff black hair; incisure of the scutellum on either side and the basal lobe anteriorly marked with black. Mem- brane blackish, the nervures clear white; margin with two large whitish-hyaline spots beyond the tip of the cuneus, separated by a deeper black one. Antennas black, the incisures white, the middle of the second joint broadly testaceous. Legs testaceous, extreme apex of the femora white preceded by a black annulus; tibis nar- rowly black at either end, the tarsi black. Beneath fuscous, the edges of the ventral segments white. Genital segment and region of the stomata black. Described from a single male example taken by me on the flats near the lower end of Fallen Leaf Lake, California, July 17, 1915. This is a very distinct species easily recognized by its pale upper surface closely dotted with rather large black setigerous points. 4. Macrutyhis dorsalis n. sp. Clear lemon yellow; membrane and a linear dorsal line black. Length 33^ mm. to the tip of the membrane. Head as in the foregoing species, nearly \ ertical. Vertex scarce- ly flatteneci; front strongly convex, especially anteriorly. Clypeus 8 Journal of Entomolopy and Zoology very prominent, its base deeply incised. Eyes rather small, viewed from the side o\al, reaching hardly below the middle of the side of the head. Antenn;c short, basal joint scarcely surpassing the cly- peus; second a little more than twice the length of the first; third and fourth together a little longer than the second. Pronotum short, its carinate sides feebly concavely arcuated, the hind margin depressed, nearly covering the basal lobe of the scutcllum. Upper surface sparsely clothed with cleciduous black hairs. Color, a pale lemon-yellow, sometimes tinged with green on the anterior margin of the pronotum and on the lower surface. Head more or less obscured or sometimes with a fuscous median line. Pronotum with a median fuscous longitudinal vitta, sometimes wid- ened so as to cover the callosities. Scutellum infuscated with its basal angles yellow. Closed elytra with a rather broad black com- missural vitta. Membrane black with the nervures pale at apex about the smaller areole. Apex of the tibis and tarsi black. Described from one male and four females taken by me on Ade- nostoma at Alpine, San Diego County, California, April 8, 1913, and one female taken by Mr. Fordyce Grinnell at Pasadena, Califor- nia, April 30, 1909. This species is easily distinguished by its clear yellow color with a black dorsal \itta. 5. Macrotyliis essigi n. sp. Dark green; antennie, legs and disk of the pronotum black; elytra clear greenish-yellow, the clavus, costal nervure, broad apical margin of the corium and the membrane black, the latter with yellow nerv- ures. Length 4 mm. to tip of membrane. Head a little more oblique than in the foregoing species. Vertex narrowly flattened, the front becoming strongly con\ex toward its apex; clypeus as in the allied species. Eyes small, viewed from the side oblong, reaching about half way to the gula. Pronotum long, the sides straight and scarcely carinate. Basal lobe of the scutellum well exposed. Elytra nearly parallel, a little widened posteriorly. Antenna rather short, the basal joint just surpassing the clypeus; the second over three times the length of the first; apical two together longer than the second. Rostrum long, reaching on to the base of the venter. Legs long, the hind tibia? as long as the corium. Pomona College, Claremont, California 9 Genital segment of the male very large, polished, occupying one half the length of the abdomen. Oviduct of the female long, begin- ning before the middle of the venter. Color dark green, more or less varied with black or fuscous. Ver- tex green with two minute black points at the middle; front more or less broadly bordered with fuscous. Clypeus black, the cheeks usu- ally green. Ponotum black with the lateral margins and sometimes the median line green, the callosities more or less broadly yellow. Scutellum greenish-yellow, the middle of the basal lobe black. Elytra clear greenish-yellow with the clavus, linear costal margin and apical vitta on the corium black. Cuneus entirely yellow. Membrane black, deeper beyond the areoles, the nervures conspic- uously yellow. Beneath infuscated along the middle, the genital segment black and polished. Antenns and legs black, the hind femora with a green line. Upper surface clothed with short decidu- ous black hairs. Described from two males and two females taken by Mr. E. O. Essig on chaparral growing among the hills at Berkeley, California, July 7, 1915. It gives me pleasure to dedicate this strongly marked species to its discoverer who is well known for his studies on the Aphididce and for his work in economic entomology. 6. Macrotylns Ibicolatns Uhler This and the following two species belong to a group having a more elongated body with the head subhorizontal, the pronotum much narrowed anteriorly with its sides feebly sinuated and sharply carinate as far forward as the transverse impressed line, the rostrum long, surpassing the base of the venter and the elytra parallel or slightly sinuated. The colors here are more subdued and uniform without the striking patterns we find in the preceding species. In lineolatus the color is a peculiar shade of greenish-yellow over almost the entire body. The upper surface is sparsely clothed with short fuscous hairs and is clouded with fuscous on the posterior field of the pronotum, excepting the sides and median line, on the clavus and on the disk of the corium within the principal nervure, more dis- tinct apically. These dark markings on the elytra are often nearly obsolete or they are represented mostly by blackish punctures. 10 Journal of Entomology and Zoology Cuneus pale. Membrane infuscated with a short blackish ray at apex of the areole, the nervures yellowish. Antennae black with pale incisures; the feet infuscated with the base of the femora pale. I took numbers of this neat little species about the lower end of Fallen Leaf Lake, near Tahoe, California. 7. Miicrolyhts bifnscotiis n. sp. Allied to the preceding; dull fuscous with the costal margin pale or largely pale, sometimes greenish-testaceous in the female. Length 5 mm. Head subhorizontal. Vertex scarcely flattened, the front becom- ing strongly convex anteriorly as in the typical forms of this genus, with a deep constriction at the base of the clypeus. Clypeus prom- inent, a little produced at apex as in many of our species. Eyes large, viewed from the side nearly vertical and reaching much below the middle of the side of the head. Antennae rather long; the basal joint surpassing the apex of the clypeus by one-half its length ; second two and one-half times the length of the first; the third about equal to the second; fourth flattened and about equal to the first. Prono- tum long, strongly narrowed anteriorly, scarcely half as wide before as behind; sides sharply carinate throughout, a little sinuated, the humeral angles prominent. Elytra parallel or slightly widened behind; wing cell with a hamus. Ground color pale testaceous; tinged with greenish on the prono- tum, head and beneath; shaded with fuscous, especially in the males; pronotum, excepting the lateral edges and sometimes the callosities, scutellum except the outer angles of the basal lobe, and the elytra except the costal margin, more or less deeply infuscated, sometimes becoming a blackish-fuscous; disk of the front at times infuscated, the clypeus usually black and polished. Cuneus usually pale or decolored. iVIembrane deeply infuscated with pale nervures and a small black ray beyond the tip of the areoles. Antenns black with pale incisures, often with a broad pale annulus on the second joint. Legs pale, the femora more or less dotted with fuscous; the knees, tips of the tibis and the tarsi black. Above clothed with long gray pile giving the insect a hoary aspect. Described from numerous examples taken about the lower end of Fallen Leaf Lake, California, in July, 1915. Pomona College, Clarcmont, California 11 8. Macrotyliis Irislis Uhlcr This is a dull slaty-black insect about the size of the prececiing, becoming polished beneath and on the unusually prominent clypeus. There are two minute pale spots on the vertex and there may be two more on the callosities and two on the basal and two on the apical lobe of the scutellum; the membranal nervures, basal margin of the cuneus and commissural nervure beyond the apex of the clavus calloused and white. Wing cell without a hamus. Basal joint of the antennse scarcely surpassing the clypeus, the antennal incisures and knees white. The whole upper surface is rather sparingly clothed with pale pubescence. I took numbers of this sombre looking species on the hills about Lakeside and Mussey's, San Diego County, California, during April and May, 1913. 