*** START OF THE PROJECT GUTENBERG EBOOK 48122 *** Transcriber Note Emphasized text is denoted as: _Italic_ and =Bold=. The female symbol is displayed as [F]. VOLUME NINE NUMBER THREE ======================================================================== JOURNAL OF ENTOMOLOGY AND ZOOLOGY SEPTEMBER, 1917 PUBLISHED QUARTERLY BY POMONA COLLEGE DEPARTMENT _of_ ZOOLOGY CLAREMONT, CALIFORNIA, U. S. A. ======================================================================== CONTENTS Page List of Bees from Claremont-Laguna Region--_Henry Bray_ 93 A Partial List of the Mammals of the Claremont Region--_Leon L. Gardner_ 101 A Preliminary List of Shells from Laguna Beach and Nearby 107 A Reconstruction of the Nervous System of a Nemertian Worm--_W. A. Hilton_ 119 Entered at Claremont, Cal., Post-Office Oct. 1, 1910, as second-class matter, under Act of Congress of March 9, 1879 Journal of Entomology and Zoology EDITED BY POMONA COLLEGE, DEPARTMENT OF ZOOLOGY _Subscription_ $1.00 to 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 entomologists and zoologists. Notes and papers relating to western 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 typewritten 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. 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Address all communications to The Journal of Entomology and Zoology William A. Hilton, Editor Claremont, California, U.S.A. List of Bees from Claremont-Laguna Region HENRY BRAY Through the kindness of Prof. T. D. A. Cockerell and several others I have been able to get large numbers of our local bees determined. The basis of the work was the extensive Cook-Baker collection of the college with additional material of my own and others. Many of the species here listed have been collected by me and others, but unless not represented in the original college collection it is not noted in the list. So far as the relations of bees to plants has been noted by me it is given in the list. Many other species remain to be determined and only a beginning has been made in respect to the relation of the bees to plants. BOMBIDÆ _Bombus sonorous._ Say. Det. Vier. Claremont, Cal., Baker. April, Fl., Nemophila. _Bombus californicus._ Sm. Det. Vier. Claremont, Cal., Baker. May, Fl., Phacelia tanacætifolia. _Bombus crotchii._ Vier. Det. Cr. Claremont, Cal., Baker. May, Fl., Tar weed. ANTHOPHORIDÆ _Anthophora anstrutheri._ Ckll. Det. Ckll. Claremont, Cal., Baker. April, Fl., Lotus glaber. _Anthophora curta._ Prov. Claremont, Cal., Baker. April, Fl., Lotus glaber. _Anthophora urbana._ Cr. Claremont, Cal., Baker. April, Fl., Cactus and poppy. _Anthophora washingtoni._ Ckll. Det. Ckll. Claremont, Cal., Baker. _Anthophora stanfordiana._ Vier. Claremont, Cal., Baker. May, Fl., Amsinckia intermedia. _Anthophora pacifica._ Vier. Mountains near Claremont, Cal., Baker. April, Fl., Lotus glaber. _Anthophora simillima._ Cr. Claremont, Cal., Baker. April, Fl., Lotus glaber. _Anthophora edwardsii._ Cr. Det. Ckll. Claremont, Cal., Baker. April, Fl., Phacelia tanacætifolia. _Mellisodes pallidicineta._ Ckll. Det. Br. from Coll. Claremont, Cal., Bray. April, Fl., Phacelia tanacætifolia. _Mellisodes maura._ Cr. Det. Br. from Coll. Claremont, Cal., Bray. May, Fl., Amsinckia intermedia. _Mellisodes pullata._ Cr. Det. Br. from Coll. Claremont, Cal., Bray. April, Fl., Phacelia tanacætifolia. _Mellisodes menuacha._ Cr. Det. Br. from Coll. Claremont, Cal., Bray. May, Fl., Phacelia tanacætifolia. _Mellisodes beltragei._ Cr. Det. Br. from Coll. Claremont, Cal., Bray. Fl., Amsinckia interm. _Synhalonia atrientis._ Smith Det. Br. from Coll. Claremont, Cal., Bray. May, Fl., Phacelia tanacætifolia. _Diadasia crassicauda_ sp. n. Ckll. Det. Ckll. Laguna, Cal., R. La Follette. _Diadasia bituberculata._ Cr. Det. Cr. Claremont, Cal., Baker. April, Fl., Cactus. _Diadasia australis rinconis._ Ckll. Det. Ckll. Claremont, Cal., Baker. May, Fl., Cactus. _Diadasia australis opuntia._ Ckll. Claremont, Cal., Baker. May. Fl., Cactus. EUCERIDÆ _Tetralonia actuosa._ Det. Cr. Claremont, Cal., Baker. _Tetralonia fowleri._ Ckll. Det. Ckll. Claremont, Cal., Baker. _Tetralonia pomonæ_ sp. n. Ckll. Det. Ckll. Claremont, Cal., Baker. _Tetralonia robertsoni._ Ckll. Det. Ckll. Claremont, Cal., Baker. MELECTIDÆ _Bombomelecta thoracicia._ Cr. Det. Cr. Claremont, Cal., Baker. April, Nemophila. _Pseudomelecta californica miranda._ Fox. Claremont, Cal., Baker. _Bombomelecta thornica._ Cr. Claremont, Cal., Baker. May, Fl., Nemophila. _Zacosmia maculata._ Cr. Claremont, Cal., Baker. _Triepeolus ancoratus_ sp. n. Ckll. Det. Ckll. Claremont, Cal., Baker. _Triepeolus callopus._ Ckll. Det. Ckll. Claremont, Cal., Baker. _Bombomelecta maculata._ Vier. Det. Ckll. Claremont, Cal., Baker. NOMADIDÆ _Nomada edwardsii._ Cr. Det. Ckll. Claremont, Cal., Baker. June, no Fl. _Nomada beulahensis._ Ckll. Det. Br. Claremont, Cal., Bray. From Coll. April, no Fl. _Nomada americana._ Kby. Det. Br. Claremont, Cal., Bray. From Coll. April, no Fl. _Nomada crotchii nigrior._ Ckll. Det. Ckll. Claremont, Cal., Baker. _Nomada civilis._ Cr. Det. Ckll. Claremont, Cal., Baker. _Nomada pyrrha_ sp. n. Ckll. Det. Ckll. Claremont, Cal., Baker. _Nomada melanosoma_, sp. n. Ckll. Det. Ckll. Claremont, Cal., Baker. _Nomada subvicinalis._ Ckll. Det. Ckll. Claremont, Cal., Baker. _Nomada erythrospila_ sp. n. Ckll. Det. Ckll. Claremont, Cal., Baker. _Nomada odontocera_ sp. n. Ckll. Det. Ckll. Claremont, Cal., Baker. _Exomalopsis velutinus._ Ckll. Det. Ckll. Claremont, Cal., Baker. _Exomalopsis melanurus_ sp. n. Ckll. Det. Ckll. Claremont, Cal., Baker. _Exomalopsis nitens_ sp. n. Ckll. Det. Ckll. Laguna, Cal., R. La Follette. XYLOCOPIDÆ _Xylocopa varipuncta._ Patt. Det. Vier. Claremont, Cal., Baker. April, no Fl. _Xylocopa orsifex._ Sm. Det. Vier. Mountains near Claremont, Cal., Baker. April, Wood. _Xylocopa californica._ Cr. Det. Friese. Claremont, Cal., Baker. April, Nemophila. MEGACHILIDÆ _Megachile pruing._ Sm. Det. Friese. Claremont, Cal., Bray. May, Fl., Cactus. _Megachile grindeliarum._ Ckll. Det. Ckll. Claremont, Cal., Bray. May, Fl., Poppy. _Megachile occidentalis._ Fox. Det. Ckll. Claremont, Cal., Bray. _Megachile frugalis._ Cr. Det. Ckll. Claremont, Cal., Baker. _Osmia erythrosmia remotula._ Des. Ckll. Claremont, Cal., Baker. _Osmia quadriceps._ Ckll. Det. Cr. Mountains near Claremont, Cal., Baker. _Osmia atrocyanea._ Ckll. Det. Ckll. Claremont, Cal., Baker. May, Fl., Amsinckia intermedia. _Osmia propinqua._ Cr. Claremont, Cal., Baker. _Osmia kincaidii._ Ckll. Det. Ckll. Mountains near Claremont, Cal., Baker. _Osmia bennettæ._ Ckll. Det. Ckll. Mountains near Claremont, Cal., Baker. _Osmia integra._ Ckll. Det. Ckll. Claremont, Cal., Baker. _Osmia cobaltina._ Cr. Det. Ckll. Claremont, Cal., Baker. May, Lotus glaber. _Osmia faceta._ Cr. Det. Ckll. Claremont, Cal., Baker. _Osmia clarescens._ Ckll. Det. Ckll. Claremont, Cal., Baker. April, Fl., Phacelia tanacætifolia. _Osmia granulosa._ Ckll. Det. Ckll. Claremont, Cal., Baker. _Osmia regulina._ Ckll. Det. Ckll. Mountains near Claremont, Cal., Baker. _Osmia ednæ_, female. Ckll. Det. Ckll. Mountains near Claremont, Cal., Baker. _Osmia playtura._ Ckll. Det. Ckll. cotype. Claremont, Cal., Baker. _Osmia hypochrysea._ Ckll. Det. Ckll. Claremont, Cal., Baker. _Osmia pumila._ Frieze Det. Cr. Claremont, Cal., Bray. May, Fl. Mustard. _Osmia cyanopoda_ sp. n. Ckll. Det. Ckll. Claremont, Cal., Baker. _Osmia cyanosoma._ Ckll. Det. Ckll. Claremont, Cal., Baker. _Osmia nigrobarta_ sp. n. Ckll. Det. Ckll. Claremont, Cal., Baker. _Hoplitis sambuci._ Titus Det. Ckll. Claremont, Cal. April, Poppy. _Hoplitina pentamera._ Ckll. Det. Ckll. Claremont, Cal., Baker. _Osmia pogonigera._ Ckll. Det. Ckll. Claremont, Cal., Baker. _Alcidamea hypocrita._ Ckll. Det. Ckll. Claremont, Cal., Baker. _Osmia melanopleura_ sp. n. Ckll. Det. Ckll. Claremont, Cal., Baker. _Anthidium maculoscum._ Cr. Det. Cr. Claremont, Cal., Baker. _Dianthidium illustri._ Cr. Det. Ckll. Claremont, Cal., Baker. _Anthidium palliventre._ Cr. Det. Br. from Coll. Claremont, Cal., Baker. _Anthidium tricuspidum._ Prov. Det. Ckll. Claremont, Cal., Baker. _Dianthidium consimile._ Ashmead Det. Ckll. Claremont, Cal., Baker. _Dianthidium robertsoni._ Ckll. Det. Ckll. Mountains near Claremont, Cal., Baker. _Anthidium angelarum._ Titus Det. Ckll. Claremont, Cal., Baker. _Dianthidium provancheri._ Titus Det. Ckll. Claremont, Cal., Baker. _Dioxys producta._ Cr. Det. Ducke. Claremont, Cal., Baker. _Dioxys pomonæ._ Ckll. Det. Ckll. Claremont, Cal., Baker. _Coelioxys megatricha_ sp. n. Ckll. Det. Ckll. Claremont, Cal., Baker. _Coelioxys angulifera_ sp. n. Ckll. Det. Ckll. Claremont, Cal., Baker. _Xenoglossa angelica._ Ckll. Det. Ckll. Claremont, Cal., Baker. ANDRENIDÆ _Andrena porteræ._ Vier. Det. Ckll. Claremont, Cal., Baker. _Andrena mustelicolor._ Vier. Det. Vier. Claremont, Cal., Baker. _Andrena prunorum._ Vier. Det. Ckll. Claremont, Cal., Baker and Bray. May, Phacelia tana. and Poppy. _Andrena mimecta._ Ckll. Det. Ckll. Mountains near Claremont, Cal., Baker. _Andrena texana._ Cr. Det. Br. from Coll. Claremont, Cal., Bray. May, Fl., Poppy. _Andrena bipuntala._ Lovell Det. Br. from Coll. Claremont, Cal., Bray. April, Fl., Phacelia tan. _Andrena cerasifolii._ Vier. Det. Ckll. Claremont, Cal., Baker. April, Phacelia tanacætifolia. _Andrena carlina_ Ckll. Ashmead Det. Br. from Coll. Claremont, Cal., Bray. May, Fl., Mustard. _Andrene osmoides_ sp. n. Cr. Det. Ckll. Claremont, Cal., Baker. _Andrena peratra_ sp. n. Prov. Det. Ckll. Claremont, Cal., Baker. _Andrena auricoma._ Sm. Det. Ckll. Claremont, Cal., Baker. _Andrena plana._ Vier. Det. Ckll. Claremont, Cal., Baker. _Andrena opaciventris_ sp. n. Ckll. Det. Ckll. Claremont, Cal., Baker. _Andrena chlorura_ sp. n. Ckll. Det. Ckll. Claremont, Cal., Baker. _Agapostemon splendens._ Friese Des. Lange. Los Angeles, Cal. _Agapostemon californicus._ Crawford. Claremont, Cal., Baker. May, Poppy. _Agapostemon radiatus._ Say. Det. Br. from Coll. Claremont, Cal., Bray. April, Fl., Daisy. _Diandrena beatula_ sp. n. Ckll. Det. Ckll. Claremont, Cal., Baker. _Diandrena chalybæa._ Cr. Det. Ckll. Claremont, Cal., Baker. _Diandrena cyanosoma_ sp. n. Ckll. Det. Ckll. Claremont, Cal., Baker. _Diandrena clarventris_ sp. n. Ckll. Claremont, Cal., Baker. _Diandrena scintilla_ sp. n. Ckll. Det. Ckll. Claremont, Cal., Baker. _Conanthalictus bakeri._ Crawford Det. Ckll. Claremont, Cal., Baker. _Conanthalictus macrops_ sp. n. Ckll. Det. Ckll. Claremont, Cal. Baker. _Augochlora pomoniella._ Ckll. Det. Ckll. Claremont, Cal., Baker. _Andrena candida._ Sm. Det. Ckll. Claremont, Cal., Baker. _Andrena angustitarsata._ Vier. Det. Vier. Claremont, Cal., Baker. _Andrena huardi._ Vier. Det. Vier. Claremont, Cal., Baker. _Andrena pallidifæva._ Vier. Det. Vier. Claremont, Cal., Baker. _Andrena cyanosoma._ Ckll. Det. Vier. Claremont, Cal., Baker. _Andrena nigripes._ Prov. Det. Vier. Claremont, Cal., Baker. _Andrena scripta._ Vier. Det Vier. Claremont, Cal., Baker. _Andrena subtristis._ Ckll. Det. Vier. Claremont, Cal., Baker. CERITINIDÆ _Ceratina neomexicana punctigena_ sub. sp. n. Ckll. Det. Ckll. Claremont, Cal., Baker. HALICTIDÆ _Halictus incompletus._ Craw. Det. Mountains near Claremont, Cal., Baker. _Halictus punctatoventris._ Craw. Claremont, Cal., Baker. _Halictus nigrescens._ Craw. Claremont, Cal., Baker. _Halictus catalinensis._ Craw. Det. Ckll. Claremont, Cal., Baker. _Halictus ligatus._ Say. Det. Craw. Claremont, Cal., Baker. _Halictus robustus._ Craw. Det. Claremont, Cal., Baker. _Halictus mellipes._ Craw. Det. Claremont, Cal., Baker. _Halictus farinosus._ Sm. Det. Craw. Claremont, Cal., Baker. _Halictus rhoptoides._ Craw. Det. Br. from Coll. Claremont, Cal., Bray. April, Daisy. COLLETIDÆ _Colletes californicus._ Prov. Claremont, Cal., Baker. _Colletes guadialis._ Sm. Det. Ckll. Claremont, Cal., Baker. PROSOPIDÆ _Prosopis episcopalis_, female. Ckll. Det. Metz. Claremont, Cal., Baker (Rhus laurina). _Prosopis coloradensis._ Ckll. Det. Metz. Mountains near Claremont, Cal., Baker. _Prosopis polifolii_, female. Ckll. Det. Metz. Mountains near Claremont, Cal., Baker. PANURGIDÆ _Panurginus atriceps._ Ckll. Det. Cr. Claremont, Cal., Baker. (_Contribution from the Zoological Laboratory of Pomona College_) A Partial List of the Mammals of the Claremont Region LEON L. GARDNER Since little or nothing has been published on mammals of this region it was deemed advisable to print a list even though very incomplete and based on preliminary and limited collecting in order to have some definite forward step in this much neglected line. Some of the mammals listed below have not been collected by us but are known to occur. Thanks are due Mr. H. S. Swaith for his kind aid in identification of some of the skins collected. Bears of course have long since disappeared but still have left their reputation among old mountaineers. The story goes that a bear, perhaps the last one, was killed at Bear Flats on the trail to "Old Baldy," hence the name. _Odocoileus hemionus californicus._ (Caton.) California Mule Deer. Fairly common through Upper Sonoran and Transition zones. They have been taken as low as the mouth of San Dimas canyon. The recently established game preserve assures an increase in the future. Already they seem to have sensed the protection for on May 19, 1916, we were surprised to find just 75 feet before us a large doe on the auto road not far above the first power house. _Ovis canadensis nelsoni?_ C. M. Merriam. Merriam Desert Bighorn. Mountain sheep have lived for years in the higher peaks above Claremont but being very shy and in inaccessible and little frequented parts have escaped attention very successfully. Rumor has it that Mountain Goats are found with the sheep but I believe this to be unfounded, having been originated probably by the sight of the smaller horned females and young. The area occupied by the sheep is a very definite one and comprises the peaks Ontario, Cucamonga, Telegraph, St. Antonio ("Old Baldy"), and Iron Mountain with their high rocky intervening ridges. Of the points mentioned the first three peaks are the favored ones. I found only a few tracks on Iron Mountain and a rumor of a pair of horns found there some five or eight years ago. "Old Baldy" being too often visited is not a frequented spot for the sheep, serving only as a connecting link to Iron Mountain. However signs around Ontario, Cucamonga and Telegraph peaks are abundant and anyone with a little patience and diligent endeavor can readily see the sheep themselves. They travel often in bands, as many as fifty and in summer keep to the highest places. Where they go in winter is as yet a mystery to me, probably lower into canyon heads for I have never found them on the top during this season. This of course is natural for these peaks practically become great ice mountains dangerous for anything to travel over. Besides grass the food consists of twigs and leaves of _Castonapsis sempewirens_, several species of _Ceanothus_, _Rhammus croceus californicus_, _Rhus trilobata_ and a parsnip _Pastinaca sativa_. _Citellus beecheyi._ Richardson. California Ground Squirrel. Abundant in all parts from brush land to 8,000 feet altitude in suitable localities. _Sciurus griseus anthonyi._ Mearns. Anthony Gray Squirrel. Very common in the transition zone. In early spring they start working on pine cones on the mountain tops, gradually coming down to more abundant supplies of food until fall finds them down in the oak belt feeding on acorns. They winter as low as Palmers canyon in some cases. _Entamias Sp._ Abundant in the pine belt and as high as the top of "Baldy." They are good climbers, exceedingly active and bursting with curiosity. _Onychomys torridus ramona._ Rhoads. San Bernardino Grasshopper Mouse. But two specimens of this carnivorous mouse were taken in a period of trapping extending over three months. Both specimens were taken on bait consisting of rolled oats and in the same