Jj D ) New York State College of Agriculture At Gornell University Sthaca, N. Y. Library Cornell University Libra alifornia mammals Cornell University The original of this book is in the Cornell University Library. There are no known copyright restrictions in the United States on the use of the text. http://www.archive.org/details/cu31924002876492 California Mammals ‘ Press of the SOUTHERN CALIFORNIA PRINTING COMPANY Los Angeles, Cal. SNAOEOTEL TO MIVL V SSAA MN Wart An TOGL USLLUD LN Way Caltfornta Mammals By FRANK STEPHENS Illustrated by W. J. Fenn from studies in the field Published by Ghe West Coast Publishing Co. San Diego, California 1906 @ OLAS eo 24 @ 42Y4g5™ Copyright 1906 by Frank Stephens Introduction Mammalia - Order Cete Family Balenide Physeteride Delphinide Order Ungulata Family Cervide Antilocapride Bovide Order Glires Family Sciwride Aplodontide Castoridse Muride Geomyide Heteromyide Zapodide Erethizontide Ochotonidx Leporide Order Pere Family Phocide Otaridse Felide Canidee Procyomde Ursidee Mustelidee Contents: 134 149 174 178 180 180 196 197 201 207 213 224 229 232 Order Insectivora Family Sorecide Talpide Order Chiroptera Family Vespertilionide Mollossidx Phyllastomatidx Order Primates Family Hominide Life Areas of California List of California Mammals Parts of a Skull Glossary Index 249 249 256 261 262 273 276 278 278 283 292 307 208 311 INTRODUCTION 7 Introduction The area treated of in this volume is strictly California and that part of the Pacific Ocean properly belonging to California. All the mammals described are known to have been found with- in the State or within sight of its shores. The number of species and subspecies proves to be very large. This is accounted for partly by the large extent and great latitudinal length of the State, but more by the very great variety of climate within the State, greater than occurs in any other State of the Union; grading all the way from the subtropical region of the Colorado Valley and Desert te the arctic climate of the eternal snows on the summits of the Sierra Nevada. No general work covering the mammals of this State has been published since 1857, when Bairds Vol. VIII of the Pacific Railroad Reports was issued. This did not contain the marine mammals, the bats nor man. A great advance in our knowledge of the land mammals has occurred within the last fifteen years, and some of the material obtained in this time has not yet been critically examined by systematic experts, hence we may expect further additions to the present known species, as well as more or less revision of the nomenclature. The distribution of species herein given has been checked in 8 CALIFORNIA MAMMALS. the majority of species from personal observation. I have done no field work in the northwestern part of California and but little in the northeastern part. I have had exceptionally good. oppor- tunities for observation for many years in the southern part of the State and’ I believe the statements of distribution for this part will bear close inspection. There is no “royal road to knowledge.” This saying is true of all the natural sciences and mammalogy is no exception. The beginner will find it difficult to get a start, but when one be- comes a little familiar with the general characters of the larger groups it is a comparatively easy matter to trace out a species and learn its name, which should be but a preliminary step to further study of the species, and not the end as is but too often the case. Of necessity the division into orders, families and genera are made on technical characters, and it is better for the student to master these and begin aright. I have used technical terms as little as practicable. Their moderate use admits of much greater con- ciseness of description. To avoid the use of technical terms would necessitate the use of cumbersome expressions that would greatly increase the size of this volume. For the explanation of the technical terms refer to the glossary, in front of the index. The full description of a mammal includes not only the char- acters given under the specific name, but also the characters pre- viously given under its genus, family and order; to add these each time in the specific description would be confusing as well as cumbersome. After becoming a little familiar with the sub- ject it will not be necessary to refer to these higher characters each time. A departure from recognized usage in the use of names of authorities is made for the sake of simplicity. The authority for a specific or subspecific name is given without reference to generic changes made later. The words in parentheses after the technical name are intended to be a translation of the Latin or Greek name. This translation is sometimes a free one, to give the sense of the name intended. INTRODUCTION 9 The measurements used are —“length,” the distance from the tip of the nose to the end of the skin of the tail, taken with the animal laid on its back on the scale; “tail vertebree,” taken with the dividers with one point set on the rump at the base of the tail, the tail being held at right angles to the body, the other point being placed at the end of the skin of the tail, “hind foot,” the distance from the end of the longest claw to the upper edge of the heel, the true heel being used, which in many mammals is not the termination of the sole, but in such animals as the cat, deer or dog what is popularly, but wrongly, called the knee; ‘ear from crown,” taken with one point of the dividers set on the skull on the inner (convex) side of the ear and the other at the tip of the ear. In the dental formula ‘I’? means incisor teeth; “‘C” canine; “P” premolar; ‘“M’’ molar. The number means the number of that class of teeth in one side of the upper or lower jaw, re- spectively; the last number being the total of all teeth. The standard used for the names of colors is Ridgways “Nomenclature of Colors.” The measurements are given in millimeters as being bet- ter adapted for the use of naturalists; they are practically dup- licated in inches and hundreths, in parentheses, for the use of those students who have no metric scale. The following table for the conversion of inches into millimeters and vice versa may be useful. Inch. Mm. Millimeter. Inch. P2530 I... ..0393 Be BOGS 2.....0787 Bos we FOLIB BacgwstiGet 4...101.57 4.....1574 iS. 2hoF 5....-1968 6...152.36 6. ...2362 nn LFFO 7-++ +2755 &. 203.75 8... ...3950 610022855 9+ --3543 TO... .253.94 10. . ..3937 10 CALIFORNIA MAMMALS, This book is little more than a mere dry skeleton; if it aids the student in finding out for himself or herself some portions of the life histories of our mammals I shall be pleased. I have labored under the disadvantage of being out of reach of good reference libraries. Nearly all the workers in this field have sent me copies of their papers as soon as published; without this help this volume would have been of little real value. I have made free use of all such papers, but to save space I have seldom given the authority for statements made. In many cases the facts have been condensed from several authorities into the brief- est possible statement. I would like to acknowledge by name the aid received through this and other sources but the number is very great and to mention but part would be unfair to the re- mainder. The list would include the name of practically every one who has done field work among the mammals of California, or has written on material coming from this State; hence this volume is really a compilation of all the work done on Californian Mammals, and each author or collector may consider that he has a share in whatever merit it may possess. MAMMALIA 11 California Mammals Class Mammalia. Mammals Young born alive and nourished by milk secreted in mamme ; lungs and heart contained in a thorax separated from the ab- dominal viscera by a diaphragm; heart four chambered; circula- tion complete; blood warm, with red non-nucleated corpuscles; body usually covered with hairs; mouth usually furnished with teeth; never more than two pairs of limbs, both pairs always pres- ent except in some aquatic species. Subclass Monodelphia. Anterior cerebral commissure small; corpus callosum large; episternum wanting; coracoid very feebly developed, not con- nected with a sternum; urogenital and intestinal openings not combined ; a placenta; young well developed when born. Order Cete. WHALES, DOLPHINS, PORPOISES, ETC. Fore limbs fin-like, without distinct fingers and without nails; hind limbs absent; pelvis rudimentary; no clavicles; tail widened horizontally ; neck short, the vertebrz more or less fused; nostrils opening on top of the head as spiracles; eyes small; no external ear; skin hairless; habitat marine. Cetaceans are mammals that are fishlike in form and adapted to life in oceans, seas and large rivers. Like all mammals cet- aceans breathe by means of lungs and suckle their young, which are born well developed. The only book containing full and accurate accounts of the habits of our species is the “Marine Mammals of the Northwest- ern Coast of North America,” by Captain C. M. Scammon, pub 12 CALIFORNIA MAMMALS. lished in 1874. As it is now very scarce and inaccessible to the general public I shall give considerable space to extracts from it. I have very little direct personal knowledge of this order. Suborder Mystacete. (Mustache—whale. ) No teeth present after birth; upper jaws furnished with plates of baleen (whalebone;) rami of lower jaw connected by fibrous tissue and not by a suture; olfactory o1gan developed; spiracle double. Family Baleenidee. Whalebone Whales. Lower jaw very thick and deep; cleft of mouth curved; skull symmetrical. 1. Sulphur-bottom Whale. 4. Pacific Humpback Whale. 2. Oregon Finback Whale. 5. California Gray Whale. 3. Sharp-headed Finner Whale. 6. Pacific Right Whale. BALAENID AL 13 About twenty species, divided among eight genera. The species are marine, usually pelagic. They are found in all seas but are least common in tropical seas. Owing to the difficulty of preserving the parts of such huge animals but little material has been examined by competent naturalists, and therefore but little is accurately known of their relationships. The food of Whalebone Whales is zoophytes, molluscs, crustaceans and small fish, When a quantity of these are taken inthe mouth the water is strained out through fringed baleen: the mouth being partially closed. The throat is comparatively small, the food being animals of quite small sizes. Genus Baleena Linn. (Whale.) No dorsal fin; pectoral fin short, broad and enclosing the bones of all five fingers; head very large; baleen very long, nar- row, black; cervical vertebra united; skin of throat not furrowed. Balzena japonica Gray. (Of Japan.) PACIFIC RIGHT WHALE. Large; head large in proportion; color black, occasionally spotted with white. Length about sixty feet. Arctic and North Pacific Oceans. “The color of the Right Whale is generally black, yet there are many individuals with more or less white about their throat and pectorals ,and sometimes they are pied all over. The average length may be calculated at sixty feet—it rarely attains to seventy feet—and the two sexes vary little in size. The head is very nearly one third the length of the whole animal, and the upper intermediate portion, or that part between the spiracles and ‘bon- net,’ has not that eve nspherical form, or the smooth and glossy surface present with the Bowhead, but is more or less ridgy cross- wise. Both lips and head have wart-like bunches moderately de- veloped, and in some cases the upper surface of the head and fins are infested with parasitical crustaceans. 14 CALIFORNIA MAMMALS. “The tongue yields oil like the mysticetus, but its baleen is shorter and of a coarser and less flexible nature. The average product of oil of the Balena japonica may be set down as one hundred and thirty barrels. The amount of bone ranges from one thousand to fifteen hundred pounds. “In former times the Right Whales were found on the coast of Oregon, and occasionally in large numbers. The few fre- quenting the coast of California are supposed to be merely strag- glers for their northern haunts.’” (Scammon. ) Genus Rhachianectes Corr. (Spine—Swimming. ) No dorsal fin; pectoral fin narrow, enclosing the bones of but four fingers; head comparatively small, baleen short, coarse; cer- vical vertebre free; skin of throat with two longitudinal furrows. Rhachianectes glaucus Corr. (Whitish blue.) CALIFORNIA GRAY WHALE. Size medium; color varying from light mottled gray to nearly black. Length of female about forty feet; male is smaller. Pacific coast of North America. “The California Gray Whale is unlike the species of Baleena in its colors, being of a mottled gray, very light on some individ- uals, while others, both male and female, are nearly black. Un- der the throat are two longitudinal folds, which are about fifteen inches apart and six feet in length. The eye is situated about five inches above and six inches behind the angle of the mouth. The ear, which appears externally like a mere slit in the skin, two and a half inches in length, is about eighteen inches behind the eyes and a little above it. The length of the female is forty to forty-four feet; its greatest cicumference twenty-eight to thirty feet; its flukes thirty inches in depth and ten to twelve feet broad; its pectorals about six and one-half feet in length and three feet in width, tapering from near the middle toward the ends, which BALANIDA 15 are quite pointed. It has no dorsal fin; usually the limbs of the animal vary but little in proportion to its size. The male may average thirty-five feet in length, but varies more in size than the female. “The blubber is six to ten inches in thickness. The average yield of oil is twenty barrels. The baleen, of which the longest portion is fourteen to sixteen inches, is of a light brown color, the grain very coarse. “The California Gray Whale is only found in north lati- tudes, and its migrations have never been known to extend lower than 20 degrees north. It frequents the coast of California from November to May. During these months the cows enter the lagoons on the lower coast to bring forth their young, while the males remain outside along the seashore. The time of gestation is about a year. Occasionally a male is seen in the lagoons with the cows toward the end of the season, and soon after both male and female, with their young, will be seen working their way northward, following the shore so near that they often pass through the kelp near the beach. It is seldom that they are seen far out at sea. This habit of resorting to shoal bays is one in which they differ strikingly from other whales. “In summer they congregate in the Arctic Ocean and Ok- hotsk Sea. It has been said that this species of Whale has been found off of the coast of China and about the shores of Formosa, but the report needs confirmation. In October and November the California Gray Whales appear off the coast of Oregon and Upper California, on their way back to their tropical haunts, making a quick, low spout at long intervals; showing themselves very little until they reach the smooth lagoons of the lower coast, where, if not disturbed, they gather in large numbers, passing: into and out of the estuaries, or slowly raising their col- losal forms midway above the surface, falling over on their sides as if by accident and dashing the water into foam and spray about them. At times, in calm weather; they are seen lying in the water quite motionless, keeping one position an hour or more, 16 CALIFORNIA MAMMALS. At such times the sea gulls and cormorants alight on the huge beasts. “From what data we have been able to obtain the whole number of California Gray Whales which have been captured or destroyed since the bay whaling commenced, in 1846, would not exceed 10,800, and the number which now periodically visit the coast does not exceed 8,000 or 10,000.” (This appears to have been written in 1872.) “Many of the marked habits of the California Gray Whale are widely different from those of any other species of Balzena. It makes regular migrations from the hot southern latitudes to beyond the Arctic Circle; and in the passage between the ex- tremes of climate it follows the general trend of an irregular coast so near that it is exposed to the attacks of the savage tribes in- habiting the seashore, who pass much of their time in the canoe, and consider the capture of this singular wanderer a feat worthy of the highest distinction. As it approaches the waters of the torrid zone, it presents an opportunity to the civilized whale- mem—at sea, along shore, and in the lagoons—to practice their different modes of strategy, thus hastening the time of its utter annihilation. This species of whale manifests the greatest af- fection for its young, and seeks the sheltered estuaries lying un- der a tropical sun as if to warm its offspring and promote its comfort, until grown to a size Nature demands for its first north- ern visit.” (Scammon.) , Genus Megaptera Gray. (Large—fin. ) Dorsal fin present, low or “hump” like; pectoral fin very long and narrow; head of moderate size; throat and belly with longi- tudinal furrows; baleen short; cervical vertebre free; size large. Megaptera nodosa versabilis Core. (Knotted; capable of being turned. ) PACIFIC HUMPBACK WHALE. Body short and thick; a “hump” of variable size and shape BALANIDA 17 situated similarly to the dorsal fin of other species; pectoral and caudal fins very large; color black, more or less mottled with white below. Pacific