9. Macrotyliis regalis Uhler I took three males of what I am identifying with some doubt as Uhler's regalis from Adenostoma at Alpine, San Diego County, California, In June, 1913. These are smaller than Uhler's unique female, measuring but three and one-half millimeters to the tip of the membrane; the anterior lobe of the pronotum is red like the posterior, the vertex and front have a median red vitta; the pectoral surface and abdomen are red instead of black and the membrane is infuscated with the nervures pale. Most of these differences repre- sent merely an extension of the red color which may be characteristic of the male sex. In this species the head is almost horizontal with the apex more produced than in any of our other species and the basal joint of the antennse is shorter, not attaining the apex of the clypeus. The upper surface is of an almost uniform dark sanguinous, sparsely clothed with tine pale pubescence and showing some dark markings about the callosities and along the median line of the pronotum and scutel- lum. It is peculiar in having the apical antennal joint conspicuously flattened, much more distinctly so than in our other species of the genus. New Californian Mites Nathan Banks The following new specias fofm part of an interesting collection of mites recently sent by Dr. Hilton for determination: Trombid'iiim pcrscahruni n. sp. Red. Body about one and one-half times as long as broad, sub- pyriform, broadest at humeri, broadly rounded behind. Cephalo- thorax very short, with crista reaching almost to the hind margin and there enlarged, and with a long fine hair arising from each sensilla. Eyes near lateral margin on a very short elevation. Body clothed with short, capitate hairs with roughened tips, some near the eyes are longer than the others. Among these capitate hairs are tufts of shorter spine-like hairs. Legs also clothed with similar, but mostly more clavate than capitate hairs, roughened on sides and end; some of the apical joints beneath have more slender hairs, and tarsus I. has them only on the base above, elsewhere with long, fine hairs. Leg IV. is about as long as the body, the last joint as long as the penultimate; leg I. plainly shorter than the body, tarsus L fusiform, longer than the penultimate joint and about twice as broad. Palpi rather stout, basal joints with clavate hairs above, below with simple or pectinate hairs, and similar hairs on the fourth joint. Thumb as long as third and fourth joints together, cylin- drical, rather longer than the claw. Length, L4 mm. From Claremont, California, January. Differs from T. scdhnini in having the clavate hairs on legs and palpi, and in the cylindrical thumb. Eryllir,nis posliniliis n. sp. Body dark (probably red in life), legs pale. Body about one and two-thirds times as long as broad, broadly rounded behind, as broad at hind coxa as at humeri; cephalothorax narrowed in front, crista short, swollen at hind end, one eye spot each side. Body and legs clothed with simple hairs, not very densely, and about as long Pomona CoHck'', Clarcmont, California 13 as width of basal joints of legs; tarsus I. witli shorter hairs, those below very short and dense. Leg I. about as long as body, tibia and metatarsus subequal, tarsus nearly two-thirds as long as metatarsus, and a little broader, but not greatly swollen, leg IV. plainly longer than body, the femur reaching beyond the tip of abdomen, the tibia only about two-thirds as long as the metatarsus, the tarsus hardly one-third as long as the metatarsus, and only slightly swollen. The palpi short and not much enlarged, the claw rather short and slen- der, the thumb slightly clavate, reaching beyond end of claw, and with hairs about one-half as long as the width of the joint. Length, 2 mm. From Claremont, California. Tcirsntnmus macro fiiil pis n. sp. A large species, rather sparsely bristly. Body nearly twice as long as broad, broadest at humeri ; cephalothorax tapering in front, one eye spot each sic^e close to margin and much nearer hind than front end of cephalothorax: legs long, but none of the femora as long as the cephalothorax, the tibia (penultimate joint), however, as long as the cephalothorax; body and legs with erect bristles, only a few very long ones, some on the basal joints are serrate or hairy, and the outer frontal pair, which are thicker than the others, also hairy. Claws with rows of bristles beneath; palpi very large and heavy, with two apical claws, the large one with a few teeth on inner side, hairs of thumb very short. Length, .7 mm. From Claremont, California, under rocks. Tarsntnmus termhuiJis n. sp. Bodv slightly constricted in the middle, each part slightly rounded and a little broader than long; legs long and slender, the hind femur as long as abdomen, the hind tarsus one and one-half times as long as femur; front femur about as long as hind femur; palpi long, end- ing in a slightly curved, stout spur, thumb long, but also heavy. Body and legs (except tarsi) with many very long, nearly erect bristles, two or three times as long as width of hind femur; tarsi with shorter, more appresscd hairs. Cephalothorax with two eye spots each side. 14 Jovirn.'il of Entomology and Zoology Length, .4 mm. From Claremont, California. Eiipodcs hrevipes n. sp. Body yellowish (probably red when alive), legs hyaline. Body slender, pyriform, plainly more than twice as long as broad, much the broadest at humeri, abo\e the hind coxae the sides are concave, tip broadly rounded. Cephalothorax subtriangular, two long bris- tles each side, one on humerus, and two submedian rows down the back, about six bristles near tip of body. Leg L no longer than body, femur L not as long as the width of the body, tarsus L plainly longer than penultimate joint which is no longer than the one pre- ceding it. Leg IV. not as long as the body, the basal joints not much enlarged, tarsus IV. plainly longer than penultimate joint. All legs with a few simple bristles, mostly near tips of joints. Length .45 mm. FVom Laguna Beach, California, June 8th. Pomona College, Claremont, California 15 EXPLANATION OF PLATE Figure 1. Erytlirieus posticatus ; palpus, legs \. and IV. Figure 2. TromhiJium perscabrum, crista, palpus, and hairs. Figure 3. Tarsotomus macropalpis, palpus, tarsal claws, and tip of mandible. Figure 4. Eupodes hrevipes, palpus and leg I. Figure 5. Tarsotomus lerminalis, palpus. 