place, east of Indian Hill in the brush. A good many of my specimens were more or less devoured in the traps in this locality, and I strongly suspect this mouse of the crime. Nowhere else were my mice eaten or were any grasshopper mice taken. _Peromyscus maniculatus gambeli._ Baird. Gambel White-footed Mouse. This species was one of the most common forms taken, being abundant in the brushy valley and foothills. There is a great deal of color variation in the specimens taken. _Peromyscus boylei rowleyi._ (Allen.) Rowley White-footed Mouse. No specimens were trapped in the valley. However these mice were found not uncommon at the mouth of Palmers canyon, just four miles north of Claremont, in the dry brush land. Within the canyon they were common and were taken as high as the top of Ontario peak along fallen logs. At Camp Baldy they are very common especially along watercourses and fallen logs. Indications are that they ignore zonal limits being taken well down in Lower Sonoran zone and in high transition and not necessarily near water. _Peromyscus californicus insignis._ Rhoads. Chemisal Mouse. Not common. None were taken in the valley and few in the canyons. They were not found along waterways but frequently brushy hillsides. This is a large species of mouse and was almost too much for the little "gee whiz" traps to hold. _Peromyscus eremicus fraterculus._ Miller. Dulzura Mouse. Common in the brush land of both valley and foothill, being found in the canyons also. _Reithrodontomys megalotis longicauda._ Baird. Long-tailed Harvest Mouse. Common in valley and foothill. Although partial to grassy areas (I took many in the grassy runways made by meadow mice--Microtus californicus). I found them not uncommon in the dry brush land east of Indian Hill. _Neotoma fuscipes macrotis._ Thomas. Southern Brush Rat. Common from valley to 5,000 feet in the mountains in suitable localities. I took one in the property house at the Greek theatre this June. The large nests are seen very commonly in the canyons and hillsides. _Neotoma intermedia intermedia._ Rhoads. Intermediate Brush Rat. There seems to be a curious reversal of conditions between this and the former species. Whereas this species is supposed to be taken only up to 3,000 feet, I took none _below_ 3,000, all being taken at 5,000 feet or more along fallen logs near watercourses, and the former species was limited more distinctly to the foothills which is not a typical condition. _Microtus californicus californicus._ (Peale.) California Meadow Mouse. Common in runways through the grass in damp canyons, at Palmers canyon and in other suitable localities. One was taken as high as Kelly's cabin--on Ontario peak, among fallen logs by a cold mountain stream. While setting trap in the runways I more than once caught glimpses of them darting along the aisles in the grass. _Thomomys bottæ pallescens._ Rhoads. Southern Pocket Gopher. Abundant in the valley, often doing much damage in lawns and orchards. _Perodipus agilis agilis._ (Gambel.) Gambel Kangaroo Rats. Abundant from valley to Transition zone. I found them abundant at Brown's Flats where the evidences of their digging and their holes are on every side. I have trapped them in brush country, rocky areas, open brushless places, and at the mouth of ground squirrel holes. _Lepus californicus._ (Gray.) Jack-Rabbit. Common in the valley and to a certain extent in the foothills and higher. _Sylvilagus auduboni sanctidiegi._ (Miller.) San Diego Cottontail. Abundant in the Lower Sonoran zone. Increasing each year due to the protection afforded by game laws. Considerable damage to young trees is done by cottontails and they are a great pest to the farmer. _Sylvilagus bachmani cinerascens._ (Allen.) Ashy Brush Rabbit. Fairly common in the brush. They are not swift runners and rely on escaping by hiding behind clumps of brush. This is more typically an Upper Sonoran form. _Felis oregonensis oregonensis._ (Rafinesque.) Pacific Cougar. Numberless reports are always coming in of Mountain Lions and as usual most of them prove to be unfounded. However authentic records of these beasts are not lacking. I have personally inspected a specimen shot in Cold Water Canyon not more than five years ago. Tradition has it that at one time a mountaineer was actually besieged for two days in the little cabin at Browns Flats. Lions have been seen at Browns Flats, Cattle Canyon and the north of Telegraph peak. Mountaineers tell me that they are a great deal more common in the San Gabriel drainage. The specimen which I saw was from one of the tributary canyons to the San Gabriel river. _Lynx eremicus californicus._ (Mearns.) California Wild Cat. Common in the mountains and ranging over the valley. About once a year a specimen is brought in to be skinned or identified and great stories are told about them. One of the commonest fallacies is that there are two forms in the mountains, one a "Bob cat" with short tail and ear tufts, and the other a true "Link" or Lynx with longer tail and more prominent ear tufts. It is little wonder, however, that such a notion exists in view of the fact of the great range or variations found in these animals. As for actual records of captures. In the summer of 1911 one was shot in the brushy hillsides of Laguna Canyon (Orange Co.) and brought