Ocean. ean “The Humpback is one of the species of rorquals that roam throughout every ocean, generally preferring to feed and perform its uncouth gambols near extensive coasts, or about the shores of islands, in all latitudes between the equator and the frozen oceans, both north and south. It is irregular in its movements, seldom going in a straight course for any distance, at one time moving about in numbers, scattered over the sea as far as the eye can discern from the masthead; at other times singly, seem- ingly as much at home as if surrounded by hundreds of its kind.. “Its shape, compared with the symmetrical forms of the Finback, California Gray and Sulphurbottom, is decidedly ugly, as it has a short, thick body, and frequently a diminutive ‘small’, with inordinately large pectorals and flukes. A protuberance, of variable size and shape in different individuals, placed on the back, about one fourth the length from the caudal fin, is called the hump. Another cartilaginous boss projects from the center fold immediately beneath the anterior point of the lower jaw, which, with the flukes, pectorals and throat of the creature, are often hung with pendant parasites (Otion stimpsoni), and on the males it is frequently studded with tubercles, as on the head. The under jaw extends forward considerably beyond the upper one. All these combined characteristics impress the observer with the idea of an animal of abnormal proportions. The top of the head. is dotted with irregular rounded bunches, which rise about am inch above the surface, each covering about four square inches of space. “Extreme length (of a male) 49 feet 7 inches; length of pectoral 13 feet 7 inches; breadth of pectoral 3 feet 2 inches; ex- pansion of flukes 15 feet 7 inches; breadth of flukes 3 feet 4 inches; length of folds on belly 16 feet; thickness of blubber 5 to 10 inches; color of blubber yellowish white; yield of oil 40 bar- 18 CALIFORNIA MAMMALS. rels; number of folds on belly 26, averaging four to six inches in width. These folds, which extend from the anterior portion, of the throat over the belly, terminating a little behind the pec- torals, are capable of great expansion and contraction, which en- ables the Humphack, as well as the other rorquals, to swell their maws when food is in abundance about them. It is proper to state that the skull and upper jaw bone of any ordinary sized animal would be about 15 feet long by 6 broad. “The usual color of the Humpback is black above, a little lighter below, slightly marbled with white or gray ; but sometimes the animal is of spotless white under the fins and about the abdomen. ‘The posterior edge of the hump, in many animals, js tipped with pure white. “The Megaptera varies more in the production of oil than all others of the rorquals. We have frequently seen individuals which yielded but 6 to 10 barrels of oil, and others as much as 75. Most of this variation may be attributed to age or sex. “Like all other rorquals it has two spiracles, and when it re- spires the breath and vapor ejected through these apertures form the ‘spout,’ and rise in two separate colums, which, however, unite as they ascend and expand. When the enormous lungs of the animal are brought into full play the spout ascends twenty feet or more. When the whale is going to windward, the influence of the breeze is such that a low bushy spout is all that can be seen. The number of spouts to a ‘rising’ is exceedingly variable ; some- times the animal blows only once, at another time up to 1§ or 20 times. “Although the Humpback is found on every sea and ocean. our observations indicate that they resort periodically, and with some degree of regularity, to particular localities, where the fe- males bring forth their young. It seems, moreover, that both sexes make a sort of general migration from the warmer to the colder latitudes, as the seasons change. They go north in the northern hemisphere as the summer approaches, and return south as winter sets in. BALAENID Au 19 “In the Bay of Monterey, Upper California, the best season for Humpbacks is in the months of October and November; but some whales are taken during the period from April to December, including a part of both months. The great body of these whales, however, are observed working their way northward until Sep- tember, when they begin to return southward; and the Bay being open to the north, many of the returning band follow its shores or visit its southern extremity, in search of food, which consists principally of small fish, or the lower orders of crustaceans. When the animals are feeding the whalers have a very favorable opportunity for their pursuit and capture. “The Humpbacks are captured with a common hand-har- poon and lance, ‘Greeners Harpoon Gun,’ and the bomb-lance, by the whaleships crew; and as they are very liable to sink when dead, every exertion is made to get the harpoon in, with line at- tached, before the bomb gun is discharged. Then if the creature goes to the bottom, a buoy is attached to the end of the line, or a boat lies by it, until the decomposition of its flesh has gen- erated sufficient gas to allow the animal to be drawn up. The length of time that elapses before this takes place of course de- pends much on the depth of the water and the solidity of the an- imals formation; some individuals remaining but a few hours on the bottom, while others will remain down two or three days at the same depth. ; “The best points for Humpback, whaling on the coast have been Magdalena, Ballenas and Monterey Bays; but since the acquisition of Alaska numerous places have been found in the bays and about the islands of that Territory, which doubtless in the future will become profitable whaling stations.” Genus Baleenoptera LarrecepE. (Whale—fin). Dorsal fin small, curved; pectoral fin small, narrow; head flat ; body slender, skin of throat with longitudinal furrows; baleen short and coarse; cervical vertebrz free. 20 CALIFORNIA MAMMALS. Balzenoptera physalus velifera Cope. (Sail bearing. ) OREGON FINBACK WHALE. * Large; color blackish above, white below. North Pacific Ocean. “A Finback picked up by Captain Poole of the bark Sarah Warren, of San Francisco, affords us the following memoranda ; length 65 feet; thickness of blubber 7 to 9 inches; yield of oil 75 barrels; color of blubber a clear white; top of head quite as flat and straight as that of a Humpback; baleen, the longest, 2 feet 4 inches; the greatest width 13 inches; its color a light lead streaked with black, and its surface presents a ridgy appearance crosswise, length of fringe to bone 2 to 4 inches, and in size the fringe may be compared to a cambric needle. “A Baleenoptera which came ashore near the outer heads of the Golden Gate gave us the opportunity of obtaining the follow- ing rough measurements; length 60 feet; from nib-end to pec- torals 15 feet; from nib-end to corner of mouth 12 feet ; expansion of caudal fins 14 feet. Its side fins and flukes are in like pro- portion to the body as in the California Gray. Its throat and breast are marked with deep creases or folds, similar to the Humpback. Color of sides and back black or blackish brown (in some indviduals a curved band of lighter shade marks its upper sides, between the spiracles and pectorals) ; belly a milky white. Its back-fin is placed nearer to the caudal than the hump on the Humpback, and in shape approaches aright angled triangle, but rounded on the forward edge, curved on the opposite one; the longest side joins the back in some examples, and in others the anterior edge is the longest. The gular folds spread on each side of the pectorals and extend half the length of the body. “The habitual movements of the Finback in several points are peculiar. When it respires the vaporous breath passes quick- ly through its spiracles, and when a fresh supply is drawn into its breathing system, a sharp and somewhat musical sound may BALANIDAt 21 be heard at a considerable distance, which is quite distinguishable from that of other whales of the same family. We have ob- served the interval between the respirations of a large Finback to be about seven seconds. It frequently gambols about vessels at sea, in midocean as well as close in with the coast, darting under them, or shooting swiftly through the water on either side; at one moment on the surface, belching forth its quick, ringing spout, and the next moment submerging itself beneath the waves, as if enjoying a race with a ship dashing along under press of sail. “Tn beginning the descent it assumes a variety of positions; sometimes rolling over on its side, at other times rounding or heaving its flukes out and assuming a nearly perpendicular at- titude. Frequently it remains on the surface, making a regular course and several uniform ‘blows.’ Occasionally they congre- gate in schools of fifteen or twenty or less. In this situation we have observed them going quickly through the water, several spouting at the same instant. Their uncertain movements, how- ever,—often showing themselves twice or thrice and then dis- appearing—and their swiftness, make them very difficult to cap- ture. The result of several attempts to capture them was as follows; from the ship one was shot with the bomb gun, which did its work so effectually that although the boat was in readiness for instant lowering, before it got within darting distance the animal, in its dying contortions, ran foul of the ship, giving her a shock that was very sensibly felt by all on board, giving her a momentary heel of about two steaks. We hada good view of the underside of the whale as it made several successive rolls before disappearing, and our observations agreed with those made on the Sarah Warren in relation to the color and the creases on the throat and breast. The underside of the fins was white also. At another time the whale died about ten fathoms under water, and after carefully hauling it up in sight, the iron ‘drawed’ and away the dead animal went to the depth beneath. Frequently we have lowered for single ones that were playing 22 CALIFORNIA MAMMALS. about the ship, but by the time the boats were in the water noth- ing more would be seen of them. ‘An instance occurred in Monterey Bay, in 1865, of five being captured under the following circumstances; a ‘pod’ of whales was seen in the offing, by the whalemen, from their shore station, who immediately embarked in their boats and gave chase. On coming up to them they were found to be Finbacks. One was harpooned, and, though it received a mortal wound, they all ran together as before. One of the gunners, being an expert, managed to shoot the whole five, and they were ultimately secured. “Their food is of the same nature as that of the other ror- quals, and the quantity of codfish that has been found in them is truly enormous.” (Scammon). Balzeenoptera acuto-rostrata davidsoni ScamMon. (For Prof. George Davidson. ) SHARP-HEADED FINNER WHALE. Small; head pointed; pectoral fins small, pointed; baleen white; color blackish above, white below. North Pacific Ocean. “The name Sharp-headed Finner is applied to this, the smal- ler species of Balzenoptera known on the coast. The only one we have examined was found dead on the northern shore of Ad- miralty Inlet, Washington Territory, by some Italian fishermen, in October, 1870, transported by them to the opposite shore and towed into Port Townsend Bay, where it was flensed on the beach. This opportunity of seeing the animal out of water was very interesting to us, for there was a mystery about its his- tory that we had been unable to solve in twelve years observa- tion, during which time we had traced it from the coast of Mexico to Behring Sea. In the strait of Sam Juan de Fuca oppor- tunities were afforded for observing its havits more closely than elsewhere. BALAIN1ID AG 23 “The length of the individual captured in Admiralty inlet was twenty-seven feet. When compared with other Balzenidze it was so small that we were skeptical whether it was an adult or not, but, upon making an examination a well developed fcetus was found in it, five and one half feet long, which dispelled all doubts as to its maturity. “The principal distinguishing features of this whale are its dwarfish size; its pointed head, which in form resembles a beak; its low, falcated dorsal fin, which is placed about two-thirds the length of the animal from the anterior extremity of its lower jaw, which is the longest; and its inordinately small, pointed pec- torals, which are marked with a white band above and near their bases, and are placed about one-third the animal’s length from its anterior extremity. The bone, or baleen, in its natural state is of a pure white, with a short, thin fringe of the same color. The number of laminz on each side of the mouth was two hundred and seventy, and the longest of these measured ten inches. The surface of the animal was a dull black above, white below. The under side of both pectoral and caudal fins was white also. “Seventy longitudinal folds extended along the throat and lower portion of the body, between and a little behind the fins, and while the outer surface of the folds was of a milky white- ness, the creases between them were of a pinkish cast, imparting the same shade to the throat as far back as the pectorals. The coating of yellowish fat that encased the body averaged three inches in thickness, and the yield of oil was about three hundred gallons. “The habits of this whale are in many respects like those of the Finback. It frequently gambols about vessels while under way, darting from one side to the other beneath their bottoms. When coming to the surface it makes a quick, faint spout, such as would be made by a suckling of one of the larger cetaceans; which plainly accounts for whalemen taking it for the young of more bulky species.” (Scammon). 24 CALIFORNIA MAMMALS. Genus Sibbaldius Gray. (For Robert Sibbald. ) Dorsal fin small, curved, pectoral fin small; head long; skin of throat with small longitudinal furrows; baleen short; cervical vertebree free. Sibbaldius sulfureous Corr. (Sulphur colored. ) SULPHUR- BOTTOMED WHALE. Largest living mammal; brown or grav above; sulphur yel- low below. North Pacific Ocean. “The largest whale found on the coast, and the largest known, is the Sulphur-bottom. Never having had an opportunity of obtaining an accurate measurement of its proportions, we can only state them approximately. Length sixty to one hundred feet. Its body is comparatively more slender than that of the California Gray. Its pectorals are proportionately small, even in comparison with the Sperm Whales which in size and shape they very nearly resemble, being short and rounded at their extremi- ties. Its caudal fin bears about the same proportion to the body as does that of the Finback, while the dorsal is much smaller and nearer the posterior extremity. Its head is more elongated than that of the Finners. Its baleen is broader at the base; the color being a jet black in several specimens that we have exam- ined, while others were of a bluish hue. “Captain Roys, of whaling notoriety, has kindly furnished me with the following memoranda of a Sulphur-bottom Whale which was taken by him while he was in command of the barque Iceland. Length 95 feet; girth 39 feet; length of jawbone 21 feet ; length of longest baleen 21 feet; yield of baleen 800 pounds; yield of oil 110 barrels; weight of whole animal, by calculation, 147 tons. “The Sulphur-bottom, in its food and manner of feeding, is like the other whales of its kind. It isa true rorqual, with folds beneath the anterior part of the animal, which are a series of fine longitudinal furrows. The color of this, the greatest whale of BALANIDA 25 the ocean, is sometimes lighter than the dull black of the lesser rorquals, in some instances it is a very light brown, approaching to white; but underneath it is of a yellowish cast or sulphur color, whence the name ‘Sulphur-bottom’ is supposed to have arisen. Its coating of blubber is unevenly distributed over its body, mas- sively covéring the top of the head, but more thinly covering the main portion of the trunk, while the posterior extremity, between the trunk and caudal fin is more heavily enfolded in the oily cover- ing than all the rest. “The Pacific species occurs at all seasons on the coasts of the Californias. During the months from May to September, inclusive, they are often found in large numbers close in with the shores, at times playing about ships at anchor in the open roadsteads, near islands, or capes, but in a general way they do not approach vessels with the same boldness that the Finback does, although we have observed them following a vessel’s wake for several leagues. The Sulphur-bottom is considered the swift- est whale afloat. and for this reason is but seldom pursued, and still more rarely taken. “On the second voyage of the Page six of these immense creatures were taken by the use of bomb-gun and lance off the port of San Quentin, Lower California, where the moderate depth of the water was favorable to the pursuit. Large numbers of them were found on this ground, where they were attracted by. the swarms of sardines and prawns with which the waters were enlivened; and the whales, when in a state of lassitude from ex- cessive feeding, would frequently remain motionless ten to twenty minutes at a time, thus giving the whaleman an excellent oppor~ tunity to shoot his bomb-lance into a vital part, causing almost instant death.” (Scammon). Dr. F. W. True, Curator, U. S. National Museum, thinks it is doubtful if this Whale is distinct from Balenoptera physalus. 