16 Journal of Entomology and Zoology An Interesting Basket Star From Laguna Beach The specimen here recorded was obtained by a fisherman off the coast of Laguna Beach at a depth of nearly a thousand feet. It was sent to Dr. H. L. Clark for determination and the following notes about it are quoted from his letter. The photograph here shown is \ery much reduced from the original. Basket Star from Laguna Beach. (Much reduced) "It is a remarkable example of Gori/oiiocepluilus cuoiemis (M. and T.), not previously recorded from south of San PVancisco, al- though it may be well known to Pacific coast collectors. "It is )wt the form of eucneviis described by Lyman from San Francisco as G. caryi but is a typical example of G. japonicus de- 18 Journal of Entomology and Zoology scribed by Doderlciri from Tokyo Bay. My opinion (previously published) that caryi and jiipoiiiais are synonyms is thus strongly confirmed. "It is the largest ophiuran, by far, hitherto recorded. Its disc is about 1.30 mm. across. The largest specimen I have seen hitherto is 1 15 mm. Doderlein, in his monograph, has 110 mm. as his maxi- mum measurement." W. A. Hilton. A Remarkable Pycnogonid William A. Hilton In a collection of a thousand pycnogonids obtained at Laguna Beach and nearby a single specimen of the species here described was found. This was taken near Laguna under a stone at low tide. The two-jointed proboscis, the segmented body, the long tapering legs with their peculiar spines and hairs, these and other features were distinctive. After searching through the rather extensive literature of this group it was found that few species resembled this one. Epeci- ally was the proboscis different. The genus Ascorhynchns estab- lished by Sars in 1876 seems very close to it, but there are a number of slight differences. No species in this genus is like it. The genus Eiirycyde, Schodte, 1857, as described by Sars in his great work of 1891 seems to fit this specimen exactly. The species E. hispiuia Kroyer, as described and figured by Sars seems at first to be nearly the same as the specimen at hand, but a careful examina- tion shows numerous specific differences. Sars considers this E. hispada the only species of the genus described at that time, 1891. T have found no species of this genus described since. E. hispada Kr. has been found on the coast of Greenland, Finmark, Nordland, in the Kara sea; at a depth of 50 to 191 fathoms. Eiirycyde spiiwsa n. sp. Tvpe specimen — a female in the collection of Pomona College. Total length 3.085 mm. Extent from side to side 3.6 mm. (ob- tained from a preserved specimen mounted on a slide). Collected at low tide under a rock. Two Rock Bay, Laguna Beach, Califor- nia. September, 1915. Trunk rather broad. Lateral processes long, swollen caudally. Segments of trunk plainly marked from each other. Chitin thick. Caudal segment long slender. It projects upwards at a moderate angle and bears four large hairs or spines near the end, two of these are central, two arc more lateral. 20 Journal of Entomology and Zoology The eye tubercle just in front of the ovigers, projects nearly straight up In the unmounted specimen. It bears four eyes and is pointed. One large hair and several smaller ones project from it. The proboscis is two-jointed, the basal joint is narrower and cylindrical. The terminal joint is swollen in the middle and tapers at the tip, and tapers a little less at the base. The proboscis is bent at the base of the terminal joint and the tip points backwards under the animal. In the freshly killed animal the legs and all the leg-like append- ages were easily seen from above, but in the slide the ovigers did not show from above nor do they in the figure. The chelifori are three-jointed, the terminal joint is small, slightly lobed but not chelate. The other segments are of nearly the same length but the basal one is thicker. There are a number of long spine-like hairs on the middle joint and one large one on the basal joint. The palpi are ten-jointed, the two basal joints small, the five terminal joints are also small and bear fine hairs. The ovigers are nine, possibly ten, jointed, rather larger than the first two appendages and quite a little longer than the body. In the fresh specimen this appendage looks much like a leg from above. There are two claws, the terminal larger. The terminal joints bear a number of complicated spines and knobs as shown in the figure. The legs are broail at the body and taper towards the claws. The basal joint is provided with a single large spine. The narrower second joint bears two spines. The third joint is smaller and bears no spines. The fourth joint is usually about twice the length of the last and bears five spines at the end. The fifth joint bears several spines on the shaft as shown in the figure. The sixth joint is about as long as the fifth and bears spines on the shaft as shown in the figure of the four legs. The last two joints bear only a few smaller hairs. There is one slightly hooked claw on each leg. The wide lateral processes of the body, the first angular joint of the legs, the complicated spines of the oviger and the different ar- rangement of spines on appendages and body clearly separate this species from the other members of the genus. Pomona College, Claremont, California 21 WORKS CHIEFLY CONSULTED Carpenter, G.H. 1905 The marine fauna of the coast of Irclami. Pwnogonida. Fish- eries, Ireland, Sci. inves. IV. 1893 (^n some Pycnogonida from the Irish coasts. Sci. proc. R. Dublin soc. vol. \iii. Cole, L.J. . 1914 P\cnog;onida from the west coast of North America. Harriinan Alaska Expid. Hoek,P.P.C. 1877 Ueber P\cnogoniden. Nieiierl. Arch. f. zool. Bd. 3 Taf. XV^- XVI. 1881 Report on the Pvcnogonida. Zool. of the Challenger, pt. x. 1881 Nouv'elles etudes sur les pycnogonides. Arc. d. zool. exper. et gen. vol. ix. Mei)ierl,Fr. 1898 Pvcnogonida. Den Danske ingolf-expedition. Scirs,G.O. 1891 Pvcnogonida. Den Norske Nordhavs cxped. 1876-78. ll'Uso,i,E. 1878 The Pvcnogonida of New England and adjacent waters. Rep. U. S. com. fish and fisheries, pt. vi. (Contribution from tlir Zoological Laboratory of Pomona College) 22 Journal of Entomology and Zoology Figure 1. Eurycyde spinosa n. sp. from above. Drawn by means of projectoscope from mounted specimen. X.25. Figure 2. Eurycyde spinosa n. sp. from tlie side, legs not shown. Less magnification than fig. 1. Figure 3. Right chelifor, not all of basal joint shown. X75. Figure 4. Right palpus. X75. Figure 5. Oviger from the right side. X75. Figure 6. Tip of first leg, from the right side. X75. 24 Journal of Entomolog\ and Zoology The Life History of Anoplodactylus Erectus Cole WILLIAM A. HILTON As an introiiuction to the statement of the Hfe history of this species it may be worth while to briefly review something of the literature on the subject and follow this with all that is known of our Californian or Laguna Beach forms. The fact that the males carry the eggs after laying was first determined by Cavanna in 1877. The eggs are large or smaller according to the yolk present. In Plioxichilidiinn and Tcinystylum studied by Morgan, the eggs are .05 mm., in Palciw, .25 mm. In certain species of Nymphon they have been described as large as .5 to .7 mm. in diamater, Dohrn, '81. The egg masses are one or more for each leg. In Paleiie there are only two eggs in each group, but according to Dohrn there may be a hundred or more in each bunch. In some cases both legs hold a single mass. Segmentation is complete and equal in the smaller eggs, unequal in the larger. The best account of the later development is given by Meisenheimer for Ammothea in 1902. A typical gastrula is formed by an in- growth of cells from the uniform almost solid previous stage. This gastrula however has no cavity, but later it forms into midgut and dorsal and lateral parts, the sources of the heart, muscles and con- nective tissues. Later there is a longitudinal germ band about the yolk and in this, paired thickenings appear which represent the cerebral and subesophageal ganglia, lateral thickenings mark the point of origin of the appendages. The chelifori are the first to appear. In Palciic (Morgan) the fourth leg is next, then the fifth and sixth. The third and seventh come just before hatching. Pdlciic and some other forms such as some species of Nymphon ha\ e in the larva all of the appendages of the adult, but most free larvcT are provided with three pairs of appendages. Such are called protonymphon stages. In various species these appendages differ somewhat, but in practically all, the body is similar at first. The body during early larval stages is roughly circular in outline, the 