in to the Marine Laboratory. In the spring of 1912 a [F] was shot at the mouth of San Dimas canyon and brought to the college. In December 1914 a [F] in very worn pelage was shot while crossing the Santa Ana river near Prado Beach and brought to me to be skinned. Finally while trapping for foxes in Palmers canyon in March of 1916 I took a male. _Canis ochropus ochropus._ (Eschscholtz.) California Coyote. Common in the brush land above Claremont and in the foothills. The yapping bark is a very familiar cry to any who live near the outskirts of the town and may be heard nearly any evening. Although having camped numerous times in the mountains I have never heard Coyotes above the foothill region. _Urocyon cinereoargenteus californicus._ (Mearns.) California Gray Fox. Signs of foxes in the canyons and along mountain trails are always quite common. Foeces containing seeds of manzanita berries are familiar occurrences. They are fond of fruit and are readily trapped with such bait. In March 1916 three were caught one night at the same place in Live Oak canyon. _Procyon psora psora._ (Gray.) California Coon. Coons are fairly common in the larger canyons where there is an abundance of water. I have seen their tracks in Palmers, Cucamonga and San Antonio canyons. Three were trapped this winter (1916) just above Camp Baldy at an altitude of about 5400 feet. _Mephitis occidentalis holzneri._ (Mearns.) Southern California Striped Skunk. Not very common in this region, found mostly in the Upper Sonoran zone in wooded districts. _Spilogale phenax phenax._ (C. H. Merriam.) California Spotted Skunk. Very common in valley, foothills and up to 6,000 feet in the mountains. They are fearless little creatures and will readily enter cabins in the mountains and keep the occupant awake by rattling pots and pans while scrambling around in search of food, needless to say creating an awkward situation for the host. They have been known to take up their abode underneath houses in Claremont and take the liberty of scampering around the parlor floor without regard to the presence of human beings. This was a common occurrence in a certain family I have in mind and on such occasions the unwelcome guest was gently ushered to the door without hurting its feelings and peace of mind restored to the household. They are the easiest of all animals to trap and made considerable trouble and embarrassment for me by continually blundering into traps of mine set for other game. I have found these little creatures as high as 6,000 feet in the canyons. _Mustela xanthogenys xanthogenys._ (Gray.) California Weasel. I had always been interested in weasels as to their occurrence and until this year had taken only one in town with a record of only two or three seen along the railroad track. Then in one week four weasels were given me and a record of seven others obtained, all these are from nearby orange groves and from below town along the railroad track where for a long time I have known they occurred. _Scapanus latimanus occultus._ (Grinnell and Swartz.) Southern California Mole. Moles are occasionally caught in orchards and lawns and the characteristic workings are familiar sights in the mountains up to 8,000 feet. Our specimens were all from the valley. _Antrozous pallidus pacificus._ (Merriam.) Pacific Pale Bat. I have taken several of these bats from behind pictures and in the attics of some of the college buildings. I do not know their relative abundance or distribution but they are certainly common on the campus in spring and summer. _Myotis evotis._ (Allen.) Long-eared Bat. This form also occurs in the college buildings and I believe to a certain extent in the mountains. (_Contribution from the Zoological Laboratory of Pomona College_) A Preliminary List of Shells from Laguna Beach and Nearby For a number of years past students have collected shells from Laguna Beach, these and the Bradshaw collection form the basis for this list, which includes shells not farther than ten or twelve miles up and down the coast. The earlier collections were by Mabel Guernsey and P. R. Daggs. Practically all the shells drawn and photographed are from the Bradshaw collection because the shells were in better condition. Some of the earlier specimens were determined by the United States National Museum. Suggestions and corrections were kindly made by Mrs. T. S. Oldroyd. The photographs are by Robins and Cooper. Many of the drawings are by Miss Margaret Cate. Doubtful specimens are largely omitted in this list, but a few are included and marked by a question. Plate I, reduced one-half; Plates II and III, natural size; Plate IV, ×10; Plate V, ×6. BIVALVES _Yoldia cooperi_ Sabb. Fig. 1. _Mytilus californicus_ Conr. Fig. 2. _M. stearnsii_ Pils and Raym. Fig. 3. _Septifer bifurcatus_ Rve. Fig. 4. _Modiolus modiolus_ Linn. Fig. 5. _M. rectus_ Conr. Fig. 6. _Lithophaga plumula_ Hanl. Rock borer. Fig. 7. _Pectin (Chlamys) monotimeris_ Conr. Fig. 8. _Pectin (Chlamys) æquisulcatus_ Cpr. Fig. 9. _Pectin (Chlamys) pastatus_ Sby. Fig. 10. _Pecten (Hinnites) giganteus_ Gray. Fig. 11. _Lima dehiscens_ Conr. Fig. 12. _Ostrea lurida_ Cpr. California oyster. Fig. 13. _Chama Pellucida_ Sby. Fig. 14. _Phacoides californicus_ Conr. Fig. 15. _Phacoides (Lucina california) californicus_ Conr. Fig. 15. _Phacoides