26 CALIFORNIA MAMMALS. Suborder Denticete (Tooth—\Whale. ) Teeth nearly always present in the lower jaw and often in the upper; no baleen; rami of lower jaw united by a symphyseal suture; olfactory organ rudimentary or absent; nostrils combin- ing im one spiracle. Family Physeteridee. (The Sperm Whale. ) Lower jaw slender and set with teeth, usually numerous, sometimes few; upper jaw large and toothless; head large; costal cartileges not ossified; skull usually unsymmetrical. Subfamily Physeterine. Lower jaw with numerous teeth, which are held in a long groove by a strong fibrous gum-like substance; upper part of cranium quite unsymmetrical through atrophism of the right nostril. Two genera, each with one living species. They prefer warm waters and are found in all open seas except the Arctic and Antarctic Oceans. The food is squid, cuttlefish, octopus, ete. Sperm Whales are much less common now that formerly. we Sperm Whale. Genus Physeter Linnrus. (To blow.) Dorsal fin obsolete; pectoral fin short, broad; head long and deep, squarish in front, with a large internal cavity filled with oil; teeth 40 to 50; vertebree 50; most of the cervical vertebrze united. PHYSETERIDE 27 Physeter macrocephalus Linn. (Great—head.) SPERM WHALE. Blackish above; lighter below, particularly on the breast. Length of adult male from 70 to 85 feet; females much smaller, Found in nearly all seas from 56 degrees north latitude to 50 degrees south. “This, the largest of the toothed cetaceans, is known to Eng- lish and Amercan whalemen as the Sperm Whale, to the Germans as the Pottfish, and to the French as the Cachelot. It widely differs from all others of the order, both in figure and habits. The fully matured animal equals, if it does not exceed, the Bow-: head in magnitude and in commercial value. The adult female, however, is only about one-third or one-fourth of the size of the largest male. She is likewise more slender in form. “The largest males measure eighty to eighty-four feet. The. pondrous head is nearly one third the whole bulk of the animal, and over one-quarter of its length. The opening of its mouth is about five-sixths the length of the head; the lower jaw, from the expansion of the condyles, contracts abruptly to a narrow sym- phasis, and is studded on each side with 22 to 24 strong, sharp and conical teeth, fitting into the furrow or cavity in the upper jaw, which is destitute of, or contains only rudimentary teeth. ‘The tongue, which is usually of a whitish color, is not capable of much protrusion. The throat, however, is large, and is said to be capacious enough to receive the body of a man. The eyes are placed a little above and behind the angle of the mouth. A few inches behind the eyes are the openings of the ears, which are not one-fourth of an inch in diameter. Above, and: at the junction of the head with the body proper, is a swell called ‘the bunch of the neck.’ About midway between this protuberance and the caudal fin is another and larger bunch, called the ‘hump;’ then follows a succession of smaller processes along the ‘small’ toward the posterior extremity which is called the ‘ridge.’ “The pectorals or side fins are placed a little below and he- 28 CALIFORNIA MAMMALS. hind the eyes, and in size rarely exceed six feet in length and three feet in breadth. The caudal fin is about six feet in breadth, and measures from twelve to fifteen feet between the extremities, or about one-sixth of the length of the whole animal. Unlike the baleen whales the Cachelot has but one spiracle, or blow-hole, which is placed near the upper and anterior extremity of the head, a little on the left side; its external form is nearly like the letter S. This fissure in the adult is ten to twelve inches in length. The color of the Sperm Whale is black, or blackish brown above; a little lighter on the sides below, except on the breast, where it becomes a silvery gray. Some examples, however, are piebald. “In the young Sperm Whales, as in the young of all ceta- ceans, the black-skin, cr epidermis, is much heavier than in adults, it being a half an inch in thickness or thereabouts, while it does not exceed a quarter of an inch in the old whale. As age ad- vances the skin becomes more furrowed. Beneath the black-skin lies the rich coating of fat or blubber, which yields the valuable oil of commerce. The head produces nearly one-third of all the oil obtained. Next to and above the bone of the upper jaw {which is termed the ‘coach’ or ‘sleigh’), is a huge mass of cartileginous, elastic, tough fat, which is called the ‘junk.’ .\bove the junk, on the right side of the head, is a large cavity, or sack, termed the ‘case,” which contains oil in its naturally fluid state together with the granulated substance known as ‘spermaceti.’ From this capacious hidden receptacle as much as fifteen barrels of head-matter has been taken. The ‘ambergris’ which is so highly prized, is nothing more than the retained anal concretion of a diseased whale. In the left side of the cranium, above the junk, is the breathing passage or nostril of the whale. This, with the case is protected by a thick, tough, elastic substance called the ‘head skin’ which is proof against the harpoon. “We now come to the general habits of this gigantic animal, relative to its movements in the vast oceans of the globe. Among the whole order of the Cetaceans there is no other which respires with the same regularity as the Cachelot. When emerging to PHYSETERIDA 29 the surface, the first portion of the animal seen is the region of the hump, then it raises its head and respires slowly for about three seconds, sending forth diagonally a volume of whitish vapor like an escape of steam; this is called the ‘spout,’ which, in ordinary weather, may be seen from the masthead three to five miles. In respiring at leisure, the animal sometimes makes no headway through the water; at other times it moves slowly along at about the rate of two or three miles an hour; or if ‘mak- ing a passage’ frorn one feeding ground to another, it may accele- rate its velocity. When in progressive motion (after ‘blow- ing), hardly an instant is required for inspiration, when the an- imal dips its head a little and momentarily disappears, then it rises again to blow, as before, each respiration made with great regularity. The number of spoutings made when in a state of quietude depends on the size of the animal; varying in the adult female and in the young of both sexes from the largest and old- est males. The same may be said as to the length of time it remains upon or beneath the surface of the ocean. With the largest bulls the time occupied in performing one expiration and one in- spiration is ten to twelve seconds, and the animal will generally blow from sixty to seventy five times at one ‘rising’, remaining upon the surface of the sea about twelve minutes. As soon as his ‘spoutings are out’ he pitches head foremost downward; then nearly perpendicular attitude, descends to a great depth, and there ‘rounding out,’ turns his flukes high in air, and, when gaining a remains from fifty minutes to an hour and a quarter. “When a Cachelct becomes alarmed, or is sporting in the ocean, its actions are widely different. If frightened it has the faculty of instantly sinking, (as the sailors say, ‘he can let go and go down in a jiffy’). When merely startled it will frequently assume nearly a perpendicular position, with the greater portion of its head above water, to look and listen; or when lying on the surface, it will sweep around from side to side with its flukes, to ascertain whether any object is within reach. At other times, when at play, it will elevate its flukes high in air, then strike them 30 CALIFORNIA MAMMALS. down with great force, which raises the water in spray and foam about it; this is termed ‘lobtailing.’ Oftentimes it descends a few fathoms beneath the waves, then, giving a powerful shoot nearly out of the water at an angle of forty-five degrees or less, falls on its side, or leaps bodily out in a semi-lateral attitude, coming down with a heavy splash, producing a pyramid of foam which may be seen from the masthead, on a clear day, at least ten miles, and is of great advantage to the whaler in searching for his prey. These singular antics of the Sperm Whale are said to be performed to rid itself of a troublesome parasite, known among sailors by the name of ‘suckfish’; but the animal is seldom infested with the parasitic crustacea which are indigenous to the Rorquals anu Right Whales. “We may further add that it is one of the few species of the larger Cetaceans which inhabit every ocean not bound with icy fetters during the rigors of winter, and although great numbers of them are found in the cold latitudes; they also like to bask in the equatorial waters under a tropical sun. It is true, however, that but few are met with in the far northern limits of the At- lantic or the Pacific, compared with the numbers that inhabit the great range of the southern seas. “The Cachelots are gregarious and they are often seen in schools numbering from fifteen to twenty up to hundreds. ‘The oldest and largest males, however, for the greater part of the year roam. alone; yet there is no lack of instances where these monsters have been found in herds by themselves; but the usua! assemblage is made up of males and females—the latter with their young. At such times two or three large bulls are in at- tendance, which lead the van. The female is quite solicitous for her playful offspring, and when pursued the mother may be seen assisting it to escape by partly supporting it on one of her pectorals. “The principal food of the Sperm Whale is familiarly named by whalers. ‘squid,’ which includes one or more species of cuttle- fishes (cephalopods) ; occasionally the codfish, albicore, and bon- PHYSETERIDA 31 ita are laid under contribution. But the true and natural way in which this great rover of the hidden depths seeks and devours its animal food is still tinged with mystery. “The Sperm whale is usually found in the deep, open sea, or, as whalemen term it ‘off soundings,’ but many instances are known of their being seen in large numbers, and captures have been made, on soundings. This has been the case to our know!l- ledge off San Bartholome Bay and Ballena Bay, on the Lower California coast, the depth of water varying in these places from forty to eighty fathoms. Formerly this species was found in great numbers along the coast of Upper California. The ships cruising for them kept in a belt of water extending about one hundred miles from the land and closing in with the shore.” (Scammon). 32 CALIFORNIA MAMMALS, Family Delphinidee. (Dolphins, Porpoises, etc.) Teeth usually numerous in both jaws; rostral portion of skull lengthened, about as Jong as cranium in some species, much longer in others; costal cartileges ossified. This family includes the smaller cetaceans. Because of the lack of examples in museums the genera and species of this family are not well known and many changes in nomenclature may be expected as better material for study is acquired. There 7 1. Baird Dolphin. 2. Bay Porpoise. 3. Striped Porpoise. 4 Right Whale Porpoise. 5. Blackfish. 6. Cowrfish. “1 Black Killer. are fifteen or perhaps eighteen genera and probably more than fifty species. | Many species are pelagic, others frequent the vicinity of shores, occasionally entering bays, while a few species are peculiar to large rivers, such as the .\mazon and the Ganges. California gets a fair share of the marine species though several are almost exterminated. DELPHINID AG 33 These aquatic animals are active, voracious and usually gregarious. Their food is fish, squid, cuttlefish, etc. A few species are hunted for their oil, but many species yield too small amounts to make their pursuit profitable, particularly as their activity or peculiar habits make their pursuit difficult. Subfamily Delphinine. Cervical vertebrae more or less consolidated; pterygoids not prolonged backward to articulate with the squamosals. Genus Lissodelphis Grocer. (Smooth—dolphin. ) No dorsal fin; pectoral fin curved; depression in front of forehead moderate; rostrum long, tapering; teetr 43 to 47, small, sharp. Lissodelphis borealis Praur. (Northern.) NORTHERN RIGHT WHALE PORPOISE. Form slender; beak short, distinct; flukes small: lower jaw longer than upper and curved upward at the extremity. Length about 2200 mm. (87 inches); end of jaw to pec- toral fin 625 (25); length of pectoral fin 300 (12); breadth of flukes 400 (16). North Pacific Ocean. California. Japan. “The Right Whale Porpoise of the western coast of North America, in habit and form, is nearly the same as the Right’ Whale Porpoise of the southern hemisphere (peroni), but it is not so beautifully marked in vivid contrast, in pure white and jet black, as the latter; the former being black above and lighter below, with but little of its lower extremities banded with white. The Right Whale Porpoise is not usually met with in large numbers, and is seldom found in shallow bays or lagoons. We have seen them as far south as San Diego Bay, on the Californian coast, and as far north as Behring Sea, showing plainly that the two species of the same genus have a feeding ground which em- 34 CALIFORNIA MAMMALS. braces at least the western coast of North and South America.” (Scammon). Genus Phoceena Cuvier. (Seal like.) Dorsal fin rather small, varying in shape with species; pec- toral fins ovate; rostrum short and broad; teeth 16 to 26, small, compressed; vertebrze 64 to 98. Phocszena communis Lisson. (In common.) BAY PORPOISE. Head conical; body fusiform, slender; front margin of dor- sal fin nearly straight, near margin concave; teeth 26—26; verte- bre 64 to 67; above slaty black; below lighter (male) or white (female). Length about 1730 mm. (68 inches) ; end of jaw to dorsal fin 740 (29); height of dorsal fin 100 (4); length of pectoral fin 180 (7); breadth of flukes 320 (12.5). North Atlantic and North Pacific Oceans, south to New Jersey and Mexico. Ascends rivers. “This peculiar species of Dolphin is the least in size of the entire whale tribe inhabiting the Pacific North American coast. The body of the male is black above, a little lighter below; and while the female is of the same color above, it is lighter on the sides, with a narrow black streak running from the corner of the mouth to the pectoral, and the lower part of the animal is of a milky whiteness, yet the pectoral and caudal fins are black underneath or of a dark gray. “The habits of this animal differ from those of other species found in the open sea or along the coast. Their favorite re- sort seems to be discolored waters between the limits of the pure ocean element and the fresh rivers. They are rarely seen far from either side of these boundaries. They are never found in large schools, but occasionally six or eight may be seen scattered about, appearing on the surface alternately, sometimes singly, or DELPHINIDA 35 two or three together at the same insant. Neither do they make those playful heaps and gambols that the larger Dolphins do, their general habit being to make a quick puff and turn as soon as they appear above water, aparently choosing the darkness below rather than the light above. It is not from shyness, however, for they are met with about roadsteads and harbors, among shipping, and frequently play their odd turnings close to vessels under way, or at their moorings. By night, when at anchor, we have known them to play about the vessels rudder, but this may be regarded. as am unusual occurrence. “They feed on small fish, and are occasionally taken in the seines that are hauled along the shores of San Francisco Bay by Italian fishermen. The northern Indians frequently capture them about the inland waters during the calm, clear weather of the summer months.” (Scammon). » Genus Orcinus Fitzincrr. (A kind of whale.) Dorsal fin very large and prominent; pectoral fins large, broad, ovate; head conical; rostrum broad, about as long as cranium; teeth 10 to 13, large; vertebre 52; largest of subfamily. Orcinus rectipinna Corr. (Straight—fin.) STRAIGHT FINNED KILLER. Dorsal fin at right angles to the body, extremely long, six feet or more in the male; no large white spot behind the eye; length of male about 20 feet. North Pacific Ocean. Orcinus ater Corr. (Black.) BLACK KILLER. Dorsal fin shorter, wider and curved backward; a white spot behind the eye. : North Pacific Ocean. The following notes apply to both Killers, the description 36 CALIFORNIA MAMMALS. and names being founded on these notes and Captain Scammon’s drawings. “The Orca—a cetaceous animal commonly known as the Killer—is one of the largest members of the Dolphin family. The length of the males may average twenty feet and the females fifteen feet. The body is covered with a coating of white fat, or blubber, yielding a pure, transparent oil. An extremely promi- nent dorsal fin, placed about two-fifths of the length of the body from the animal’s beak, distinguishes it from all other Dolphins. In the largest species this prominent upper limb stands quite erect, reaches the height of six feet and frequently turns over sideways at the extremity. In the animals of more moderate size the fin is broader at the base, less in altitude, and is slightly curved backward, while upon others it is shorter still, and broader in proportion at its juncture with the back, and is more falcated. It is usually in color jet black above and lighter below; yet many of inferior size are mest beautifully variegated, the colors being almost as vividly contrasted as the tiger of India. Some