26 Journal of Entomology and Zoology first appendages are short, strong and chelate, the other two ap- pendages are more slender and may be moderate in length or very long. All appendages or only one or two may be provided with long spines near the base. Two types of protonymphon stages may be recognized, the most common such as found in species of the genera, Nymphou, Ammothea, Tanystyliim, Zetes {Eurycyde) , by Dohrn, Hoek, Morgan, Meisenheimer, Meinert and others. The genus Pycnoyontnii is in a way an intermediate type for the first appendage bears a long hair-like process, as shown by Hoek, '81, and Meinert, '98. The genera Phoxicli'tlid'titin and Auoplodactylus have long ten- dril-like extensions from the two body appendages. These larvae were first noticed by Gegenbauer in 1854, among hydroids, later by Allman '59, in a similar situation. Both of these investigators supposed that the eggs of Plio.xicliilidiiim were laid in the hydroids. Hodge in 1862 showed that it was the larva which made its way into the cavity of the hydroid polyp. Semper 1874, gives a very good outline of the life history of P. mutilatum. Adlerz in 1888 gives more detail in the larval stages of P. femonUum. A large number of others have described parasitic habits of pycnogonids besides those already mentioned. Hallez in 1905 speaks of the mutual modifications of larva' and hydroid, various degrees of para- sitism were found in different species. In one case the larvEe were from .1 mm. to .8 mm. in length in different stages, the last stage being somewhat elongate in form. Mertens in '06 found a larva in Teihys which he described as a new species of Nymphou. Loman '08 was one of the latest to consider this kind of parasitism among pycnogonids. Some earlier writers who also considered this sub- ject were Kroyer '42, Lendenfeld '83, and Strethill '63. Among the Laguna Beach pycnogonids the eggs were held by the males in from two to sixteen bunches. Pdleiie has about two eggs in two clusters. Halosoma had from six to eight small bunches. T. intermedium had usually about four. T. orhiciihire from two to four clusters. L. mdrgiiuiltts, usually four. A. spiiiosissitna about 1 1 bunches. A. califoniirus sixteen small bunches of many eggs. A. erectits sixteen. The eggs differ greatly in size in the different species. The eggs of Halosoma are the smallest yet recorded, Pomona College, Clarciiiont, California 27 .02 mm. A. crcctus are .03 mm. in diameter, //. calif oniiciis .035, A. spinosissima .0425, ./. bi-iDujuiculata var. calif. .0575, T. i)itcr- medium .06, A. tubcrcnlala .0675, /.. maryi)iatus .065, Palciie calif oDiioisis .175. All measurements were from preserved eggs. Palt'iw was found to have immature stages much as has been given by Morgan for this genus and Meinert for Pseudopalene. The larvce of Ammothella, Taiiyslyliiin, Clotenia, Lccythorliyiichus so far as determined were not provided with the long hair-like append- ages. The other genera not mentioned at this time were not ob- tained in sufficient numbers to draw any conclusions. Anoplodac- tyltis of the two species found were provided with the long append- ages in early stages. On the piles at Balboa bay, great masses of hydroids of several species may be found, the species which is most abundant seems to be Tiibularia crocea Ag. Living among these hydroids are spider crabs, amphipods and other crustaceans, molluscs, and other hy- droids. Among a mass of old tangled stems in a single location a large number of adult males of A. erectits was found bearing egg masses in all stages from the egg up to the first larval stage. Figs. 1 and 2 are drawings from such stages. This was in the first week, of September, 1915. Earlier in the same year Mr. F. W. Daniels brought me some hydroids that were literally swarming with pycno- gonids. These were from the same locality. In these hydroids were found the stages shown in Figs. 3 and 4. These larva were very abundant in the digestive cavities of nearly every polyp. In some cases three or four might be found in one place. Swarming over the surface of the hydroids were the more mature stages, some small, others larger but at this particular place none of them mature. Many were such as shown in Fig. 5 with the fourth pair of legs represented by lobes at the caudal end of the body. Judging from the observations made, eggs are produced in summer and early fall; the long-armed first stage larvas come from the males at various times and as they reach the hydroids the long appendages are lost, probably by a moult and then by two distinct stages such as shown in Figs. 3 and 4, they grow in size, three pairs of legs grow out and they leave the interior of the polyps and live for a time in the immature state clinging to the gonosome or tentacles of the hy- 28 Journal of Entomology and Zoology droids. In the last of November of the same year not a single larva, immature form or adult, was found although a very thor- ough search was made of the surface and interior of the polyps and dead stems. Figs. 1, 2 and 3 are drawn to the same scale, X350. In ¥\g. 6, a number of stages from the egg to the latest larval stage is shown, all drawn at the same scale. Stage /; probably moults upon entering the polyp; as judged from the cast skins, there is probably a moult between c and a, and d and c. As shown in Fig. 3, there are little knobs left just ahead of the limb buds. These knobs are the vestiges of the whip-like appendages of the earlier stage. According to Semper these two appendages degenerate com- pletely, Adlerz believes that some vestiges of these remain and in their place the second and third limbs of the adult are formed. Meinert believes that the second and third appendages of the larva entirely disappear and the palps and ovigers are new structures. I am sure from the examination of many embryos of /i. erectus that the larval second and third appendages disappear beyond recogni- tion and that the ovigers develop after the animal is almost an adult, but 1 am not sure that the little knob which may be seen in parasitic and later stages does not represent the ovigers. If this last be true, it would be very difficult to prove that it was an entirely new structure, because it grows out from the place where the third larval organ disappears. The chelifori of the larval stages are continued directly to the adult condition. Very little of the internal structure is shown from the surface of the earliest stages. The nervous system is not shown as a distinct area in earliest larval stages although it is well shown and well developed in the similar stages of other larvit. It may be that the probable lack of activity may not necessitate the sharp demarkation of the brain and ganglia. Later parasitic lar\al stages show well-marked ganglia for the larger appendages and smaller ones for the caudal and cephalic ends. At the caudal end there seems to be a gradual development of the ganglia with the development of the caudal end of the animal and in some free living forms there seem to be at least two pairs of ganglia beyond the thoracic or leg ganglia. At the cephalic end it is more difficult to make accurate observations. In parasitic Pomona College, Clareniont, California 29 Stages there seem to be from one to two distinct ganglia which may be those of the ovigers and palps. In addition to these there were found from one to two isolated pairs of what were taken to be ganglia in tlie proboscis. BIBLIOGRAPHY Adlerz,G. 1888 Bidraj: rill pantopodcrnas Morf. Bihan^ till k. Sv. V^ctcn. Akad. Hand. Bd. xiii Afd. iv., No. 11. Alhnan 1859 Symnoblastic Hvdroids. Rep. Brit. Ass. Ccivtuuia, G. 1 877 Studi e ricerchc sui Picnoponidi. Pub. r. inst. di super, prat. e. di. perfez. in Frienze. Sez. di scienze fis. e. natur. p. 3-18. Dohr>i,A. 1870 Untersuchungen uber Bau und Entwicklung der Arthropoden. 