nuttallii_ Conr. Fig. 16. _Cardium quadrigenarium_ Conr. Fig. 17. _Cardium (Livocardium) substriatum_ Conr. Fig. 18. _Tivela (Pachydesma) crassatelloides_ Conrad. Fig. 19. small specimen. _Chione fluctifrage_ Sby. Fig. 20. _Chione succincta_ Val. Fig. 21. _Chione undatella_ Sby. Fig. 22. _Donax lævigata_ Desh. Fig. 23. _Tagelus californicus_ Conr. Fig. 24. _Macoma nasuata_ Conr. Bent-nosed Macoma. Fig. 25. _Macoma indentata_ Cpr. Indented Macoma. Fig. 26. _Macoma inflatula_ Dall. Inflated Macoma. Fig. 27. _Samele rupium_ Sby. Semele-of-the-Rocks. Fig. 28. _Cumingia californica_ Conr. California Cuming-shell. Fig. 29. _Mya (Cryptomya) californica_ Conr. False Mya. Fig. 30. _Spisula planulata_ Conr. Fig. 31. _Spisula falcata_ Sld. (?). Falcate Mactra. Fig. 32. _Paphia staminea_ Conrad. Ribbed Carpet-shell. Fig. 33. _Paphia tenessima_ Cpr. Finest Carpet-shell. Fig. 34. _Parapholas californica_ Conr. California Piddock. Fig. 35. _Pholadidea penita_ Conr. Common Piddock. Fig. 36. _Pholadidea subrostrata_ Sby. Little Borer. Fig. 37. _Milneria minima_ Dall. Last Milner-shell. Fig. 38. _Aula (Nucula) casternsis_ Hinds. Camp Nut-shell. Fig. 39. FRESH-WATER AND LAND SHELLS UNIVALVES _Physa heterostropha_ Say. Laguna stream. Fig. 40. _Physa occidentalis_ Tryon. Aliso Lake. Fig. 41. _Limnophysa palustris_ Mull. Fig. 42. _Planorbis (Helisoma) trivolvis_ Say. Fig. 43. _Helix aspera_ Mull. Fig. 44. _Epiphragmophora_ Sp. Fig. 45. MARINE UNIVALVES _Acmaea persona_ Esch. Mask Limpet. Fig. 46. _Acmaea spectrum_ Nutt. Ribbed Limpet. Fig. 47. _Acmaea patina_ Esch. Pale Limpet. Fig. 48. _Acmaea scabra_ Roe. Tile Limpet. Fig. 49. _Acmaea incessa_ Hds. Seaweed Limpet. Fig. 50. _Acmaea asmi_ Midd. Black Limpet. Fig. 51. _Acmaea (Lottia) gigantea._ Owl Limpet. Fig. 52. _Acmaea paleacea_ Gld. Chalf Limpet. Fig. 53. _Tylodina fungina_ Gab. Fig. 54. _Gadinia reticulata_ Sby. Netted Button-shell. Fig. 55. _Crucibulum spinosum_ Sby. Cup and Saucer Limpet. Fig. 56. _Crepidula dorsata_ Brod. Wrinkled Slipper-shell. Fig. 57. _Crepidula aculeata_ Gmel. Prickly Slipper-shell. Fig. 58. _Crepidula adunca_ Sby. Hooked Slipper-shell. Fig. 59. _Crepidula nivea_ Gould. White Slipper-shell. Fig. 60. _Crepidula onyx_ Sby. Onyx Slipper-shell. Pl. II. Fig. 19. _Fissurella volcano_ Rve. Volcano Shell. Fig. 62. _Fissuridea aspera_ Esch. Rough Key-hole Limpet. Fig. 63. _Fissuridea murina_ Dall. White Key-hole Limpet. Fig. 64. _Lucapina crenulata_ Sby. Great Key-hole Limpet. Fig. 65. _Clypidella (Lucapinella) calliomarginata_ Cpr. Southern Key-hole Limpet. Fig. 66. _Megatebennus bimaculatus_ Dall. Spotted Key-hole Limpet. Fig. 67. _Turris (Bathytoma) carpenteriana_ Gab. Carpenter Turret Shell. Fig. 68. (Laguna Beach, Jahraus.) _Trophon belcheri_ Hds. Belcher Trophon. Fig. 69. (Jahraus.) _Trophon triangulatus_ Cpr. Three-cornered Trophon. Dredged off Laguna Beach. Bean. Fig. 70. _Australium undosus_ Wood. Wavy Topshell. Fig. 71. _Bullaria gouldiana_ Pisb. Gold's Bubble-shell. Many collected at Balboa much larger than the specimens shown. Fig. 72. _Haminea vesicula_ Gld. White Bubble-shell. Fig. 73. _Haminea virescens_ Sby. Green Bubble-shell. Fig. 74. _Cypraea spadicea_ Gray. Nut-brown Cowry. Fig. 75. _Trivia californica_ Gray. Little Coffee-bean. Fig. 76. _Trivia solandri_ Gray. Solander Trivia. Fig. 77. _Erato vitellina_ Hds. Veally Erato. Fig. 78. (Slightly enlarged.) _Erato collumbella_ Mke. Dove Shell. Fig. 79. _Marginella varia_ Sby. Colored Marginella. Fig. 80. _Marginella jewetti._ California Rice shell. Much like the last but white. _Olivella biplicata_ Sby. Purple Olive Shell. Fig. 81. _Olivella pedroana_ Conr. Pedro Olive Shell. Fig. 82. _Conus californicus_ Hds. California Cone. Fig. 83. _Macron lividus_ A. Ad. Livid Macron. Fig. 84. _Littorina scutulata_ Gld. Checkered Littorine. Fig. 85. _Littorina planoxis_ Nutt. Gray Littorine. Fig. 86. Turned. _Purpura (Cerostoma) nuttallii_ Conr. Nuttall's Hornmouth. Fig. 87. _Tegula (Chlorostoma) gallina_ Fbs. Speckled Turban Shell. Fig. 88. _Tegula (Chlorostoma) aureotincta_ Fbs. Gilded Turban Shell. Large umbilicus with yellow. Fig. 89. _Omphalus fuscecens_ Phil. Banded Turban Shell. Fig. 90. _Tegula veridula ligulata_ Wke. Fig. 91. _Norrisia norrisii_ Sby. Smooth Turban Shell. Fig. 92. _Thais emarginata_ Desh. Rock Purple. Fig. 93. _Acanthia lapilloides_ Conr. Pebbly Unicorn. Fig. 94. _Acanthia elongata_ Conr. Angled Unicorn. Fig. 95. _Acanthia spirata_ Blain. Fig. 96. _Murex gemma_ Sby. Fig. 97. _Murex (Tritonalia) lurida_ Cpr. Lurid. Fig. 98. _Murex (Tritonalia) gracillima_ R. E. C. S. Fig. 99. _Murex (Tritonalia) circumtexta_ R. E. C. S. Fig. 100. _Murex (Tritonalia) poulsoni_ Nutt. Fig. 101. _Epitonium hindsii_ Cpr. White Wentletrap. Fig. 102. _Epitonium crenatoides_ Cpr. Fig. 103. _Actæon puncticælatus_ Cpr. Barrel Shell. Fig. 104. _Mitra idæ_ Melv. Ida's Miter Shell. Fig. 105. _Mitra lowei_ Dall (?). Fig. 106. _Alectrion (Nassa) perpinguis_ Gld. Fig. 107. _Arcularia (Nassa) tegula_ Reeve. Cover-lip. Fig. 108. _Turris ophioderma_ Dall. Pencilled Drill Shell. Fig. 109. _Potomides (Certhidæ) californica_ Hold. California Horn Shell. Fig. 110. _Myurella simplex_ Cpr. Simple Auger Shell. Fig. 111. _Amphissa versicolor_ Dall. Joseph Coat. Fig. 112. Slightly enlarged. _Calliostoma canliculatum_ Mart. Channeled Top Shell. Fig. 