individuals have a clear white spot, of oblong shape, just behind the eyes, and a maroon band, of nearly crescent shape, adorning the back behind the dorsal fin, which it more than half encircles. “The habits of the Killers exhibit a boldness and cunning peculiar to their carnivorous propensities. At times they are seen in schools, undulating over the waves—two, three, six or eight abreast—and with the long, pointed fins above their arched backs, together with their varied marks and colors, they present a pleasing and somewhat military aspect. Three or four of these voracious animals do not hesitate to grapple with the largest baleen whale; and it is surprising to see the leviathan of the deep so completely paralyzed by the presence of their natural, though diminutive enemies. Frequently the terrified animal—compara- tively of enormous size and superior strength evinces no effort to escape, but lies in a helpless condition, or makes but little resistance to its merciless destroyers. The attack of these wolves of the ocean upon their gigantic prey may be likened, in some DELPHINID/& 37 respects, toa pack of hounds holding a stricken deer at bay. The Orca, however, does not always live on such gigantic food; and we incline to the belief that it is but rarely that these carnivora of the sea attack the larger cetaceans, but chiefly prey with great rapacity upon their young. The Orca finds its principal food in the smaller species of its own family, together with the seals and larger fishes. They will sometimes be seen peering above the surface with a seal in their bristling jaws, shaking or crunch- ing their victim, and swallowing them apparently with great gusto; or, should no other game present itself, porpoises and salmon may fill their empty maws, or a Humpback or Finback Whale may furnish them with an ample repast. “Compared with the other species of the Dolphin tribe the Orcas are not numerous, neither do they usually go in large schools or shoals, like the Porpoises and Blackfish. ‘They are seldom captured by civilized whalemen, as their varied and ir- regular movements make the pursuit difficult, and the product of oil is ever less than that of Blackfish, in proportion to their size. By chance, however, we were so fortunate as to take one of them, a female about 15 feet long, and on examining it to satisfy ourselves about the character of its food, found that it consisted of young seals. The covering of fat did not exceed three-fourths of an inch in thickness, and was very white. The yield of oil was one and a half barrels, and nearly as clear as springwater. “The Killers I have noticed in the Gulf of Georgia, about the northern end of Vancouver Island, and as far north as the Aleutian Islands, appear to have more white on their sides and are of a dull black on the back, the dorsal fin wider at the base and shorter. I am fully convinced that there are two species at least on the coast between the latitudes of 20 degrees and 60 de-+ grees north; one with a dorsal fin excessively long, narrow at base, standing very erect; the other species with a shorter dorsal fin, somewhat curved, much broader and slanting backward.” (Scammon). 38 CALIFORNIA MAMMALS. Genus Globicephala Lesson. (Ball—head. ) Dorsal fin long, low, curved; pectoral fins long, tapering curved; head globose; mouth oblique; rostrum very short and broad; teeth 7 to 11, large, in front half of jaws; vertebre 57 to 6o. Globicephala scammoni Corr. (For Captain C. M. Scammon. ) SCAMMON BLACKFISH. Size large; form stout; pectoral fins long, slightly curved, pointed; skull large and massive; color entirely black. North Pacific Ocean. “Blackfish are generally found wherever Sperm \Whales re- sort, but in many instances they congregate in much larger numbers, and range nearer the coast than the regular feeding ground of the latter. Although subsisting almost entirely on the same kind of food—the squid or octopus—still at times, when schools of them visit bays or lagoons, they prey upon the small fish swarming in those shallow waters. In Magdalena Bay we have seen them in moderate numbers, appearing as much at home as the Common Porpoise or the Cowfish. They collect in schools, from ten to twenty up to hundreds, and when going along on the surface of the sea there is less of the rising and falling move- ment than with the Porpoises, and their spoutings before ‘going down’ are irregular, both in number and time between respira- tions. If the animal is moving quickly much of the head and body is exposed. \Whalemen call this going ‘eye out.” In low latitudes in perfectly calm weather, it is not infrequent to find a herd of them lymg quite still, huddled together promiscuously, making no spout and seemingly taking a rest. “On the 14th day of December 1862, on the coast of Lower California, in latitude 31 degrees, land ten miles distant, a school of Blackfish was ‘raised.’ The boats were immediately lowered and gave chase, and three fish were taken. The largest was a male and measured as follows: Length 15 feet 6 inches. Depth DELPHINID.1 39 of body 3 feet 6 inches. ‘Circumference of body 8 feet g inches. Expansion of flukes 3 feet 6 inches. Breadth of flukes 1 foot. From end of head to spout hole 1 foot 6 inches. End of head to dorsal fin 4 feet 6 inches. Length of pectorals 2 feet 10 inches. Length of spout hole across the head 4 inches. ‘The spout hole is of half circular shape opening like a valve when the spout ascends, clos- ing as it escapes. The number of teeth on each side of the upper jaw varies from ten to twelve, in the lower jaw from eight to ten; the exposed parts from one-fourth to three-fourths of an inch long. “From all we can learn of their breeding habits they bring forth their young at any time, or in any part of the ocean as necessity may require. Off the coast of Guatemala, in February, 1853, a calf taken from one was three feet long, the mother measuring thirteen feet. In the same school it was taken from we saw several young ones about the same size as that above mentioned. “The Blackfish is taken for its oil, which is, however, much inferior to that of the Sperm Whale. The yield is small, from ten gallons to ten barrels. The blubber varies in thickness from one inch to ten inches; its color is white. The flesh of the Black- fish is like coarse beef, and after being exposed to the air a few days, then properly cooked, is by no means unsavory food. The same may be said of the different species of Porpoises. Form- erly Blackfish were found in large numbers on the coast of Lower California, but, probably from the same cause as made mention ecncerning Sperm Whales, these grounds are now but little fre- quented by them.” (Scammon). Genus Grampus Gray. (Great fish.) Dorsal fin long, high, curved; pectoral fins long, narrow, curved; head globose; mouth oblique; rostrum short and broad; teeth two to seven, in front half of lower jaw only; vertebre 68. 40 CALIFORNIA MAMMALS. Grampus griseus Cuvier. (Gray.) COMMON GRAMPUS. Head globose with a suggestion of a beak; lower jaw shorter than upper; flukes narrow. <{dulé: back, dorsal fin and flukes dark gray or blackish, more or less tinged with purple; pectoral fins blackish mottled with gray ; head and front part of body light gray tinged with yellow; belly grayish white; body marked with numerous irregular unsymmetrical streaks. Young; dark gray above; below grayish white; head whitish strongly tinged with yellow ; sides with five or more narrow vertical stripes. Length about 3200 mm. (125 inches) ; end of jaw to dor- sal fin 1200 (48); height of dorsal fin 400 (16); breadth of flukes 720 (28); length of pectoral fin 600 (24). North Atlantic and north Pacific Oceans. Mediterranean Sea. Japan. California. Dall separated the Pacific Ocean animal under the name of stearnsi; but True cansiders them not seperable. The habits of Grampuses are similar to those of Porpoises. Genus Lagenorhynchus Gray. (Flagon—snotut. ) Dorsal and pectoral fins long and curved; rostrum large and broad; teeth 22 to 45; vertebrae 73 to 92. Lagenorhynchus obliquidens Giit. (Oblique—teeth. ) STRIPED PORPOISE. Form stout ; beak very short; dorsal fin high, pointed, strong- ly curved; pectoral fins and flukes broad; teeth 31—31; vertebra 74- Length about 2200 mm. (87 inches) ; end of jaws to dorsal fin 915 (36); breadth of flukes 600 (24). North Pacific Ocean. Puget Sound. California. “This species of the smaller Dolphins varies but little in its general proportions from the Common Dolphin, except in its back fin which is more falcated and slender, and its snout, which DELPHINID Ag 41 is more blunt. In point of color it is greenish black on its upper surface, lightened on the sides with broad longitudinal stripes of white, gray and dull black, which in most examples run into each other, but below it is a pearly or snowy white. The posterior edge of the dorsal fin is tipped with dull white or gray, and some- times the flanks are marked in the same manner. “We have observed that this species has a wider range, con- gregates in larger numbers, and exhibits more activity than any other member of the dolphin family. They are seen, in numbers from a dozen up to many hundreds, tumbling over the surface of the sea, or making arching leaps, plunging again on the same curve, or darting high and falling sidewise upon the water with a spiteful splash, accompanied by a report that may be heard some distance. When a brisk breeze is blowing they frequentiy play . bout the bow of a ship going at her utmost speed, darting across the cutwater and shooting ahead, or circling around the vessel, apparently sporting at ease. “The Striped Porpoises are often seen in considerabie num- bers about the large bays and lagoons along this coast, that have no fresh water running into them. They abound more aloug ithe coasts where small fish are found than in midocean, as they principally prey upon the smaller finny tribes; and to obtain them shoot swiftly through the water, seizing the object of their pursuit with the slightest effort. Occasionally a large number of them will get into a school of fish, frightening them so that they will dart around in all directions, and finally get so bewildered as to loose nearly all control over their movements. At such times the Striped Porpoise is manifestly the ‘sea swine’, filling itself to repletion.” (Scammon). Genus Delphinus Linneus. (Dolphin.) Dorsal and pectoral fins long, rather narrow, curved; a dis- tinct depression across the head in front of forehead; rostrum nearly twice as long! as cranium, narrow; teeth 47 to 65, narrow, small; vertebre 73 to 76. 42 CALIFORNIA MAMMALS. Delphinus delphis Linn. (Dolphin. ) COMMON DOLPHIN. Form and disposition of color markings very variable; teeth 47—46 to 50—51; length about 2265 mm. (go inches) ; end of jaw to dorsal fin 1000 (40) ; end of jaw to pectoral fin 500 (20) ; height of dorsal fin 230 (9); length of pectoral fin 350 (14); breadth of flukes 520 (21). “Mr. Dall was unfortunately unable to compare his skele- ton with that of D. delphis, to which species D. bairdit, 1f distinct, is undoubtedly most clasely allied. From the evidence now ob- tainable I am unable to distinguish between D. delphis and D. bairdi, and must therefore regard the latter as identical with the former.” (True). Pelagic. Found in most seas. I have a skull picked up on the beach near San Diego, and have seen others. The following is from Captain Scammon’s account of Delphinus “bairdti.” “This Dolphin inhabits the Pacific North American coast, in common with other varieties which abound in these waters. At a distance it much resembles the Common Porpoise of fisher- men and sailors; but it differs in several points from that species. We were so fortunate as to obtain two female specimens off Point Arguello, in the fall of 1872, from which we obtained the following notes. Apparently both individuals were adults, and nearly the same size and weight. The body of Delphinus bairdit is more slender, and its snout more elongated and rounded, than that of the Striped or Common Porpoises, and may be compared to the bill of a snipe. Its teeth are slender, conical and slightly curved inward. Its dorsal fin is more erect and less falcated than that of the Lagenorhynchus obliquidens, while its pectorals are nearly the same shape and comparative proportions; but the caudal fin is less in breadth and greater in proportionate expan- sion. Its back, immediately forward of the dorsal fin, is some- what concave, so that when taking a side view the upper contour appears lower before than behind the fin. Its varied colors are, top and sides of head black, sides of body behind the vent and DELPHINIDAG 43 both sides of pectorals and flukes a greenish black; a black patch around the eye with a black streak passing forward above the mouth, a continuous black streak from the side of the under jaw to the anterior edge of the pectorals. Sides behind the eye gray, the upper boudary of this color being somewhat above the plane of that organ, beginning to curve downward just behind the dor- sal fin, and meeting both black and white marks between the vent and flukes, in or near the mesial line of the under side of the body. A lanceolate white patch extending on the ventral side from the middle of the jaw to the vent. A narrow white stripe extending from the corner of the mouth backward, on each side, slightly arched above the pectoral and then curving downward gradually, the two meeting below in the region of the vent. An- other, still narrower and somewhat obscure, starts at the same place as the last, but is soon lost in the white ventral patch be- fore alluded to. The Delphinus bairdii may be considered sym- metrical in its proportions. It moves through the water with great swiftness and grace. Appended are the dimensions in feet and inches, of the examples above mentioned. Total leneth ot the animals ...02cscesaxewes 6’—7” 6’—9” Anterior edge of pectorals ... ........ 0.2... i 1’ Hxpansigi Of Hubkes oc ni34 oydauey eyes aie ee V’—6” ’—s5” Height of dorsal fin .......... 0.0.00 .002005- Ge 7 Circumference before the dorsal fin ............ 3—4" 37-3” Genus Tursiops Grrvats. (Dolphin like.) Dorsal and pectoral fins long, narrow, curved; sides not banded; a distinct depression across head in front of forehead; rostrum moderately long, tapering; teeth 22 to 26, large, smooth; vertebrze 61 to 64. Tursiops gilli Dati. (For Prof. T. N. Gill.) COWFISH. “Exterior known only from an outline drawing and record 44 CALIFORNIA MAMMALS. of two momentary observations by Scammon. Teeth 22—22. Habitat; North Pacific Ocean, Monterey, California and Lower California.” (True). “This Porpoise is larger than the Striped or Right Whale species, and is known by the name of Cowfish. It is longer also in proportion to its girth, and its snout is somewhat contracted. Its teeth are much larger, straight, conical, and sharply pointed, but less in number. A specimen taken at Monterey in 1871, had 24—23, 2423. The animal also differs in color, it being black all over, lightened a little below. “The habits of the Cowfish, as observed on the coast of California and Mexico, are strikingly different from those of the true Porpoise. It is often remarked by whalemen that they are ‘a mongrel breed’ of doubtful character, being frequently seen in company with Blackfish, sometimes with Porpoises, and oc- casionally with Humpbacks when the latter are found in large numbers on an abundant feeding ground. They are met with likewise in the lagoons along the coast, singly, in pairs, or fives, or sixes, rarely a larger number together, straggling about in a vagrant manner in the winding estuaries, subsisting on the fish which abound in these circumscribed waters. At times they are seen moving lazily along under the shade of the mangroves that in many places fringe the shores; at other times lying about in listless attitudes among the plentiful supplies of food surround- ing them.” (Scammon). , UNGULATA 45 Order Ungulata. Toes more or less completely enclosed by horny hoofs or with broad claws; no clavicles; molar teeth with ridged or tub- erculated grinding surfaces. Suborder Artiodactyla. ; Feet cleft; first toe wanting; second and fifth toes smail, rudimentary or absent. Superfamily Pecora. Ruminants. Stomach with four compartments; food regurgitated and remasticated ; horns or antlers usually present; upper canine teeth usually absent, sometimes present and occasionally largely de- veloped. Tails of Deer. 1. Mule Deer. 2. Black-tailed Deer. 8. Virginia Deer 4. Wapiti. 