2. P\'cnotroniden. Jen. Zeitsch. f. Nat. Bd. v. Die Pantopoden dcs Golfes von Neapel. Fauna u Flora Golfes Neapel. Monog. iii. 1881 Gcijcii})iiiicr, C. 1854 Zur [>ehre vom Gencrationswechsel. IL,lh-z,P. 1905 Observations sur le parasitisme des larves de Phoxichilidium chez Bouganvilla. Arch. zool. exp. et gen. 4me serie t. iii. IIoek,P.P.C. 1881 Nouvelles etudes sur les pycnogonides. Arch. zool. exp. et. gen. t. ix. Hodyc,G- 1862 Observations on a species of Pvcnogon (P. coccineum) with an at- tempt to explain the order of its development. Ann. mag. nat. hist. (.1) vol. ix. Kroycr,H. 1842 Notes sur les metamorphoses des pycnogonides. Ann. sc. nat. 2e ser. t. xvii. Le,ideiifeld,R.voii 1883 Die Larvenentwicklung von Phoxiciiilidium plumularie. Zeit. Wiss. Zool. Bd. xxxviii. 30 Journal of Entomology and Zoology Loman 1908 Die Pantopoda dcr Silioga Exp. Meisenheimer,]. 1902 Beitrage zur Entwicklungsgcschichte der Pantopoden, I Die Entw. von Ammothea cchinata Hodge bis zur Ausbildung der Larvenform. Zcit. f. Wiss. Zool. Ixxii Bd. Merteiis, H. 1906 Eine auf Tethys Icporina parasitisch lebende Pantopoden larva (N\mphon parasitica ii. sp. ). Mitt. aus. der Zoo. Stat. Neapel, xviii. Meinert,Fr. 1898 Pycnogonida. Den Danske Ingolf-Expedition. Morgan, T.H. 1891 A contribution to the embryology and phylogen\' of pycnogonids. Stud. biol. lab. Johns Hopkins Univ. Vol. v. St'mpir,C. 1874 Ueber Pycnogoniden und ihre in Hydroiden schmarotzenden Lar- venformen. Arb. Zool. Inst. Univ. Wurzburg. Bd. i. Strethilljr. 1863 On the development of P>cnogon larv:c witliin the polyps of Hy- dractinia achinata. Jour. Mic. sc. vol. iii., p. 31. (Contribution from tin Zoological Laboratory of Pomona College) Pomona College, Claremont, California 31 EXPLANATION OF FIGURES Figure 1. Embryo of J. erectus Cole X350. The embryo was taken from the female. Figure Z. Larva of .■/. erectus Cole X350. Just hatched larva with appendages straightened. Figure 3. Larva taken from the digestive tube of the hydroid. X350. Figure 4. Much later larva of A. erectus taken from the digestive tube of a hydroid. This is much less enlarged than the last. X75. Figure 5. Free living immature specimen of A. erectus, taken from the surface of a mass of hydroids. X35. Figure 6. Outline of stages in the early life history of A. erectus. All figures drawn to the same scale X50. (a) Egg, (b) just hatched larva, (c, d, e and f) parasitic stages all found at the same time in two polyps. .u Journal of Entomology and Zoology Pomona College, Clareniont, C'alituniia ii 34 Joimial of Entomology and Zoology A^ Mites From the Claremont Laguna Region The mites listed below were collected during the years 1914 and 1915, chieHy in the fall. Tliose from Claremont were for the most part collected and mounted by Miss M. Shaw, Miss P. Jahraus and Mr. F. Cox. The mites from Laguna were collected by W. A. Hilton. The determinations were made by Dr. Nathan Banks, who describes se\eral of the species as new in this issue. Immature forms were only determined to genus. 1. Piinisiliis sp. (nymph). Under leaves, Claremont. Cox, Shaw, Jahraus. 2. Rhagidia pallida Bks. Under stones, Claremont. Cox, Shaw. 3. Erythrteus sp. (nymph). Under stones, Claremont. C. S. J. 4. Tarsolomus term'nialis Bks. (this issue). Claremont, on li\'e oak. C. S. J. 5. Erythraiis aiigttstipcs (?) (nymph). Under stones, Clare- mont. J. 6. Erytlir,/'iis aiicjiistipcs Bks. Under stones, Claremont. S. 7: Bella lata Ewing. On live oak and under stones, Claremont. C.S.J. 8. Er\ttiriviis aiit/nstipcs (?) (nymph). On live oaks, Claremont. c. s. J. ■ 9. Trail! bidiiDii pcrscabriim Bks (this issue). Palmers canyon, near Claremont. C. S. J. 10. Erenueiis bilamellatiis Hall. Claremont, under leaves. J. 11. Tarsotorniis inacropalpis Bks. (this issue). Claremont, under stones. S. 12. TarsoiDiiiiis tcrinnialh Bks. (this issue). Claremont, untler stones. J. 13. Hydracnid larva (large, bright red). On Notonecta, Clare- mont. H. 14. Iropoda sp. (nymph). Dark brown, closely massed on Sco- lopendra from Claremont. H. Fall of 1913. 15. Erythr/eiis augustipcs Bks. L'mler the bark of an eucalyptus tree. Claremont. H. Fall of 1913. 36 Journal of Entomolog\- antl Zoology 16. E. puslicatiis Bks. (this issue). Under the bark of an eucalyp- tus. Claremont. H. Fall of 1913. 17. Hydracnid larva, bright red on Notonecta. Laguna Beach. H. July, 1915. 18. ParasitHS sp. (nymph). Dark reddish brown, on a large sta- phleinid beetle found about six miles from Laguna Beach. H. 19. Hydracnid larva, dark brown, found on a carabid beetle. La- guna Beach. H. 20. Uropoda sp. (nymph). Dark reddish brown, found on a carabid beetle, Laguna Beach. H. 21. Hydracna sp (?) "probably new." Banks. This large, dark brown spherical mite was found in great abundance on the pond weeds at the "Lakes," Laguna Beach. Specimens were collected in July and August, 1915. H. 22. Eiipodcs brcvipt's Bks. (this issue). Found under leaves in a canyon north of Laguna Beach. H. 2.3. Eiipodcs brcvipes Bks. (this issue). Found at Laguna Beach, under stones. H. 24. ErythriCiis sp. (lar\-a). Bright red, found abundantly on our most common phalangid. Palmers canyon. October, 1915. H. 25. Eyytlird'iis sp. (larva). F^ound abundantly on the neck folds and about the head of the common horned toad of Laguna. The hosts were collected high on the hills to the southeast of the laboratory. H. 26. Ti-omhidiiim persicibnim Bks. (this issue). Found in the fresh water of Aliso canyon, near Laguna Beach. L\)lor, bright red. H. W. A. Hilton. ( Contribul'uin from tin Zoiilngical Ltiborritory of Poiiioiui Colli gt) Summer School at Laguna Beach Once more the :ul\aiit;i \ery dark reddish-brown; wings long, stigma (which is large), and nervures piceous; apex of wings strongly dusky; b. n. falling short of t. m.; abdomen dull, only the extreme margins of the segments glistening; shape of abdomen rather long-oval, wide in middle; apical plate deeply notched; ven- ter, except at base, marked with white. Habitat: Mountains near Claremont, California (Raker; Po- mona coll. 171). A distinct little species, easily known by its color. Tt falls close to ^V. ohscurcUa Fowler, but that is larger (7.5 mm.), with legs largely yellow, including the middle and hind basitarsi, which are entirely black in mflanasoma. Nam ad a siihvii-iiialis Cocke rell. Two males from Claremont (Baker) differ a little from the type. One has small yellow spots at anterior corners of scutellum, lateral margins of mesothorax very narrowly reddish, lateral face-marks continued as slender lines part way up sides of front, and apical plate of abdomen quite broad. The other lacks the yellow patch on second ventral segment. Nnmada chilis Cresson. Two males from Claremont (Baker) are peculiar for having the apical plate of abdomen entire. One is about 9 mm. long, and has large yellow spots on the metathorax. The other is about 7 mm. long, and has the metathorax all black. ;V. civilis is one of the most variable of bees, but it appears difficult to satisfactorily define subspecies. A'^. edxvardsii Cress, is another yellow and black species found by Baker at Claremont. No mad a erytJirospila sp. n. S Length about 7 mm.; long and slender; head and thorax black, with white hair, abundant on face, pleura and sides of meta- thorax; head transversely oval; front, mesothorax and scutellum dull and rugose; mandibles simple, pellucid white at base, fulvous in middle, and dark at apex; labrum creamy-white, covered with white hair; lower margin of clypeus and lower corners of face (with a linear extension upward along orbits) creain-color ; an- Pomona Collcpc, Cl.ircniont, California 57 tenn;p very lonji;, third joint about half length of fourth; scape black; flagellum fuUous beneath, suffusedly blackened above; tuber- cles vcllow, two minute yellow dots at anterior corners of scutel- luin, and two yellow spots on postscutellum, all these markings in- conspicuous; legs black and ferruginous, some of the markings characteristic; the anterior tibial* red with a black stripe on outer side, at the end of