113. _Polynices recluziana_ Desh (?). Southern Moon Shell. Fig. 114. under side. _Amalthea antiquata_ Linn. Ancient Hoof Shell. Fig. 115. _Amalthea tumens_ Cpr. Sculptured Hoof Shell. Fig. 116. _Fossarus fenestratus_ Cpr. Windowed Isapis. Fig. 117. _Lacuna unifasciata_ Cpr. One-banded Chink Shell. Fig. 118. _Melampus olivaceus_ Cpr. Olive Ear Shell. Fig. 119. _Janthina trifida_ Nutt. Violet Snail. Shell violet. Jahraus collection. Fig. 120. _Leptothyra carpenteri_ Pilsb. Red Turban Shell. Fig. 121. _Leptothyra baccula_ Cpr. Berry Turban. Fig. 122. _Calliostoma tricolor_ Gabb. Three-colored top shell. Fig. 123. _Haliotis rufescens_ Swains. Red Abalone. Quite common near Laguna. _Haliotis cracherodii_ Leach. Black Abalone. More common than the red. TOOTH SHELLS _Dentalium neohexagnum_ S. and P. Hexagonal Tusk Shell. Dredged off Laguna. CHITONS _Mophia hindsii_ Sby. Hind's Chiton. Fig. 124. _Mophia mucosa_ Gld. Mossy Chiton. Fig. 125. _Ischnochiton clathratus_ Rve. Fig. 126. _Ischnochiton magdalensis_ Hinds. Gray Chiton. Fig. 127. _Nuttallina scabra_ Rve. Scaly Chiton. Fig. 128. _Nuttallina californica_ Nutt. California Chiton. Fig. 129. _Trachydermon dentiens_ Gld. (Pseudodenturus). Fig. 130. _Lepidopleurus rugatus_ Cpr. Fig. 131. _Callistochiton crassicostatus_ Pilsb. Thick-ribbed Chiton. Fig. 132. _Tonicella hartwegii_ Cpr. Hartweg's Chiton. Fig. 133. SMALL SHELLS Wash Drawings by Miss M. Cate _Caecum californicum_ Dall. Common at Laguna Beach. Pl. IV. Fig. 1 ×10. _Vitrinella williamsoni_ Dall (?). Pl. IV. Fig. 2 ×10. (This specimen in the Bradshaw collection was so determined, probably at Washington.) Arch Beach, Cal., near Laguna. _Columbella chrysalloidea_ Cpr. Shell white. Pl. IV. Fig. 3 ×10. _Columbella pencillata_ Cpr. White shell, cross lines brown. Pl. V. Fig. 1 ×6. _Columbella gausapata_ Gould. Common Dove-shell. Brown mottled. Pl. V. Fig. 2 ×6. _Liotia acuticostata_ Cpr. Sharp-ribbed Liotia. Pure white. Pl. V. Fig. 3 ×6. _Seila assimilata_ Cpr. Dark brown. Pl. V. Fig. 4 ×6. _Turbonilla lammata_ Cpr. Pl. IV. Fig. 4 ×10. Light brown. (Dunkeria). _Tinostoma supravalata_ Cpr. (?). Pl. V. Fig. 5 ×6. Clear white. (Ethalia). _Callistoma tricolor_ Gabb. Pl. V. Fig. 5 ×10. _Phasianella pulloides_ Gld. Pl. V. Fig. 6 ×6. Mottled red and white. _Tritonalia barberensis_ Gabb. Pl. V. Fig. 7. _Leptothyra baccula_ Cpr. Pink to gray. Pl. V. Fig. 8 ×6. _Leptothyra carpenteriana_ Pilsb. Red Turban-shell. Pl. V. Fig. 9 ×6. _Leptothyra paucicosta_ Dall. White. Pl. V. Fig. 10 ×6. _Jeffreysia translucens_ Cpr. (?). Pl. V. Fig. 11 ×6. _Pedipes unisulcata_ J. G. Cooper. Light brown. Pl. V. Fig. 12 ×6. _Mitromorpha aspera_ Cpr. Brown. Pl. V. Fig. 13 ×6. _Vermetus anellum_ Morch. White. Pl. IV. Fig. 6 ×10. This specimen is more coiled than some others. _Cerithiopus convexa_ Cpr. Dark brown. Pl. V. Fig. 14. _Cerithiopus columna_ Cpr. Light brown. Pl. V. Fig. 15. _Turritella mesalia lacteola_ Cpr. Pure white. (No figure.) _Bithium aspera_ Gabb. Brown. Pl. IV. Fig. 7 ×10. _Turbonilla stylina_ Cpr. (?). Pl. IV. Fig. 8 ×10. _Turbonilla costanea_ Cpr. (?). Pl. IV. Fig. 9 ×10. _Anachis subturiata_ Cpr. (?). Pl. IV. Fig. 10 ×10. _Amphissa versicolor_ Dall. Pink, white, brown. Pl. V. Fig. 16 ×6. _Corbila luteola_ Cpr. Small bivalve. _Philobrya setosa_ Cpr. Small bivalve. Pl. V. Fig. 17 ×6. _Acila castrensis_ Hds. Brownish. Pl. V. Fig. 18 ×6. _Carditanera minima_ Dall. Brownish-yellow. Pl. IV. Fig. 11 ×10. _Crassatella marginata_ Cpr. Pl. IV. Fig. 12 ×10. _Lasea rubra_ Mort. Tinged with red. Pl. V. Fig. 19 ×10. _Arca solida_ Br. & Sby. (?). Pl. V. Fig. 20 ×10. (_Contribution from the Zoological Laboratory of Pomona College_) [Illustration: Plate I] [Illustration: Plate II] [Illustration: Plate III] [Illustration: Plate IV] [Illustration: Plate V] A Reconstruction of the Nervous System of a Nemertian Worm WILLIAM A. HILTON Small specimens of _Carinella cingulata_ Cole were fixed in Mercuric chloride and cut in series. A general hematoxylin stain was very satisfactory for general anatomy. For a study of the finer structure other preparations will be necessary. No attempt will be made to give a complete review of the literature relating to this group. Almost every systematic paper has something, because of the importance of the nervous system in classification and because in many cases the nervous system may be seen through the body-wall without dissection. One of the first extensive accounts of these animals which also included quite a consideration of the nervous system was McIntosh in 1874. Several of the genus Nemestes were studied and the general form of the nervous system shown. Amphipheris is shown in a similar manner with a single lobe of the brain and with the two brain commissures. Tetrastemma is shown in a similar manner. Hubrecht in 1887 has an extensive paper in which the details of several nervous systems are shown as they show in reconstructions from sections. _Eupolia girardi_ is especially well shown with its small dorsal and large ventral commissure and with three brain lobes. It is in this paper that Hubrecht makes his interesting comparison between the nemertians and cordates. In his paper of 1880 he has shown the structure and position of different parts of the nervous system of nemertians, especially of Cerebratulus of which he gives a