46 CALIFORNIA MAMMALS. . Family Cervidee. (Deer.) Male usually, female rarely, with deciduous bony antlers placed on a permanent short pedestal; upper canines usually present, sometimes highly developed in males of certain Asiatic species; upper incisors absent; second and fifth toes present but small; no gall bladder. Genus Cervus Linneus. (Deer.) Antlers, on male only, two or three times as long as head, usually round, branched, the tines turned forward, brow tine low ; posterior nares not divided; canines never projecting beyond edge of lips; lachrymal pit large; ears rather small; no interdigital “olands” ; hoof rounded, oxlike in form; metatarsal gland present on hind leg; tarsal gland absent; tail short. Dental formula, I, o—4; C, 1—0; P, 3—-3; M, 3—3 X2==34. Cervus roosevelti Merriam. (For Theodore Roosevelt. * ROOSEVELT WAPITI. Male; size large; skull and antlers massive; beams of antlers relatively short and straight, with terminal prong aborted; most of face black or brownish black; hairs of neck long and forming a mane on the throat; a dusky or black stripe on top of neck; extending a greater or less distance on the back, remainder of neck brown; breast and belly dull chestnut brown; sides and back grayish brown; a large pale tawny patch on the rump. Female; no antlers; smaller; dark colored parts paler. Length of adult male about 2500 mm. (98 inches). Type locality, Olympic Mountains, Washington. Pacific coast from northwestern California to British Col- umbia. When the first white men came to California Wapiti of this or the next species were common in many places in the cen- tral and northern parts of the State. Now this species is limited to a few inaccessible places in the three or four northwestern counties. CERVID/& 47 “Wapiti” appears to have been the Iroquois name of the ani- mal commonly called the American “Elk.” The European Elk is closely related to the American Moose, while the European analogue of the Wapiti Deer is the Red Deer or Stag; hence “Elk” is misapplied as ® name for the American animal, and Wapiti, as the next best known name, should be used. Wapiti prefer forests moderately free of undergrowth, in mountainous or hilly regions. ‘The food is coarse and varied, consisting largely of leaves and twigs. They are good trotters and usually adopt that gait for rapid traveling unless very much hurried, when they break into a fast run. This gait an old fat buck cannot sustain long before coming to bay, but poor or young animals can run a considerable distance. The voice is. high, sharp and forcible, but is only used in defiance or in great alarm. : Wapiti are somewhat gregarious and are occasionally seer in large herds in the Rocky Mountains. They are polygamous, the strongest bucks gathering a small band of does in the rut- ting season and driving away weaker rivals. The rutting season cf the eastern species is September and the fawns are dropped zbout May; probably the same dates hold good for our species. The bucks are tyrannical to the members of their harem. Twins are infrequent. The venison of Wapiti is not as tender as that of the smaller Deer, but it is very nutritious. It is very dif- ficult to preserve. Still hunting on foot is the usual method of hunting Wapiti, and in northwestern California this is practically the only method available. Cervus nannodes Merriam. (Small.) CALIFORNIA WAPITI. Size small; legs short; coloration pale; head, neck and shoulders grizzled grayish brown; back and flanks varying fromm buffy gray to grizzled buffy whitish; front of legs and feet light tawny; rump patch white, small and narrow. 48 CALIFORNIA MAMMALS. The type, a two year old male, measured, length 2030 mm. (80 inches) ; tail vertebree 140 (5.50) ; hind foot 620 (24.40). Type locality, Buttonwillow Ranch, Kern County, Califor- nia. The California Wapiti are now limited to a small band run- ming in Kern County. This is the pitiful remnant of the thous- ands that ranged over the San Joaquin and Sacramento Valleys when the first gold hunters came to this region. The chief of the U. S$. Biological Survey (Dr. Merriam) made an unsuccess- ful attempt to place this band in the Sequoia National Park in the autumn of 1904. It is to be hoped that some means will be found to preserve the few individuals left. his seems to be a small, valley-loving species, and is not known to have occurred outside of California. So far as known, their habits are like those of other Wapiti, except that they often frequent marshy lo- calities. Genus Odocoileus RarinEsgur. (Tooth—hollow. ) Antlers, on male only, less than twice as long as head, round, branched, not palmated, brow tine some distance above base of antler; posterior nares divided by a bony septum (vomer) ; up- per canines absent; lachrymal pit large; ears medium or large; interdigital “glands” present; metatarsal and tarsal glands pres- ent on hind leg; hoof narrow and pointed; tail of medium length. Dental formula, I, o—4; C, o—o; P, 3—3; M. 3—3 X2=32. Odocoileus hemionus Rarinesour. (Mule.) MULE DEER. Antlers usually dividing in two subequal forks and each fork disposed to branch again; tail vertebrze shorter than the ear; a strip of naked skin on underside of tail; metatarsal gland (on outside of hind leg) five to six inches long; ears very large. IVinter pelage; dark gray above, fading as the season advances; breast blackish; a large patch surrounding the tail, from the rump CERVIDA 49 to between the legs, dull white. Swimmer pelage; yellowish brown to reddish brown. Young; brownish yellow more or less regularly spotted with dull white. Length of male about 1575 mm. (62 inches) ; tail vertebrae 185 (7.25); hind foot 475 (18.65) ; ear from crown 240 (9.50). Length of female about 1450 (57); tail vertebre 175 (6.90) ; hind foot 445 (17.50); ear 225 (8.85). (Note: the length of the hind foot is the distance from the point of the longest toe to the extremity of what is popularly called the “knee” which is really the true heel. Ungulates walk on the ends of their toes). Type locality, upper Missouri River. The Mule Deer ranges over a large part of the United States, from northern Arizona to British America, and from the great plains to the Sierra Nevada and Cascade Mountains. In the southern part of this range the true Mule Deer blends with the two succeeding subspecies. It is moderately common on the eastern slope of the northern part of the Sierra Nevada. It pre- fers the foothills of mountain ranges and broken ground in plains, but is also found in mountains. The gait of the Mule Deer is. less graceful than that of the Virginia Deer. The run is a series of high bounds, rapid but too tiresome to be sustained long. The Mule Deer is easily distinguished from the Black-tailed Deer and Virginia Deer and its western forms by the much smaller tail, which is naked part way down on the under side and has the terminal third black and the remainder white. The white hairs wear away easily and frequently the middle of the tail is very slender. The metatarsal gland is the longest found on any North Americaii deer. The bare strip is easily seen by parting the hairs over it, these hairs being longer than those of the remainder of that side of the leg. The antlers are different from those of the white-tailed group of deer in one respect; those of the latter species have an indeterminate number of tines, aged bucks having numerous tines, though these are only in a general way an index of his 50 CALIFORNIA MAMMALS. age; while the antlers of the Mule Deer seldom have more than ten points, including the brow tines. Eight to twelve inches from the base each antler forks, and about six inches further each branch usually forks again in middle aged bucks. This is the normal adult form of antlers of the Black-tailed Deer and all the subspecies of the Mule Deer. Now and then a buck adds a tine or two, but these are not common. The antlers of deer are not composed of horn but are bone, and it is a mistake to speak of antlers as “horns.” They are grown underneath a skin, much as other bones are; not from their bases and inner surfaces as horns are. The Mule Deer, as well as our other species, eats a variety «of plants, prefering a considerable proportion of twigs and foliage of shrubs and trees intermixed with grass and other plants, as well as seeds, fruits and such nuts as they can chew, such as acorns. In localities where they are not distrubed they feed more or less in the daytime, but where they are hunted they be- come principally nocturnal. Odocoileus hemionus eremicus Mearns. (Hermit, ¢. ¢., a dweller in the desert. ) BURRO DEER. Similar to hemionus; larger; paler; in winter yellowish drab gray, darkest on the back, palest on the sides; breast sooty lower parts nearly pure white; tawny tips of hairs of upper parts longer; black stripe on side obscure; ear tufts longer. Length about 330 mm. (13 inches); tail vertebre 135 (5.25); hind foot 52 (2); ear from crown 21 (.83). Weight ten ounces. Type locality, Blue Canon, Placer County, California. California Chickarees are common locally in the coniferous forests of the Sierra Nevada and other mountains of the north- eastern part of California, from 3,000 feet altitude up nearly to timber line, but are most common in mixed pine and fir forests. Not known to occur south of the Sierra Nevada. The food is quite varied but consists principally of the seeds of conifers, such as fir, big trees, sugar pine and yellow pine, berries, nuts, acorns and chinquapins. Mushrooms and some insects are also eaten. I have caught these Chickarees in meat baited traps set for other animals. They often store seeds 90 CALIFORNIA MAMMALS. in shallow holes scratched in the ground. A portion of — these seeds are not recovered and some germinate, so the Chickaree is quite an important agent in nature’s system of tree planting. They usually bite off the stems of the large cones letting the cones fall to the ground, coming down to gnaw their seeds loose at the foot of the tree. Chickarees are very active, keeping mostly in the larger trees, often running up and down their trunks, apparently for sport. They are wary, yet inquisitive, and if one keeps quiet they will soon come out on a knot to scold the intruder. The voice is varied, commonly a rapid chirring series of notes is heard, sometimes a sharp yelp, or again a bird-like note. Most of these sounds are emphasized by jerks and wags of the tail. Chickarees do not hibernate in California, though in stormy weather they remain several days at a time in their nests in hol- low trees, but in fine weather they run about on the snow as if they enjoyed the cold weather, as they doubtless do. They do not like hot weather and are not found in the warm valleys or low mountains. 5 The breeding season is late, as the young are born in June, and July. The young are four or five in number. I have shot females in August that were then suckling young. The sum- mer moult takes place in June and the autumn moult in Septem- ber. Sciurus douglassi mollipilosus Aup and Bac. (Soft— haired. ) REDWOOD CHICKAREE. Similar to albolimbatus; color above darker; below ochrace- ous buff or pale salmon shaded with dusky, the basal half of the hairs being dusky and showing through the tips. Averaging smaller. Type locality, Coast of northern California. The Redwood Chickaree is found principally in the redwood forests, more particularly where the firs are mixed among the SCIURIDAu 91 redwoods, and in the oaks in the openings among the redwoods. I did not hear the chirring song that is made by most other sub- species, but heard the “bark,” a monotonous “quoo” uttered at intervals of two or three seconds. When startled or disturbed this changed to a querulous “queeo.” My impression from my brief acquaintance with the Redwood Chipmunk is that they are tame and unsuspicious. I saw them occasionally on the ground. Genus Sciuropterus Cuvier. (Squirrel—wing. ) Upper outline of skull strongly arched; penultimate pre- molar present; anteorbital foramen triangular, rather small; skin of sides loose, extensible between the fore and hind legs to form parachute-like “wings” and extended by a long slender bone ar- ticulated with the carpus and directed backward and outward; tail long, broad, very much flattened; no cheek pouches; eyes large; ears of moderate size, thinly haired; pelage soft; size small ; habit crepuscular and nocturnal; eight mamme. Sciuropterus alpinus klamathensis Merriam. KLAMATH FLYING SQUIRREL. Above dark drab brown, sometimes tinged with pale dull ful- vous brown; under parts pale yellowish buff, the plumbeous un- der fur showing through; upper surface of tail like back, but somewhat darker, especially toward the end; under side of tail uniform deep buff; nose and feet pale; cheeks pale yellowish gray. Length of type 329 mm. (13 inches); tail vertebre 135 (5.45); hind foot 38 (1.50). Type locality, Fort Klamath, Oregon. Southern Oregon and probably northeastern California. Dr. Merriam saw a Flying Squirrel on Mount Shasta which he thought was of this subspecies. Sciuropterus alpinus californicus Ruoaps. SAN BERNARDINO FLYING SQUIRREL. Similiar to klamathensis; apparently paler and smaller. 92 CALIFORNIA MAMMALS. Length of type 286 mm. (11.25 inches) ; tail vertebre 127 (5.10); hind foot 38 (1.50). A female that I took in the type locality measured, length 245 (11.60); tail vertebre 140 (5.50); hind foot 37 (1.45); ear from crown 20 (.78). Weight five ounces. Type locality, San Bernardino Mountains, California. Flying Squirrels appear to be rare in southern California and are not known to occur below the coniferous forests. They are nocturnal in habit and may be more common than we sup- pose. The food of Flying Squirrels consists of seeds, buds, beetles and flesh, occasionally at least; whether or not they habitually kill small mammals and birds is not certainly known. They live in holes in trees and rarely come out until twilight. The flight of Flying Squirrels is not true flying but is a sailing leap. They leap from the upper part of a tree with the side membranes extended and with the aid of these*and the broad flat tail sail down and out, alighting against the lower part of another tree, running up, to again leap from the top. They can guide the flight to some degree, but cannot rise to the height from which they started. Sciuropterus oregonensis stephensi Merriam. STEPHENS FLYING SQUIRREL. Above wood brown, the tips only of the hairs being of this color, the remainder slate gray, this color showing through the tips; upper part of head and neck a lighter brown; a narrow blackish eye ring; sides of head and cheeks pale brownish gray; feet drab gray; under surface of head, body and wings white tinged with pale brownish yellow, the slaty under fur showing through; upper surface of tail mouse gray tinged with drab toward the base; under side of tail light smoke gray, darker at the edges. Length of type 277 mm. (10.90 inches) ; tail vertebrae 131 (5.15); hind foot 37 (1.45) ; ear from crown 19 (.75). APLODONTID 4 98 Type locality, Sherwoods, Mendocino County, California. I caught the type of this subspecies in a thick redwood forest, in a steel trap baited with meat and set for mink at the roots of a large redwood tree a few inches from a brook. Family, Aplodontidse. SrweE..ets. Skull massive, flat, much constricted interorbitally, excess- ively widened posteriorly ; brain case comparatively small; zygo- matic arches widened posteriorly; no postorbital processes; anteorbital foramen small, low, oval; nasals short and broad; audital bull peculiar, tubular, being greatly lengthened later- ally; descending ramus of lower jaw very wide with a project- ing lateral angular flange; coronoid process high; molariform teeth simple, roctless, prismatic, penultimate upper premolar present but small; five toes on each foot, the inner toe of front foot small but functional; tibia and fibula separate though closely apposed; outlets of genito-urinal and digestive organs separate. This peculiar family contains but a single genus, consisting of half a dozen species and subspecies. It appears to be one of the most primitive types of mammals now existing, having no very close affinities with any other living family. It is of lim- ited distribution, being found only in western North America from California to British Columbia, in the Sierra Nevada and Cascade Mountains and in parts of the lower region west to the Pacific coast. The food is twigs, stems and leaves of shrubs and plants. mostly perennial. They are plantigrade, nocturnal, semi-aquatic, fossorial, living in burrows in wet ground. The sexes are alike; the young are darker in color but are otherwise similar to the adults. There are five pairs of mamme, nearly equally distrib- uted from the armpit to the groin. Genus Aplodontia RicHarpson. (Simple-tooth. ) Eyes small; ears projecting a short distance above the sur- 94 CALIFORNIA MAMMALS. rounding fur; no cheek pouches; neck short and thick; legs short; claws of fore feet largest; feet not webbed; soles naked; tail haired and very short; form depressed, stout; pelage con- sisting of thick underfur mixed with long hairs. Dental formula, I, r—1; C, o-—o; P, 2—1; M, 3—3X 2=22. Aplodontia major Merriam. (Greater. ) CALIFORNIA MOUNTAIN BEAVER. Above from nose to hips, and on the sides grayish sepia brown grizzled with black, the pelage slate colored at base and the long intermixed hairs black tipped; hips, rump, tail and under parts smoke gray; a small white anal spot; whiskers mostly black. l’oung; slate brown. Length about 355 mm. (14 inches); tail vertebrae 42 (1.60) ; hind foot 62 (2.45); ear from crown 8 (.32). Weight three to four pounds. Type locality, Placer County, California. California Mountain Beavers occur in isolated localities in the Sierra Nevada and northward, and also in the Siskiyou Moun- tains. I have taken them in Alpine County, on the eastern slope at the headwaters of Carson River. They live in wet springy land in canyons and on mountain sides where suitable springs occur, usually at considerable al- titudes. I obtained mine at 8,000 feet altitude. The burrows in most cases ran up and down the wet hillside, for drainage, and often had openings every few feet. Some of the burrows were fifty yards or more in length, and in a few cases spring brooks had broken into the upper entrance and ran in the burrows instead of in their natural channels. In one case a brook was diverted from its own channel to that of one several yards away. Most of the entrances to the burrows were under clumps of wil- lows. Many of the burrows had more or less water running from their lower entrances, but rather the greater number were dry. APLODONTIDA& 95 The plants that I saw cut for food were an /ris, an Astragu- lus, willow and alder. Tio these Allen adds fir, manzanita and lillies; and Price Ceanothus, Rhododendron and mountain cran- berry. Probably many other plants are also eaten. ‘They can climb bushes, and Allen and I each saw brush and small trees trimmed off three or four feet from the ground. I saw bunches of plants laid up on low bushes to dry, commonly over entrances to burrows, most of these not being much dried, as if they car- ried them in as soon as they were well wilted. All the animals caught were alive when I reached them in the morning. None had made any attempt to gnaw off the leg, as true beaver would have done. Most of them were the length of the trap chain down their burrows. While pulling them out they made a whining sound. Some showed fight. They used their hind feet in grasping as readily as their fore feet and as well as a squirrel. It would appear that other ani- mals prey on the Mountain Beaver as I caught a weasel and two skunks in traps set for Mountain Beaver. Hibernation is prob- ably imperfect. The fur is of no value. Aplodontia pheea Merriam. ( Dusky.) POINT REYES MOUNTAIN BEAVER. Similar to major; smaller; above grizzled bistre. Length of type specimen 330 mm. (13 inches) ; tail verte- bree 30 (1.20); hind foot 55 (2.15). Type locality, Point Reyes, Marin County, California. Limits of distribution unknown. The only other record that I have seen that may apply to this species is that of a specimen in the collection of the California Academy of Sciences from near Eureka. 