which is a cream-colored spot; the middle femora red in front, with a large black basal patch; the middle tibis red with a broad black band on outer side, and an apical cream-colored spot in front; the hind knees creamy-white; tegula? ferruginous; wings reaching about to end of fourth abdominal segment, dilute brownish with a large clear patch in the subapical field; stigma dark, dusky red; b. n. going a little basad of t. m. ; abdomen long and narrow, dull ferruginous, the segments with broad dark basal bands; segments 1 to 4 with large (largest on second) lateral creamy-white patches, the first two short and broad, the other two transversely elongate, each having upon it a clear red spot; fifth segment with the pale patches almost joined in middle, sixth with a broad pale banci covering nearly all the surface; apical plate ilccply notched; \'enter ferruginous with whitish and dusky mark- ings. Ffiihiiiit: Claremont. California {Baker; Pomona coll. 172). A distinct little species of Nomada s. str. The abdominal mark- ings suggest N. crotchii Cress., the male of which is not known, but the male of N. crntrhii niqrior differs from erythrospUa so much in form and face-markings, that we can hardly refer the latter to rroliliii. In N. crotchii the first r. n. joins the second s. m. far bcvond the middle, but in crxthrospihi it joins it at the middle. N. mnrgineUa Ckll., is allied to .V. erythraspihi, but the antenna are quite different. Nniiuulii ndontncera sp. n. $ Length a little over 7 mm.; rather robust, head and thorax black, densely rugosopunctate, but the large punctures of the meso- thorax glistening; hair of head and thorax above pale fox-red, beneath dull white; head transversely oval; mandibles simple, yel- low, red at apex; labrum yellow, not dentate; clypeus (except nar- row upper margin) and lateral marks yellow, the latter extending 58 Journal of Entomolc)i;\ and Zoology iifiward as rather narrow hands to ahoiit level of antenna?; scape stoLit, cntirelv yellow in front; third antennal joint much shorter than fourth, hut more than halt its length; flagellum thick, bright ferruginous beneath, black abo\e. the joints conspicuously dentic- ulate; tubercles yellow, but thorax otherwise all black; anterior cox;e unarmed; legs mainly red, but anterior and middle femora yellow in front, anterior femora black beneath, middle femora black behind except at apex; hind femora black, with the knees red, and a yellow spot at apex in front; hind tibis suffusedly blackish behind; teguhr light ferruginous; wings ample, dusky at apex, stigma clear red: b. n. going a little basad of t. m. ; first r. n. joining second s. m. well beyond middle; abdomen bright ferruginous marked with Mack and bright yellow; first segment black with a broad red band on which are two obscure dusky spots; all the segments with fuscous hinil margins, second and third segments Intense black at base; second to fifth segments laterally with yellow spots, very large on second, successively smaller on the others; sixth segment red; apical plate strongly notched; \enter with two yellow spots on second segment. IJdhitat: Mountains near Claremont, California {Raker; Po- mona coll. 168). Allied to .V. iDidiildt'nuntis Cktl., but easily distinguished by the scutellum, which is not prominent or bigibbous, anil by many details of the coloration. Also related to .V. deiil'n- iihita Rob. .V. clegaiittthi Ckll. was also taken by Baker at Claremont. Exonuilopsis vcliitiniis sp. n. ? Length about 9 mm.; black, with a rather long, not sub- globose, abdomen; head broad, facial quadrangle broader than long; eves gra\-; blade of maxilla broad to end, the inner half ( longitiulinally) pallid: labrum densely co\ered with pale ochreous hair; clypeus densely rugosopunctate, the lower margin dark red; face and front with long dull white hair; \ertex smooth and pol- ished; flagellum bright chestnut red beneath, except at base; thorax with pale ochreous-tlnted hair; mesothorax polished, shining, with scattered punctures, only hairy at front and sides, and narrowly on hind margin: scutellum with similar sculpture and hairy border, but more closely punctured, and some short black hairs bordering Pomona CoIIckc Claremont, California 59 the disc; base of metathorax roughened but glistening; legs densely hairy, the hair pale ochreous-tinted; hind tibia* and basitarsi with a \ery broad loose scopa, hair on inner side of hind basitarsi pale ferruginous; teguls piceous; wings rather short, faintly grayish, with a milky appearance in certain lights; greater part of abdomen densely covered with felt-like very pale ochreous pubescence, but apex with pale ferruginous; base of second segment with the hair so thin as to leave a dark band; first segment bare in middle, finely punctured; hind margin of first segment (tegument) broadly red- dened, and the second and third the same, only in these the color is hidden by the pubescence: venter with bands of red-golden hair alternating with pale. Htihitot: Claremont, California (Bnkcr; Pomona coll. 153). \'erv like Melissodes steanisi Ckll., which is to be called Exnvia- lopsis Stearns!, but readily distinguished by the shorter and rela- tively broader marginal cell, the well though finely punctured disc of first abdominal segment, and the much shorter third antennal joint (length 480 microns in stearnsi, 350 microns in vchithuis) . The apical plate of abdomen is much broader than in stearnsi, with straight sides. Both species look like some Xennglossndes, from which the most conspicuous superficial distinction is the bare pol- ished disc of mesothorax. A second specimen of E. veliitinus bears the number 147. Exomalopsis mehintiriis sp. n. 9 Length about 8 mm. ; black, abdomen oblong; light hair ochre- ous-tinted dorsally, dull white below; head broad; eyes pale grayish- green; mandibles red in middle; clypeus densely and strongly punct- ured; face and front with gravish-white hair; vertex shining; flagel- lum dusky ferruginous beneath except at base; mesothorax and scutellum with sculpture and arrangement of hair as in E. veluti- iiiis; legs with long pale hair, the copious scopa of hind legs wholly pale; a black brush at end of hind basitarsi; tegula? piceous, wings faintly dusky; first abdominal segment with long pale hair, the broad hind margin bare except at sides, where there is a dense patch of hair, extreme margin (tegument) pallid; segments 2 to 4 with very broad dense felt-like ochreous hair-bands, the basal part of the segments exposed and appearing black; fifth segment and 60 Journal of Entomology and Zoology ;ipc\ tlcnsely co\crcd with brownish-black hair, but there is a tuft of Hght hair on each side beneath. Hdhilal: Claremont, California (linker: Pomona coll. 148). This looks like .1 iillKiplinriilii bninni Crawf., but is at once separ- atetl by the roui^hened disc of first abdominal segment, the black liair at end of abdomen, and the minute dark stigma; there is evi- dently no real aflinit}'. Mcllssodcs pyujithra Cresson, from the description, is apparently an Jiilliophonihi or E.xuniialop.us; indeetl the description might well apply to J. bnineri. E. •vcliitiinis and E. vwhuiiinis are not typical Exotnahpsis. The genus as at present understood contains some rather diverse ele- ments. Bomhonu'lrctii mtinthita (Viereck) Viereck described this as a variety of B. separata, but it seems to be a distinct species. A female from Claremont (Baker; Po- mona coll. 162), has the spots on third and fourth segments quite large and quadrate, and there are small spots on the fifth. Cnelinxys niegatrieha sp. n. c'J Length about 11 mm.; black, with bright ferruginous legs (the femora dusky beneath) and rather dark red tegula^; no red on abdomen, above or below; mandibles dark red subapicallv; face and front densely covered with long white hair; antenna- black, third joint distinctly longer than fourth; vertex with very large punctures, which laterad of the ocelli are