very good figure. In this he shows a reconstruction of the brain with its chief nerves, ventral and dorsal commissures, general position of the cells, the two lobes of the brain on each side and the chief nerves. He also treats of nemertian nervous systems of many other forms, but not in so much detail. Burger in 1890, '91, has extensive papers on the nervous system of the group. He discusses not only the general form, but also the minute structure of the nervous system of a number of different types. In 1895 Burger has another important paper on this group of animals. In it he shows in some forms a marked dorsal ganglion and a ventral ganglion with the typical nerves. Burger showed that all ganglion cells are unipolar, without membranes. Montgomery, 1897, discusses the minute anatomy of the nerve cells. Coe, 1895 and 1910, considers the general anatomy of the nervous system, but nerve details are for the most part not shown. In a young _Carinella cingulata_ Cole which I have studied by means of reconstructions, I find no unusual features. The nervous system is typical of the group. The brain, however, is not very clearly made up of two lobes on each side. This may be because the specimen used was a young one. This may also be the reason why the brain is not sharply marked off from the lateral nerve cords. Figure 1 shows the brain and part of the lateral cords from the ventral side. From the two halves of the brain come the nerves to forward parts. The small dorsal commissure is shown with its usual median extension. From the larger ventral commissure come the two nerves to the proboscis, lateral to these are the nerves to the intestine, while from the ridge of the lateral cords the lateral nerves are shown. Figure 2 in the larger drawing at the right shows the nervous system as viewed from the side with the dorsal side to the left. The central core of the ganglion and cord is to indicate the position of the fiber area. The small drawings at the left show various levels of the nervous system as seen in cross section. The ventral side is up. The drawing at the top is through the brain before the commissures are reached, the next lower is through the thickest part of the brain and the lower two drawings are through one of the lateral cords. _Burger, O._ 1891 Beitrage zur kenntnis des Nervensystems der Wirbellosen. Neue Unter. über das Nervensystem der Nemertinen. Inst. a. d. Zool. Sta. Neah. 10. _Burger, O._ 1890 Beitrage zur Kenntnis des Nervensystems der Nemertinen. Zeit. Wiss. Zool. Bd. L. ---- 1895 Die Nemertinen. Fauna u. Flora d. Golfes v. Neapel. _Coe, W. R._ 1895 On the Anatomy of a Species of Nemertean (Cerebratulus). Trans. Conn. oc. ix. _Coe, W. R._ 1910 Nemerteans. Haniman Alaska Series, vol. xi. _Delage et Herouard_ 1897 Trait de zoologie concrete. Les vermidinens. Vol. v. Paris. _Haller, B._ 1889 Beitrage zur kenntnis der textur des Central-nervensystems. Heherer Wurmer. Arb. des Zoolog. Inst. Wien. T. viii, Heft. 2. _Hubrecht, A. A. W._ 1887 Relation of the Nemertea to the Vertebrata. Quart. jour. mic. Sc. XXVII. _Hubrecht, A. A. W._ 1880 Zur Anatomy und Physiology des Nervensystems der Nemertinen Nat. Ver. der k. Akad. Decl. xx. ---- 1887 Report on the Nemertia collected by H. M. S. Challenger. Rep. Sc. results H. M. S. Challenger. Zool., vol. xix. _Kemnel, J. V._ 1877 Beitrag zur Kenntnis der Nemertinen. Arb. a. d. Zool. Inst. Würzburg IV. _McIntosh, W. C._ 1874 A monograph of British annelids. Part I, Nemertineans. Ray. soc. _Montgomery, T. H., Jr._ 1897 Studies on the elements of the central nervous system of the Heteronemertini. Jour. morph., vol. xxx, No. 3. _Mosley, H. N._ 1875 On Pelagonemertes rollestoni. Ann. mag. nat. hist., vol. xv. EXPLANATION OF PLATE Figure 1. Reconstruction of the nervous system of Carinella shown from the ventral side. Explanation in text. ×75. Figure 2. Figure at the left side view of a reconstruction of the upper portion of the central nervous system of Carinella. The figures at the right are from cross sections taken at various levels. The upper and the two lower figures are from one side only. Further explanations in the text. ×75. [Illustration] [Illustration] =================================================================== The KA Binocular Microscope [Illustration] Is of great value in all biological work where low and medium powers are employed. In embryology the true stereoscopic image shows the relative position of important details. 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The mountains reach an elevation of ten thousand feet within a few miles of the college and these with the nearby ocean afford many special advantages for the study of things not in books. Special advantages are afforded by the fact that the college limits its attendance, the freshman class being restricted to two hundred applicants. The success of the college is particularly indicated by the large proportion of the graduates who proceed to advanced work in the large universities. In addition, well-manned departments of music and art afford exceptional advantages. For further information, address Secretary of Pomona College Claremont, California End of the Project Gutenberg EBook of Journal of Entomology and Zoology, September 1917, by Various *** END OF THE PROJECT GUTENBERG EBOOK 48122 ***