96 CALIFORNIA MAMMALS. Family CGastoridee. Beavers. Skull massive, flat, not constricted interorbitally, nor exces- sively widened posteriorly ; zygomatic arches widened posteriorly ; no postorbital processes; nasals short, broad, oval in outer out- line; audital bulla moderately lengthened laterally: descending ramus of lower jaw wide but of normal shape; molariform teeth single rooted, with the pulp persisting late in life; planes of up- per molars convergent anteriorly; outlets of genitv-urinal and digestive organs combined in one. Dental formula, I, r—1; C, o—o; P, 1—1; M, 3-3 2=20. The Beavers are a very small family, containing but one living genus, consisting of but two species as now recognized. They are distributed over the colder parts of the northern hemis- phere. The food is strictly vegetable, consisting mostly of twigs and bark obtained by gnawing down trees and shrubs. Their fur is valuable and has been an important article of commerce. Beavers are plantigrade, nocturnal, semiaquatic and live in burrows or in “houses” constructed of sticks and mud. The males are somewhat larger than the females but the sexes are otherwise alike and the young differ but little from the adults. Genus Castor Linneus. (Beaver.) Form stout; tail broad, flat, tongue shaped, covered with scales instead of with hairs; front feet small, not webbed, the inner toe developed but smaller than the others; no cheek pouches; pelage consisting of thick fine underfur interspersed with long coarse hairs. Castor canadensis frondator Mearns. (Twig-stripper.) BROAD-TAILED BEAVER. Above russet; below grayish cinnamon; sides wood brown; feet burnt sienna color. Length of adult male about 1090 mm. (43 inches); tail CASTORID/E 97 vertebree 355 (14); hind foot 185 (7.25); bare part of tail about 125 (4.90) wide, by 290 (11.40) long. Weight 40 to 66 pounds; female smaller. Type locality, San Pedro River, near Monument 98 on the Arizona-Sonora boundary line. Broad-tailed Beavers are found in the interior southwestern United States and northern Mexico from Sonora to Montana. Those found in eastern California along the Colorado River are of this subspecies. In February and March, 1903, I saw signs of Beavers along the banks of the Colorado River a few miles below old Fort Yuma, but failed to get any in the traps which I set for them. They were few in number, probably only a pair, and seemed to choose a new place to come out on the bank each night. I found very few trees cut, these being mostly small willow saplings. The principal “‘signs” were at small, but dense, thickets of cane that grow here and there along the banks, and I saw some canes that had been cut. Beaver are known to live in suitable places all along the Colorado River, but they are trapped so persistently that they do not get a chance to become plentiful. Castor canadensis pacificus Ruoaps. PACIFIC BEAVER. Underfur of upper surface of body and head seal brown; overhair glossy reddish chestnut, almost concealing the under- fur along the back; underfur of belly drab gray at roots and over- hair broccoli brown; fore legs and feet dark wood brown; hind feet seal brown; ears black. Length of type specimen (a female) 1145 mm. (45 in- ches) ; tail vertebree 330 (14); hind foot 185 (7.25); bare part of tail 122 (4.80) wide by 295 (11.60) long. Type locality, Lake Kichelos, Washington. Pacific slope from Alaska to central California east to and including the Sierra Nevada and Cascade Mountains. I saw CALIFORNIA MAMMALS. vld Beaver dams and aspens cut by Beavers a few miles east of Goose Lake, Modoc County, but all the Beavers had been caught a few years previously. Dr. Cooper says that Beavers were for- merly common in the San Joaquin and Sacramento Rivers, and I have reasons for believing that they are not exterminated there yet, though rare. I can find no records of any “houses” having been seen in California and I have seen none west of Colorado. In places ahere dry banks that Beavers can burrow in occur the Peavers ilo not build houses. In fact all houses that I ever saw were placed in ponds made by damming streams so as to get suill wa- ter to build in, and these localities were either too rocky to bur- rev in easily or suitable dry banks. were not available. Dams are not often built in streams that do not freeze over, the princi- pal use cf the dam being to provide deep water to store logs and brouches in for a food supply when the streams are frozen over and it is not practicable to cut wood and float it to where they Wish to eat the bark and twigs. In most parts of Califorina the presence of Beavers is only made known hy ihe stumps of the trees and saplings that they have cut. The use of the tail as a trowel or barge is but another of these “fairy tics’ that unfortunately creep into natural history accounts. The use of the tail in water is in diving and tc some extent as arulder. When on land it is used as a prop when the animal wishes to sit up and gnaw the bark from a stick held in the fore paws, or to cut down a tree. Swimming is done with hind feet, the fore feet being mostly held folded back under the breast. When swimming on the surface, if frightened or suspic- ious, it is not unusual for the Beaver to strike the surface of the water with the flat tail, making a sharp report, that heard near one on a still night is startling enough, as I know from exper- ience. Beavers have been credited with great intelligence, but the facts do not indicate an uncommon account of reasoning power; many other rodents are nearly or quite as cunning. MURIDA 99 Family Muridee. Rats and Mice. Skull much contracted interorbitally; anteorbital foramen large, wide in its upper part, narrow at bottom; zygomatic arch spreading, slender, the maxillar part prolonged backward and the malar correspondingly diminished; no premolars; molars rooted or rootless, tuberculate or with angular enamel folds on grind- ing surface; no external cheek pouches; internal cheek pouches sometimes present; clavicles present; tibia and fibula united in their lower parts; inner toe of front foot rudimentary. This is a large family of nearly fifty genera and probably five hundred species divided among several subfamilies. The family is represented in all parts of the world, but each family preponderates in some particular zoo-geographical region. Few members of this family are utilized by mankind as food. ‘Taken as a whole it may be classed as noxious through their destroying considerable amounts of cultivated or indigenous crops or their stored products. Rats and Mice are more or less omnivorous. Perhaps their largest item of food is seeds, but scarcely anything edible comes amiss to some or another of the species. , Most of the species are nocturnal. The modes of life are varied; some are semiaquatic; a few are semiarboreal; most species are terrestrial and again others are more or less sub- terranean. The sexes are practically alike; the young are usually darker than the adults; distinct seasonal changes are few. Dental formula, I, 1—1; C, o—o; P, o—o; M, 3—3 X2=16. Subfamily Murinee. Skull long and narrow’; rostrum long; nasals projecting be- yond premaxillaries; enlargement at root of lower incisor near base of condylar process greatest on the outer surface; tip of angular process below the plane of the summits of lower molars; notch between tip of angular process of lower jaw and condyle shallow ; molars rooted, tuberculate, with tubercles in three series; palate extending further back than molars. 100 CALIFORNIA MAMMALS, Genus Mus Linn. (Mouse. ) Incisors narrow, not grooved in front; tail long, nearly nak- ed, the short sparse hairs not hiding the rings of scales covering it; ears rather large; pelage usually harsh. Mus norvegicus ErxLepen. (Of Norway.) BROWN RAT. Tail shorter than head and body; color above rusty brown thickly mixed with coarse black hairs; sides grayer; below ashy white; tail dusky, slightly paler below. Length about 400 mm. (15.75) inches) ; tail vertebra 190 (7.50); hind foot 42 (1.65). Brown Rats were originally from central Asia, whence they spread to Europe. ‘They were incidentally introduced into Am- erica in 1775. They have been known on the Pacific coast more than fifty years, coming ashore from shipping and gradually spreading through the country, but are yet unknown in many parts of the State distant from large towns. They inhabit towns preferably and are seldom seen far from buildings, in and under which they find shelter. They are omnivorous and are great nuisances about barns, warehouses and dwellings. They are hardy, courageous and wary. They are more pugnacious than our native rats and soon drive the latter away from their neighborhood. They are some- times called Norway Rats and Wharf Rats. Mus rattus Linn. (Rats.) BLACK RAT Tail about as long as head and body; above sooty black; be- low plumbeous; feet brown; averaging smaller than norvegicus. Introduced from Europe earlier than the Brown Rat, but overpowered by the latter and now rare. The habits of the two species are similar. MURIDA 101 Mus musculus Linn. (Little Mouse.) COMMON MOUSE. Tail longer than head and body; above yellowish brown thickly mixed with black hairs; below ashy brown; feet brown; tail dusky, sometimes lighter below. Length about 160 mm. (6.30 inches); tail vertebrae 82 (3-25); hind foot 18 (.70). Introduced from Europe. Now found in most old settle- ments in the State. Principally frequent houses and other build- ings, from which they drive the less objectionable native mice. Subfamily Cricetinee. Skull short and moderately broad; rostrum rather short; nasals projecting beyond premaxillaries; enlargement at root of lower incisor near base of condylar process greatest on outer surface; tip of angular process of lower jaw below plane of sum- mits of lower molars; notch between tip of angular process and condyle shallow; molars rooted, tuberculate, the tubercles in two series; palate ending opposite end of molar row. Genus Onychomys Bairp. (Claw—mouse. ) Upper incisors broad, causing a broadening of the rostrum at their roots; posterior molars above and below much smaller than the others; nasals long, wedge shaped posteriorly ; coronoid process of lower jaw long, slender, curved backward; fore feet large with long claws; tail thick, blunt, short, about half as long as head and body. Onychomys torridus ramona Ruoavs. (Torrid; for “Ramona.” ) SAN BERNARDINO GRASSHOPPER MOUSE. A broad indefinite dorsal band from nose to tail dark brown; sometimes blackish; sides reddish bistre; below white, this color 102 CALIFORNIA MAMMALS. including the feet, sides of face nearly to the level of the eyes and nose; upper third of tail similar to the back, the remainder white, usually including the tip; nasals long and pointed; a more or less distinct supraorbital bead. Immature; mouse gray above. Length about 140 mm. (5.50 inches); tail vertebrae 53 (2.10) ; hind foot 20 (.80) ; ear from crown 15 (.60). Type locality, San Bernardino Valley, California. San Bernardino Grasshopper Mice inhabit the valleys of southwestern California and northwestern Lower California. They are more frequently found in sandy land in valleys, but are no- where common. I have taken them along the seashore and in the foothills, but not in the mountains. They are more car- nivorous than is usual with this family, the food consisting of insects, such as grasshoppers, beetles and larve. They attack other mice and often devour parts of such mice as they find caught in the collectors’ traps. They take grain bait, but meat bait is preferred. They have a musky odor. They decay more readily than common mice, probabl because of their carnivorous diet. The young are about four in number and are born in March, April, May and June. The mamme are six in number, one pair pectoral and two pairs inguinal. Onychomys torridus perpallidus Mrarns. (Very pale.) YUMA GRASSHOPPER MOUSE. Pelage long and soft; above vinaceous cinnamon, the hairs tipped with black, sometimes producing a dark dorsal band; nose, face nearly to eyes, feet and belly white; basal three fourths of tail on the upper side mixed dusky and white; tip and underside of tail white. Length about 155 mm. (6 inches) ; tail vertebre 57 (2.25) ; hind foot 22 (.87); ear from crown 16 (.63). Type locality, Boundary Monument No. 204 (below Yuma, Arizona). The Yuma Grasshopper Mice seem to be local in distribu- MURIDA5 103 tion, and are common in a few places in Arizona, but rare on the California side of the Colorado River. Herbert Brown found them about Yuma in bottom lands thickly overgrown with weeds and cockle burs. Onychomys torridus tularensis Merriam. (Of Tulare.) TULARE GRASSHOPPER MOUSE. Small; above pale drab gray barely tinged with buffy. Length about 143 mm. (5.65 inches); tail vertebrae 50 (2); hind foot 21 (.83). Type locality, Bakersfield, California. Range, the Tulare Basin and vicinity; apparently not com- mon. Onychomys torridus longicaudus Merriam. (Long— tail. ) LONG-TAILED GRASSHOPPER MOUSE. “Above cinnamon-fawn well mixed with black tipped hairs; ears small’. Length 145 mm. (5.70 inches) ; tail vertebra 55 (2.15); hind foot 20 (.78) ; ear from crown 10 (.40) ; in dry skin. Type locality, St. George, Utah. An Onychomys occurs from Owen Valley and Death Valley eastward which I suppose to be longicaudus, but having no ex- amples I may be mistaken in the species. Genus Peromyscus GiocEr. (Pouch—little mouse. ) Uppet incirsors narrow ; posterior molars somewhat smaller than the others; coronoid process of lower jaw small and low; tail tapering, shorter than head and body in some species, longer in others; pelage not harsh nor bristly. Peromyscus texanus gambeli Bairp. (For Dr. Wm. Gambel. ) GAMBEL MOUSE. Tail shorter than head and body. Above variable in color 104 CALIFORNIA MAMMALS, from light grayish wood brown to dark drab or hair brown, darkest along the back and top of the shoulders; feet and lower parts from nose to tail white; tail distinctly bicolor, the upper third brown or dusky, the remainder white. Occasionally a red- dish or fawn colored individual is found; these are usually old animals. Young; mouse gray, scarcely lighter on the sides; belly grayish or ashy. Length about 160 mm. (6.30 inches); tail vertebre 74 (2.90) ; hind foot 20 (.80); ear from crown 17 (.67). Type locality, Monterey, California. The Gambel Mice are generally distributed from northern Lower California to Oregon, and from the western border of the Deserts west to the seacoast. They are found in the greatest variety of situations from the seacoast to timberline in tne high mountains. ‘They are perhaps less fond of brushy localities than several other species of the genus and frequent rocky localities more than they do. ‘The food consists of a great variety of seeds, leaves, twigs, bark, insects or flesh of any kind that may fall in their way. The young are born at all times of the year except in the coldest part of the winter; they are four to eight in number. The nests are warm masses of grass, sometimes lined with hair or feathers, and are placed in crevices among rocks, hollows in trees, or in burrows in the ground. The young are nearly hairless when born and are blind, the eyes not opening for several days. This species frequents houses and other buildings in regions where the introduced house mouse has not become common. They are easily trapped in almost any kind of trap baited with grain, bread or fresh meat. Peromyscus texanus deserticolus Mearns. (Desert in- habiting. ) DESERT DEER MOUSE. Pale; above yellowish drab, the sides tinged with ochraceous ; MURIDA 105 feet and lower parts white; tail bicolor, dusky or brownish above; remainder white. Length about 180 mm. (7.10) inches); tail vertebra 82 (3.25); hind foot 21 (.83); ear from crown 16 (.63). Type locality, Mojave Desert near Hesperia, California. Desert Mice are common in the arid regions of northeast- ern Lower California, southeastern California, southern Ne- vada, southwestern Utah and western Arizona, in all places where they can find food. Like most mammals of this arid region they are independent of water, though probably using it when it is to be had. Like other mice the food is varied. The label of one of my skins from Salt Creek, Colorado Desert, taken March 2oth, bears the notes “contained eight foetuses”. I have other foetal notes in April (seven), June (five) and November (five). The habits of this subspecies do not dif- fer materially from those of others of the species. Examples from parts of the San Bernardino and other mountains are very similar to deserticolus and perhaps should be referred to that form. Peromyscus texanus clementis Mrarns. (Of San Cle- mente Island.) SAN CLEMENTE MOUSE. “Above drab anteriorly, strongly tinged with burnt umber posteriorly; top of head drab gray; ears black with faint hoary edging; feet and under surface white; tail sharply bicolored”’. “Length 177 mm. (7 inches); tail vertebre 77 (3); hind foot 21 (.83); ear 17 (.67)”. Type locality, San Clemente Island, California. I have seen a few Peromyscus from each of the following Islands, Coronado, San Clemente, San Nicolas, and Santa Bar- bara. These agreed in size but differed slightly in shade of color, the Santa Barbara skins being the darkest. 