distinctly separated, leaving inter- spaces equal to the si/e of punctures: eyes pea-green, with very long hair; mesothorax and scutellum densely and very strongly punctured, middle of mesothorax with little longitudinal ridges; scutellum rounded behind, teeth at sides long, finger-like, slightly incurved: pleura and metathorax covered with long shagg\' white hair; anterior coxa? with strong spines; anterior trochanters and femora with much white hair beneath : spurs red; wings clear, the apical margin broadly dusk\-: abdomen with white hair-bands at apices of segments; dor- sum and sides of first segment closely punctured; second and third segments with very deep trans\-erse impressions, and strongly punc- tured, the ridge just behind the impression with sparse punctures; Pomona College, Clarcmont, California 61 fourth and fifth segments with large triangular elevated areas, which are rather sparsely punctured; fifth segment with a small tooth on each side; sixth with dense white hair at base, at each side a long sharp tooth, the apical lobes far apart, each with two teeth, the upper short, little more than a salient angle, the lower long, flattened, rounded at end, divergent; fourth ventral segment not emarginate. Habitat: Claremont, California {Raker; Pomona coll. 195). T wondered whether this could be the undescribed male of C. coquil- Ictli Crawf., but it is larger than the male of that species would probablv be, there are no hair bands bounding mesothorax or scutel- lum posteriorly, the vertex is not entirely rugose, and the abdomen is without red. From C. novomexicana it is easily known by the hair on eyes being more than twice as long. By the long hair on the eyes it resembles C. rihis kincaidii Ckll., which has black legs, and the apical teeth of abdomen closer together and almost parallel. Coelinxys angitlifera sp. n. 9 Length about 11.5 mm.; black, strongly punctured, with white hair; lower margin of clypeus angularly produced and sloping a little outward; knees, tibias and tarsi dark red, the tibi.T with a strong blackish suffusion. Very close to C. hanksi Crawf. (from Virginia), differing thus: teeth at sides of scutellum long; no band of white hair in scutello-mesothoracic suture; mesopleura? with long hair (not very dense) all over; last ventral segment not so much extended beyond last dorsal. Except for the clypeus, it much resembles C. moesta Cress., differing in the much longer teeth at sides of scutellum, and much larger punctures at base of penultimate ventral segment. S Length about 8 mm.; face and front densely covered with white hair; anterior coxa^ with well-developed spines; legs darker, the tibiaj mainly blackish; fifth abdominal segment with a short spine on each side; sixth with a long spine on each side, and the apical lobes each with two spines, the upper much shorter than the lower; no median spine; fourth ventral segment entire. In my table of male Cnrlinxys (Canad. F.ntom., 1912, p. 170) this runs to C. angelica Ckll., the female of which is very different from C. angitli- fera. 62 Journal of Entomolog)' and Zoology Habitat: Claremont, California {Baker; Pomona coll. 195). The female is the type. Were the insects not separated by the whole breadth of the continent, I should suppose this a race of C. banksi. C. no-comcx'uuvia (Ckll.) was also taken by Baker at Claremont. Xenoglossa angelica Ckll. Claremont (Baker; Pomona coll. 145.) Tetralnnia robcrtsoni Ckll. A female from Claremont (Baker; Pomona coll. 153) agrees with one from Garrison, N. Y. Can there be any error in the local- ity label? Ceratiua neomexicana punctigena subsp. n. 9 Length about 8 mm.; differs from t^'pical ueomexicaua by the cheeks, which are strongly and quite closely punctured, except a narrow band along orbits. The wings are strongly reddened, and the mesothorax is sparsely punctured anteriorly. It is known from the superficially similar C. tejnneiisis Cress, (which Baker obtained at Claremont) by the green (rather than blue) color, the white tubercles, and the strongly puncturetl cheeks. Habitat: Mountains near Claremont (Baker; Pomona coll. 174). Baker also took C. acantha Prov. and C. arizniioisis Ckll. at Claremont. Aiithidiiim angehiriim Titus Both sexes were taken by Baker at Claremont, Calif. The male, not described by Titus, runs to J. palliventre in my table in Bull. So. Calif. Acad. Sci., 1904, p. 57. It differs from the insect there re- ferred to pallivcntre by the bright chrome yellow markings and the distinct rounded excavation on each side of median spine at apex of abdomen. The clypeus and large cuneiform lateral marks are entirely yellow. The female has yellow stripes on tibi<-e, not men- tioned by Titus. J. iUustrc Cress, and J. tricnspidtini Prov. were also taken by Baker at Claremont. Diaiilhidiinn provainJicri Titus This is the species which I recorded as D. consimile (Ashm.) in Bull. So. Cal. Ac. Sci., 1904, p. 5. A specimen of true consimile Pomona College, Claremont, California 63 was collected by Baker in the mountains near Claremont. The males may be separated thus: Outer face of hind tibiic with a large black mark; yellow band of scutellum broadly interrupted in middle; median tooth at apex of abdomen black at end provancheri Titus. Outer face of hind tibia entirely yellow; yellow margin of scutel- lum not interrupted; median tooth at apex of abdomen long and entirely yellow consimile (Ashm.) A male with pale markings, collected by Grinnell in the San Gabriel Mts., has the hind tibiae as in provancheri, but the light band on scutellum, though narrow, is entire, and the median tooth at end of abdomen is rather brown than black at end. This is referred to proiancheri, but it may be that the two names represent extremes in the variation of a single species. Triepeolus ancoratiis sp. n. 9 Length about 8 mm., with ochreous markings and red tegulte and legs. Very near to T. callopus Ckll., but smaller; mesothorax with two broad bands and margin with ochreous pubescence, leav- ing only an anchor-shaped black area; cheeks and front densely covered with pubescence; antenns red, dusky above, especially the hind margins of joints; pleura with no bare patch. The mandibles, labrum, lower margin of clypeus and apex of abdomen are red, as in T. callopus. The black transverse band on first abdominal seg- ment is completely isolated by dense ochreous pubescence; the black on second segment forms a very acute angle at sides. The last \entral segment is turned down at end. Habitat: Claremont, Calif. (Pomona coll. 155). Certainly very near to T. callopus, but quite distinct by the characters indi- cated. Collected by Baker. Triepeolus callopus Ckll. One of each sex comes from Claremont {Baker; Pomona coll. 157, 158). The male is new. I give new descriptions, based on these specimens. 9 Length about 7.5 mm.; black, with clear red legs (but spurs of middle and hind legs black) ; clypeus, labrum, mandibles (except apex), tubercles, tegula (except hyaline margin) and apex of abdo- 64 Journal of Entomology and Zoology men also red; light markings dorsally pale creamy, ventrally white; head broad; clypeus minutely granular; antenns red strongly suf- fused with blackish, apex of scape and base of flagellum brighter red; third joint shorter than fourth; front and vertex more or less striate; mesothorax very densely and minutely punctured, with two parallel bands of pale ochreous hair, a spot of hair at each posterior corner, and a band in scutello-mesothoracic suture; pleura with a large bare densely punctured patch; scutellum rather strongly bilobed; axillar teeth very short; wings somewhat dusky, brownish; abdomen with broad, continuous light ochreous bands on segments 1 to 4, that on first notched in middle anteriorly; black area on first segment a broad transverse band; light band on second seg- ment with a large oblique lobe (directed mesad) laterally, giving the outline of a scythe; modified apical patch rounded; last ventral segment curved downward at end. S Clypeus all black; scape black; flagellum dusky reddish, with- out any bright red; face with dense white hair; tubercles black; pleura with a bare patch just below wings, but the lower bare patch small and indistinct; femora black, with red knees; hind margins of second and following abdominal segments brownish; apical plate extremely narrow. Crustacea From Lacuna Beach The following notes are on Crustacea collected by general and special students during the past several years. In cases where the forms were especially valuable or rare the name of the collector is indicated. Most of the specimens here recorded were collected during the past two years, a few earlier ones are also included in this report. Those marked U.S.M. were determined for us by the United States National Museum at Washington. The photographs are by Robbins, drawings by Baillard and Macdonald. Ciilluintissa lunginuDUJ Stimp. These "ghost shrimps" are fairly common under stones in tide pools. The median prominence of the front subacute, cornea behind middle of eye stalk. Cheliped of male elongate. Carpus nearly twice as long as broad (Fig. 14). C. calif ornieusis Dana, U.S.M. Similar to the other species in general, but the exact distribution of each not yet determined. Specimens of this species were taken at Balboa bay by Mr. Daniels. These showed red in the center of the body and yellow at the sides due to the internal organs showing through. According to Rathbun there are the following differences from the other species: "Median prominence of front rounded; cornea in middle of eye-stalk; large cheliped of male very broad, the carpus very little longer than broad, but longer than palm." Those we have found are smaller than the large of the other species. Pel gurus liirsiiliuscultis Dana, U.S.M. This small hermit crab was found in the tide pools. It was col- lected by La F'ollette, Macdonald, Hilton and others. Speckled and banded legs. P. samuelis Stimp., U.S.M. This small hermit crab was found abundantly in the tide pools. Specimens were larger than the other species as a rule. Blue legs. Paguristes bakeri Holmes, U.S.M. This large hermit crab was dredged off the coast of Laguna Beach bv Prof. A. M. Bean and W. F. Hamilton. It was found Pomona College, Claremont, California 67 living in several of the larger shells such as those of Trophon irian- gulatus Cpr and T. belcheri Hds. (Figs. 11 and 12). Lepidopa myops Stimp. We have but one specimen of this sand crab collected by L. Gard- ner several years ago. BlepliaripDcia occ'uieiitalis Randall Numbers of these large sand crabs much like the last in general appearance were taken at all times on sandy shores. Emeritu aiuilocja Stimp. This is the smaller very common sand crab. Panitl'trus biterrupttis Randall Young of the "lobster" were often found in tide pools. Alpheus {Crayon) dentipes Guerin These have been taken in sponge masses and in holdfasts. These interesting little snapping shrimps were collected a number of times especially during the last summer. When placed in aquarium jars they snapped the claws in such a manner as to make one believe the jars were cracking. The left claw open and closed is shown in Fig. 19 from Miss Macdonald's drawing. Crayon nigromaciilatiis Sm Translucent white, with small black dots, a larger dark spot on either side near the caudal end of the body. Found commonly in sandy tide pools. Betieits long'uiactylus Lock., U.S.M. This is the most common lobster-like species found in the tide pools. It is of a uniform dark red brown. B. luirfordi Kingsley, U.S.M. Found in kelp holdfasts. Pale olive green, eggs translucent green. Stout, Stafford, La P'ollette and others. Spironlocaris palpalor Osen Antennal scale longer than the telson, maxilliped without exopod. Rostrum with superior margin not strongly convex, but nearly Pomona College, Clarcmont, California 69 Straight over the eyes. Rostrum not reaching the second segment of the antennular peduncle. Rostrum reaching as far as or beyond the cornea. Upper and lower limbs of rostrum not both conv'ex. Al- most transparent, red on the thorax. Kelp holdfasts from deep water. S. picta Stimp., U.S.M. Antennal peduncle reaching the end of the antennular peduncle. Upper margin of the rostrum straight, reaching beyond the middle of the antennal scale. Greenish with oblique reddish marks. 5. ttiy/ori Stimp. Rostrum not reaching as far as the cornea. Collected sev-eral years ago Baker and Metz. mppolysmata calif ornica Stimp. Irregular nearly longitudinal red stripes. These are found quite abundantly in the tide pools. Pahemoneh-s hiltoni Schmitt (MSS) U.S.M. These probably occur off Laguna beach although the specimens described by Schmitt were collected Stout and Stafford at San Pedro. BRACHYURA Randallia ornata Randall These beautiful crabs usually came to us from deeper water, but one was obtained from Balboa bay (Fig. 8). Epialliis productus Randall, U.S.M. The common kelp crab was found at all times (Fig. 16). E. HuttaUii Randall, U.S.M. This was the largest kelp crab which we obtained. Fig. 9 is from a smaller specimen than that sent to Washington. E. bituberculattis Milne Edw. forma minima Lockington, U.S.M. Only one specimen collected at low tide by Hilton. Fig. 17, re- drawn from Miss Ballard's color drawing, shows the position of the lighter spots on the dorsal surface. 70 Journal of Entomology and Zoology Pomona College, Claremont, California 71 J.oxorhxiichiis grandis Stitiip. A number of these large deep water forms come in every year. Fig. 18 is from Miss Ballard's drawing of a fairly perfect specimen. L. crispdiiis Stimp. One specimen of this moss crab was dredged just off shore by Prof. A. M. Bean and W. F. Hamilton (Fig. 3). CychixantliDps uovcmdciilatiis Lock, U.S.M. Fig. 2 of a small one. Fig. 1 larger. These rather large crabs with the dark tipped claws were sometimes taken inshore at low tide. CcJHcer aiitoDiariiis Stimp. Fig 4. U.S.M. FountI under the same conditions as the one just mentioned. Pihimuiis s put ohir stilus Lock. One poorly preser\-ed specimen we took to be this species (Fig. 5). Hetcrocrypta nccidoitalis Dana Our specimen is from Hermosa Beach. Others have been re- ported from San Diego. We may yet find it at Laguna (Fig. 7). Pdchyijrapsus crassipcs Randall The shore crab is found in great abundance on any rocky shore or in the nearer tide pools (Fig. Ifl). LophnpdHopciis hiuitli/i Rath., LT.S.M. The young of these were often found in masses of Polyzea under rock ledges. A young male was marked as follows: white claws with dark tips, last legs white, other legs and body dark red. A young female had red claws, hind legs white, body darker. Another young male was white. /.. leucovtaiius Lock. Adults of these foinnl under stones measured 14 nmi. across. Young were found under rock ledges among alg K ^^^ ■^.— -:: •~•=•^tr»^^.., - ^-.^j^ ^,M^^''"' '"■•■"■* s Mt'lriJiniii d'unttJiiis Ellis. A fine specimen of this species was brought in by a fisherman from about a 500-foot depth. The fish-hook had caught on its side and the animal did not live many days. It was attached to a chunk of rock with some coral skeletons. This rock fragment to which it clung weighed about ten pounds. Photograph 1-5 natural size. (Fig. 1.) Biinodiiclis xanthnqruunmua Brandt. These common anemones are abundant on almost every bit of rocky shore. They differ greatly in size and coloration. Many of Pomona College, Clareniont, California 91 those inshore and often uneo\ered at low tide have hits of rock or shell fragments clinging to them, apparently for protection against crabs and possibly other enemies. These smaller inshore specimens are usually of a light-brown color. Larger individuals are found in the deeper tide pools, where they are always covered with water. These, as a rule, do not have stones attached to them. The common shore crabs often retreat under the outspread tentacles of these 92 JouriKil (if Eiitomolotjy and Z