106 CALIFORNIA MAMMALS. Peromyscus oreas rubidus Oscoop. (A mountain nymph; red.) MENDOCINO MOUSE. “Upper parts brownish fawn with an evident median dorsal line; sides brownish fawn; ears lightly edged with whitish; under parts white; tail sharply bicolor.” Length about 193 mm. (7.62 inches); tail vertebree 96 (3.80) ; hind foot 21.5 (.85). Type locality, Mendocino City, Mendocino County, Califor- nia. “Coast region of northern California and southern Oregon, south at least to Cazadero, California.” Peromyscus boylii Bairp. (For Dr. C. C. Boyle.) BOYLE MOUSE. Size medium; tail longer than the head and body; ears of moderate size; above varying from bistre mixed with blackish to mouse gray, the bistre specimens having the sides of head and sides of body strongly tinged with wood brown, the gray ones with very little reddish on the sides; tail bicolor, dusky above whitish below. Immature; slate gray above; pale ashy below. Length about 195 mm. (7.70 inches); tail vertebrae 105 (4.15); hind foot 22 (.86); ear from crown Ig (.75). Type locality, Middle Fork of American River, El Dorado County, California. Boyle Mice are found in many parts of California, principally in the mountains, seldom occurring in the valleys. ‘They are not often plentiful, and are occasionally found in houses and barns. They appear to be a brush loving species. Peromyscus truei Suurenpt. (For F. W. True of the National Museum. ) BIG-EARED MOUSE. Similar in colors to boylii and californicus, but averaging MURIDA 107 browner ; body stout; tail distinctly bicolor; ears and hind feet long. Length about 195 mm. (7.70 inches); tail vertebra 105 (4.15); hind foot 23 (.90); ear from crown 23 (.90). Type locality, Fort Wingate, New Mexico. Big-eared Mice, including the subspecies, are widely dis- tributed over the southwestern United States. In California they are found principally in the foothills and mountains of the coast region. They seem to be local in distribution and are probably most plentiful in the west central part of the State. Probably the Californian form will ultimately be known as subspecies gilberti. I have no material from the type locality and cannot be sure therefore that such is the real status of the Californian form. I have most frequently found the Big-eared Mice in thickets of brush in open forest. The litters of young are small, usually but two or three in number. Subgenus Haplomylomys Oscoop. (Simple—molar— mouse. ) Skull with cranium relatively large; first and second upper molars with but two reentrant angles on the outer side, the smail secondary tubercles being absent; lower molars correspondingly simple; tail longer than head and body, thinly haired. Peromyscus californicus GampeL. (Of California.) CALIFORNIA MOUSE. Size very large; ears very large; tail long, short haired, distinctly bicolor in adults; soles naked; above yellowish brown thickly mixed with black, especially on the back and hips which are often nearly black; sides tinged with ochraceous passing to ochraceous buff on the lower part of the sides and there strongly contrasting with the grayish white lower parts; breast more or less tinged with ochraceous, often forming a spot; feet white; 108 CALIFORNIA MAMMALS. tail blackish above, dull white below, sometimes tipped with white. Young; plumbeous above, blackish at a later stage, with but little ochraceous tinge on the sides; below ashy or grayish white; tail scarcely lighter beneath. Length about 250 mm. (9.85 inches); tail vertebre 140 (5.50); hind foot 26 (1.03); ear from crown 23 (.90). Type locality, Monterey, California. The California Mouse is found in the chemisal and in un- derbrush in open forests, in the valleys, foothills and lower moun- tains of the coast region of California from some distance north of San Francisco south to about Santa Barbara where it blends into the next subspecies. It appears to reach the lower part of the Sierra Nevada in small numbers. For some time after its discovery naturalists supposed that {his species lived in the nests of the Brush Rats and were in some manner parasitic on them, but it is now known to occur in brush in general and to have habits similar to those of other wood mice. Peromyscus californicus insignis Ruoaps. (Distin- guished by a mark. ) CHEMISAL MOUSE. Very similar to californicus; slightly smaller in average: lighter colored, back with less black, sides less ochraceous. Length about 233 mm. (9.85 inches); tail vertebra 13c (5.10); hind foot 25 (1); ear from crown 22 (.86). Type locality, Dulzura, San Diego County, Califorria. The Chemisal Mouse occurs in northwestern Lower Calif- ornia and in southern California from the seacoast to the lower edge of the pines. They do not frequent open valleys, but are more or Jess common in the chemisal and in the brush among the oaks. They frequently inhabit knotholes and hollows in leaning trees, being fair climbers. They are fond of running on logs. I do not find them more common about Brush Rat nests MURIDEZ 109 than elsewhere. They appear to breed at all times of year. The litters are small, oftenest consisting of three young. Peromyscus eremicus Barrp. (Hermit.) HERMIT MOUSE. Pale colored; tail long, very slender, scant haired; soles naked; ears large; above broccoli brown, grayer on the head, mixed with black hairs on the back; sides ochraceous buff, strong- est on the lower part of the sides; belly white, distinctly outlined against the buff sides; feet white; tail dusky above, pale gray be- low, but not distinctly bicolored. Young; darker, with little or no buff on the sides. Length about 195 mm. (7.70 inches); tail vertebre 107 (4.20) ; hind: foot 21 (.83); ear from crown 17 (.67). Type locality, old Fort Yuma, California. Hermit Mice are generally distributed through the eastern parts of the Colorado and Mojave Deserts, the valleys and deserts of western Arizona, southern Utah, southern Nevada, Sonora and northeastern Lower California. They are perhaps most com- mon in rocky ground in the hills and barren mountains of this region, occurring up to 4,000 feet altitude; but they are also occasionally common miles out on the plains in the rare patches of grass and weeds and in the vegetation: about springs or the sinks of the infrequent springs. Their food is mostly seeds, but beetles and other insects are also eaten. The young number three or four in a litter. Peromyscus eremicus stephensi Mrarns (For F. Stephens. ) PALM DESERT MOUSE. Very similar to eremicus; averaging smaller with proportion- ally longer tail; paler; belly white. Type locality, canyon below Mountain Spring near the Mexi- can boundary, San Diego County, California. 110 CALIFORNIA MAMMALS. Rather common in the foothills along the western border of the Colorado Desert. Peromyscus eremicus herroni Ruoaps. (For R. B. Herron. ) HERRON MOUSE. Similar to eremicus; darker; sides less buffy, the color of the back shading further down the sides; belly grayish white. Type locality, south side of San Bernardino Valley, Califor- nia. Herron Mice are intermediate between the Hermit Mice and Dulzura Mice in color and in habitat. They live in the drier warm interior valleys, and their borders in the southern part of California, from northern San Diego County northward. They are common in few places. Peromyscus eremicus fraterculus MiILiEr. (Little brother. ) DULZURA MOUSE. Darker than cremicus or herroni; above dark grayish wood brown or yellowish bistre rather thickly intermixed with black, shading on the sides to brownish ochraceous buff; belly cream buff in typical specimens but often pale grayish buff or grayish white; a buff pectoral spot is frequently present. Type locality, Dulzura, San Diego County, California. Rather common in brush along the coast and mesas and western slopes of the coast mountains from northwestern Lower California northwest to Ventura County, California. The north- ernmost specimens intergrade with Herron Mice and the eastern ones with Palm Desert Mice. Genus Sigmodon Say and Orv. (Sigma—tooth. ) Upper incisors broad; rostrum broad and short; zygomatic arches very wide posteriorly; border of orbits beaded; coronoid process of lower jaw of moderate size; a process of the maxillary MURIDA 111 projecting in front of the anteorbital foramen nearly cutting it in two; tail slender, scaly, thinly haired, shorter than head and body ; pelage long, coarse, hispid; form stout. Sigmodon hispidus eremicus Mearns. (Bristly; hermit) WESTERN COTTON RAT. Above grayish buff coarsely grizzled with black, paler on the sides; below dull white, the plumbeous bases of the hairs showing through the white tips; feet grayish white; tail blackish above, grayish below. Length about 280 mm. (11 inches); tail vertebrz 130 (5.10) ; hind foot 34 (1.35); ear from crown 17 (.67). Type locality, northwestern Sonora, Mexico, 30 miles south of boundary monument 204, near the Colorado River. Western Cotton Rats are found in the bottom lands of the Colorado River from its mouth north to near Ehrenberg, Arizona or further. But little is known about their abundance, but they are probably common in places, and are likely to prove troublesome as settlements increase and food and cover become more plenti- ful. They seem to like thick cover such as cane patches and thick weeds, and are likely to invade grain and alfalfa fields. They are prolific, as I caught females opposite Ehrenberg in August containing six foetuses each. None of the females that I caught near Yuma in March contained any. Their habits seem to be similar to those of meadow mice in some respects. I found sorghum stalks cut in coarse pieces six to ten inches long. Genus Reithrodontomys Gictiot1. (Channel—tooth— mouse. ) Upper incisors deeply grooved in front, appearing collec- tively as if there were four instead of two; lower incisors small, normal; front upper molar with four roots, one being very small; coronoid process of lower jaw small, oblique; angular process in- flected at lower edge; anteorbital foramen wide and rounded 112 CALIFORNIA MAMMALS. above, contracted to a slit below; tail usually longer than head and body, slender, moderatety haired. Reithrodontomys longicaudus Bairp. (Long—tail.) LONG-TAILED HARVEST MOUSE. Adult; above reddish bistre thickly mixed with black hairs, these usually forming a broad blackish dorsal band; sides with fewer black hairs and more or less tinged with cinnamon; below grayish white, sometimes tinged with buff; tail indistinctly. bi- color, dusky above, whitish below. /iimature; mouse gray above, pale plumbeous below. (I consider pallidus Rhoads not separable from longicaudus. If pallidus is recognized as a subspecies at least two more sub- species must be named, but I do not think these slight local differences sufficiently tangible to the worth recognizing). Length about 143 mm. (5.63 inches); tail vertebrze 76 (3); hind foot 17 (.67); ear from crown 13 (.51). Type locality, Petaluma, California. Long-tailed Harvest Mice are found from Lake and Tehama Counties south into northern Lower California; and from the seacoast east into the Sierra Nevada and San Bernardino Moun- tains. They are found in grassy localities. The thicker and older the grass the more abundant the Mice are likely to be. If a few localities they are quite common, but they may be wanting over large areas. They do not appear to go high in the moun- tains, seldom as high as. 4,000 feet altitude. The food seems to be entirely vegetable, mostly the seeds, leaves and stems of various plants. The mamme are six in num- ber, two pairs inguineal and one pair pectoral. The young are two to four and are born at all times of the year, probably two or three litters annually. MURIDA 113 Reithrodontomys megalotis deserti ALLEN. (Large ear; of the desert.) | DESERT HARVEST MOUSE. Similar to longicaudus; grayer, with fewer black hairs mixed through the pelage of the back; ears broader and averaging higher. Length about 140 mm. (5.50 inches); tail vertebrae 73 (2.87) ; hind foot 17 (.67). Type locality, Oasis Valley, southwestern Nevada. Desert Harvest Mice occur in patches of grass and weeds around springs and the infrequent small streams of southern Ne- vada and the adjoining part of California, west to the foot of the Sierra Nevada, and south to northeastern Lower California. Their habits are similar to those of the Long-tailed Harvest Mice, but they reach a somewhat higher altitude. Reithrodontomys klamathensis Merriam. (Of Klam- ath Valley. ) KLAMATH HARVEST MOUSE. “Upper parts pale grayish brown, washed with buffy on sides; under parts white; tail bicolor, dusky above, whitish be- low; ears and hind feet large.” Length 144 mm. (5.70 inches) ; tail vertebree 66 (2.60) ; hind foot 18.5 (.73). Type locality, Shasta Valley, California. Said to be rather common from the base of Mount Shasta north and northeast. I have not seen this species. Subfamily Neotomine. Skull long and narrow; rostrum long; nasals projecting beyond premaxillaries; enlargement at root of lower incisor near base of condylar process greatest on outer surface; tip of angu- lar process of lower jaw below plane of summits of molars; notch between tip of angular process and condyle very shallow ; molars 114 CALIFORNIA MAMMAIS. rooted or semirooted, prismatic; palate ending about the middle of last molars. Genus Neotoma Say and Orp. (New—to cut.) Upper molars with three roots, lower with two; last molar smallest; coronoid process slender, usually higher than condyle; anteorbital foramen wide above, much contracted below, the maxillar plate bounding its posterior side not spurred; frontal not distinctly beaded at border of orbit; audital bulla small; eyes prominent; ears large, rounded; thinly haired; whiskers very long; size large. Subgenus Neotoma Gray. Skull strong, rugged; rostrum elongated; tail broad, squir- rel-like; hind feet large. Neotoma cinerea Orv. (Ash gray.) ASH-COLORED RAT. Above mixed yellowish brown and black, sides with more buff and less black; below white, the hairs ashy at base except on the breast; feet white; ankles dusky; tail rather darker on the upper side than the back, the yellow tints lacking, below white except near the base where it is brown. The hairs of the tail are from a quarter of an inch to a full inch in length, varying in length with age, season and individual. Young; above slate gray thickly mixed with black hairs; below ashy white; tail ashy or slate gray above, white below, hairs short but longer than in ‘young of the subgenus Neotoma. Length about 380 mm. (15 inches); tail vertebrae 180 (7); hind foot 45 (1.75). Type locality, Great Falls, Montana. Northern Rocky Mountains and west and southwest to the Cascade Mountains and Sierra Nevada. Common in Modoc and MURIDA 115 Lassen Counties and occasional in the Sierras south to Mount Whitney. Occasional on Mount Shasta and probably occur in small numbers in the mountains west to the Pacific. Ash-colored' Rats appear to live mostly among rocks, often in lava cliffs. The nests are not nearly as large as those of fuscipes and some others. In trapping for them I succeeded best with meat baits. The food is varied but is mostly vegetable, including juniper berries and twigs. In winter they invade barns and houses, and carry off anything eatable and many un- eatable things that take their fancy. A peculiarity not frequert in this genus is the strong musky odor, which remains with skins in the cabinet many years. Judging from the scanty material at hand the young are born from the first of May to the end of July. Subgenus Neotoma. Skull comparatively smooth and thin; rostrum of moderate length; tail scant haired, rat-like; hind feet of moderate size. Neotoma fuscipes Barrp. (Dusky—foot.) DUSKY-FOOTED BRUSH RAT. Large; tail long; ears large; above bistre or sepia darkened by black tips of the hairs, base of hairs slaty; sides varying from grayish tawny olive to grayish brown, shading into the color of the back, distinctly outlined against the grayish white or buffy white belly and throat, the hairs of the lower parts plumbeous at base except on throat, breast and anal region; fore feet and toes of hind feet white, the upper surface of the hind feet dusky or spotted with dusky; ankles blackish; tail blackish scarcely lighter beneath; hairs of tail short but hiding the skin. Young; gray with very little tawny or reddish tinge. _, Length about 407 mm. (16 inches); tail vertebra 205 (8.10) ; hind foot 40- (4.60); ear- from crown 35 (1.40). Type locality, Petaluma,and Santa Clara, California... 116 CALIFORNIA MAMMALS. Pacific coast region of central California from Monterey County north to Lake County. Dusky-footed Brush-Rats in- habit the chemisal and the underbrush in open forests and groves, 1arely being found in thick forests. This form does not appear to occur high in the mountains, seldom up to 3,000 feet altitude. The food is principally vegetable but it is quite varied. They have the usual generic propensity for carrying off small articles. The breeding season is March to June, perhaps later. The number of young in a litter is two to four. The home is usually in a “nest” or “house” of sticks, twigs, bones, or anything portable; these piles of rubbish being two to four feet high, roughly cone shaped, and are usually placed in a thicket of brush, sometimes against a tree. Occasionally the Brush-Rats take up their residence in barns or other buildings where they do the most harm by carrying off small articles, stored vegetables, dried fruit, grain or anything they can carry off, even if utterly useless to them except to swell their rubbish pile. They seldom gnaw anything, however. They leave the premises immediately on the arrival of the introduced species of rat, which is a greater nuisance. Neotoma fuscipes monochroura Ruoaps. (One-color— tail.) NORTHERN DUSKY-FOOTED BRUSH-RAT. Similar to fuscipes; darker above; hairs of belly white to roots; skull flatter; molar tooth row shorter. Type locality, Grant Pass, Josephine County, Oregon. Pacific coast region from Mendocino County, California north to mouth of the Columbia River, east to base of Mount Shasta. Neotoma fuscipes marcotis THomas. (Large—ear.) SOUTHERN SRUSH RAT. Similar to fusctpes; grayer, with less fulvous on the sides: MURID As 117 tail bicolor, blackish above, grayish below; upper surface of hind feet more or less clouded with dusky; averaging smaller ; tail shorter proportionally; palate usually shorter than incisive foramina. Length about 380 mm. (15 inches); tail vertebrz 190 (7.50); hind foot 37 (1.45); ear from crown 29 (1.15). Type locality, San Diego, Calfornia. Southwestern California and northwestern Lower California, from the seacoast up to 7,000 feet altitude in the mountains. ‘The Southern Brush-Rat is found in chemisal and other brush. The nests are large and may be seen frequently in suitable places. Occasionally smaller nests are placed in trees which lean. These tree nests are probably used in warm weather, and are commonly near other nests on the ground. The habits in general are the same as those of the species elsewhere. Neotoma fuscipes simplex. Trur. (Simple.) XANTUS BRUSH RAT. Similar to macrotis; smaller and grayer; hairs of lower parts white to roots; hind feet white; tail bicolor. Type locality, old Fort Tejon, California. Foothills and mountains bordering the southern part of the San Joaquin Valley and the extreme western part of the Mojave Desert. Neotoma fuscipes streatori Merriam. (For C. P. Streator. ) STREATOR BRUSH RAT. Similar to fuscipes in size and color; ankles darker; hind foot from ankle pure white; tail bicolor, blackish above, whitish below; skull somewhat different from that of fuscipes; length of palate less than that of incisive foramina, which reach back some- what beyond the front of the first molars; zygomatic arches less spreading posteriorly. 118 CALIFORNIA MAMMALS. Length about 380 mm. (15 inches); tail vertebrae 183 (7.20); hind foot 37 (1.45.) Type locality, Carbondale, Amador County, California. Western slope of the Sierra Nevada and northeastern Cali- fornia. Neotoma fuscipes dispar Merriam.. (Below par, de- graded. ) PALE BRUSH RAT. Entire upper parts ochraceous buff, palest on the head; back moderately lined with black tipped hairs; feet and under parts white; the white of the belly encroached upon the buffy ochraceous of the sides; tail bicolor, above brownish gray, below soiled white. The skull is similar to that of streatori. Type locality, Lone Pine, Inyo County, California. Eastern foothills of the Sierra Nevada from Owen Valley southward to the Mojave Desert. This subspecies seems to be rare. They are similar to desertorum in color but may be known by the dark ankles and long tail. Neotoma desertorum Merriam. (Of the desert.) DESERT BRUSH. RAT. Above brownish buff darkened by a mixture of black hairs, grayer on the head, clearer buff on the sides, which are usually strongly contrasted against the white lower parts; feet white; tail bicolor, dusky above whitish below. There is some varia- tion in color, examples from some localities being paler or more buffy above, and the lower parts may be tinged with buff, espec- ially. across the breast. The pelage is very soft and the tail is considerably shorter than the length of head and body. Length about 290 mm. (11.40 inches) ; tail vertebree 135 (5.30); hind foot 30 (1.20). Type locality, Furnace Creek, Death Valley, California. Mojave Desert, southern Nevada and southwestern Utah. MURIDA 119 Common in many parts of this region, more especially in rocky localities. The food is almost anything eatable, but from the nature of the region they live in, this is mostly limited to tha leaves, twigs, bark and seeds of desert plants, including cactuses. The nests are commonly placed in crevices among rocks, or under cactuses or yuccas; these very frequently contain thorny twigs and joints of cactuses, and are sometimes built exclusively of such formidable materials, perhaps for protection against coyotes. The young are three to five in number. My notes on fcet- uses observed include only March and April as breeding months, but the season is probably longer than these indicate. The Des- ert Brush-Rats have the usual thieving habits of the genus, as many prospectors can testify, bright objects being especially at- tractive. I find it nearly useless to put out any “cyclone” traps near their nests, the tin bottoms proving too attractive. The Desert Brush-Rats were formerly a considerable item of food for the Indians, but they use them less now, partly be- cause other food has become available, but principally because of the ridicule of the whites. The flesh is sweet, white and nutritious, and there is no good reason why it should not be as palatable as that of a squirrel. The Neotomas are very different from real rats. Neotoma desertorum sola Merriam. (Alone.) KERN BRUSH RAT. Similar to desertorum but larger. Length about 325 mm. (12.80 inches); tai vertebra 150 (5.90) ; hind foot 34 (1.35). Type locality, San Emigdio, Kern County, California. Distribution, head of San Joaquin Valley, California. Neotoma intermedia Ruoaps. (In the middle.) INTERMEDIATE BRUSH RAT. Similar to desertorum but darker with less buff on the sides ; body scarcely larger but tail longer, nearly or quite as long as 120 CALIFORNIA MAMMALS. head and body; pelage soft but less so than in desertorum; above light buffy brown; sides lighter; below grayish white or buffy white; feet white; tail blackish above, whitish below; skull con- siderably larger than that of desertoruim, heavier and more angu- lar ; interorbital constriction wider proportionally ; incisive foram- ina terminating slightly posterior to plane of anterior edge of first molars. Jmmature; darker, with but little buff tinge. Length about 305 mm. (12 inches); tail vertebre 152 (6); hind foot 32 (1.25); ear from crown 28 (1.10). Type locality, Dulzura, San Diego County, California. Valleys and slopes of the coast region of southern California, north nearly to Monterey. Apparently not found much above 3,000 feet altitude. They prefer rocky localities and usually build their nests among rocks. Neotoma intermedia gilva Ruoaps. (Yellowish. ) YELLOW BRUSH RAT. Very similar to desertorum in color but with the long tail and large skull of intermedia. Averaging a little smaller than intermedia. Type locality, the San Gorgonio Pass, California. Distribution, San Gorgonio Pass and the Colorado Desert. The following notes on a mother and young are extracts from a letter to me from Mr. A. H. Alverson of San Bernardino. The locality given is the Desert end of the San Gorgonio Pass. “She was taken within a mile of Whitewater, in the low foothills. ‘The nest was under a bunch of Cereus engelmani, but she was out and about two feet away from the entrance, which led to her ciscovery—the cause of her being out at that time of day I do not know, it being about 10 A. M. When she returned I noticed that she had young attached to her mamme. I soon had the plant overturned and digging about a foot deep came upon her. One of the young—there were three—became detached and set up a lively squeaking. It soon got a small stick in its mouth and MURID.% 121 held on with considerable strength, but being placed with the mother soon found its proper hold, which they all seemed to maintain until the eyes were open or nearly so; then I noticed that when the mother desired to move to another part of the cage—she is very neat—she would turn round and round and seem to twist them loose in a pile, where they would lie quietly until they felt her return, then they would at once attach to the teats, which as you know are placed very far back. “IT found them about May toth, and they may have been about a week old. About a week ago (about May 2oth), their eyes began to open, and now they are wide open. They eat with the mother, who takes almost anything from roast beef or bacon, to seeds, fruit, or bread, and is very fond of milk. Wa- ter was first given her, which she lapped like a cat, long and often. I have them in a thin wooden box, with a glass front, for observation. She does not seem inclined to gnaw, is quiet and not afraid, comes to the glass when opened and takes food from my hand, does not try to dart out, nor bite. Sometimes, however, when without sufficient food, she becomes uneasy and gnaws at the wooden box for a short time, but when food is placed in the box she desists. “The young now have fully opened eyes, eat everything the mother does, are very playful, running about most of the time, but when too venturesome the mother takes them in her mouth and lifts them bodily back to the nest in the corner, which con- sists of well shredded cotton clioth—done by herself. Sometimes she lifts them by the neck, but mostly by the middle of the side. After playing and eating the mother and young make their toilet, the mother doing mostly for all, but the young try to learn;, then the young attach to the mamme and all sleep. “They seem to be quite nocturnal, decidedly more active at night, and are out in the day only to eat a little. I should think the young are now about four weeks old. They are nearly half the size of the mother and are growing rapidly. The mother and young appear to be the same color. They feel a lower temp~ 122 CALIFORNIA MAMMALS. ‘erature, are then less lively and the hair is slightly raised, espec- dally on the head.” Neotoma abigula venusta TRurE. (White—throat; beautiful. ) MESQUIT BRUSH RAT. Above mixed dusky and ochraceous buff; darkest on the crown and back, lighter and more buffy on the sides; below white; feet white; tail bicolor, blackish above, dull white below; skull strong and angular; rostrum short, wide and deep, depress- ed; nasals wide and broadened anteriorly, narrowed to a wedge shape posteriorly; frontal shortened posteriorly and parietals cor- respondingly lengthened; incisive foramina short. Young; paler gray than usual in this genus. Length about 370 mm. (14.50 inches); tail vertebrae 175 (6.90) ; hind foot 35 (1.40); ear from crown 30 (1.18). Type locality, Carrizo Creek, California. (In foothills bor- dering the Colorado Desert.) The Mesquit Brush-Rats are most common in shrubby umasses of mesquit scattered through the Colorado Desert and in the Colorado Valley. They also occur some distance up the gulches and canyons of the adjoining foothills. Their principal food is the mesquit “beans” and twigs. They are less given to nest bulding than most Brush-Rats, living more in burrows under mesquit trees. The breeding season is similar to that of the genus in general. ry Subfamily Microtine. Skull short and broad; rostrum short; nasals short, not pro- jecting beyond premaxillaries; enlargement at root of lower in- cisor near base of condylar process of jaw greatest on inner sur- face; angular process bent back and’ up until its tip reaches above the plane of the summits of lower molars; notch between tip of MURIDA 123 angular process and condyle deep; molars prismatic, usually root- less; size usually small or medium, large in one genus. Genus Phenacomys Merriam. (Cheat—mouse. ) Skull strong and angular; molars of young animals rootless, those of adults rooted, strong, with sharp outer angles; cusps of lower molar largest on tongue side of teeth; basal part of lower incisor passing beneath roots of lower molars; feet normal; tail round, one third to one half the length of head and body; size small, Phenacomys orophilus Merriam. (Mountain—loving. ) MOUNTAIN LEMMING MOUSE. Above grayish brown, tinged with yellow in summer, thickly sprinkled with black hairs; belly dirty white; feet whitish; tail bicolor, mixed .brown and white above, whitish below. Length about 145 mm. (5.70 inches); tail vertebre 35 (1.38) ; hind foot 18 (.70). Type locality, Salmon River Mountains, Idaho. Higher parts of the mountains of British Columbia and western United States south to Mount Shasta, where Walter K. Fisher caught three “in the heather meadows along the upper part of Squaw Creek.” Phenacomys albipes Merriam. (White—foot.) REDWOOD LEMMING MOUSE. Above grizzled bistre with brownish wash on head, shoulders and sides; sides of nose dark grayish plumbeous with buffy wash; feet white; ankles dusky ; tail bicolor, dusky above, whitish below. Length of type 168 mm. (6.60 inches) ; tail. vertebree 62 (2.45); hind foot 19 (.75). Type locality, redwoods near Arcata, California. 124 CALIFORNIA MAMMALS. Genus Evotomys Cours. (Good—ear—mouse. ) Skull thin and smooth; molars of young animals rootless, those of adults rooted, rather weak, with rounded outer angles; inner cusps of lower molars about equal to outer; basal part of lower incisor passing on tongue side of roots of first and second molars and on outer side of third; feet normal; tail round, one third to one-half as long as head and body; size small. Evotomys californicus MrErriam. CALIFORNIA RED-BACKED MOUSE. A broad indistinct band from eyes to rump sepia mixed with black and gray; sides grizzled grayish brown, shading into the whitish under parts, which are tinged with buffy and darkened by the plumbeous under fur showing through; tail bicolor, dusky above, light brown or whitish below; feet dull white. Length about 150 mm. (6 inches); tail vertebre 46 (1.80); hind foot 19 (.75); ear from crown 8 (.30). Oregon examples appear to be larger. Type locality, Eureka, California. This species inhabits the coast region of northern California and western Oregon. But few specimens have been seen yet and their habits are not very well known. I have taken several individuals in redwood forests in Mendocino County, and they probably occur further south. Mine were trapped on dry hill- sides in thick forest, in traps set alongside old logs or at the roots of trees. The habits of the California Red-backed Mice are probably like those of the rest of the genus, which live in cool moist forests and brush lands, and delight in deep shade and the cover of logs, leaves and tangled weeds. Nests are built under logs, in under- ground burrows, or under cover of old leaves. Though mainly nocturnal some species are sometimes seen in the daytime. All sorts of seeds and green vegetation are eaten, and probably some worms and insects. MURIDA 125 Evotomys obscurus Merriam. (Dusky.) DUSKY RED-BACKED MOUSE. Above olive gray with an ill-defined dorsal area of cinnamon rufous obscured by black hairs; lower part of sides and face clear gray; tail bicolor, dusky above, whitish beneath. Length about 148 mm. (3.80 inches); tail vertebrae 46 (1.80); hind foot 17 (.67). Type locality, Prospect, Upper Rogue River Valley, Ore- gon. West slope of the northern Sierra Nevada and southern Cascade Mountains. Evotomys mazama Merriam. CRATER LAKE RED-BACKED MOUSE. Dorsal stripe from in front of ears to base of tail cinnamon rufous or hazel, shading gradually into buffy gray on sides and face; belly washed with buffy white; tail sharply bicolor, black- ish above, whitish below. " Length about 157 mm. (6.20 inches) ; tail vertebre 51 (2); hind foot 19 (.75). Type locality, Crater Lake, Oregon. Higher parts of the Cascade Mountains in Oregon and Mount Shasta, California, between 5,000 and 8,000 feet altitude. Genus Microtus ScHRANK. (Small—ear—mouse. ) Skull strong and angular; molars rootless through life, strong, with sharp outer angles; outer and inner cusps of lower molars of about the same size; basal part of lower incisor pass- ing on tongue side of the bases of first and second molars and on outer side of third; feet normal; tail round, usually less than half as long as head and body; form stout; size medium or small. 126 CALIFORNIA MAMMALS. Subgenus Microtus. Pelage long and rather coarse; soles with six tubercles; pattern of enamel folds of third lower molar without closed triangles; third upper molar with three closed’ triangles and seven or eight salient angles. Microtus montanus PrALe. (Of the mountain. ) PEALE MEADOW MOUSE. Nasals small, short, not projecting as far forward as the premaxillaries do; incisive foramina constricted posteriorly ; pelage soft; above sepia mixed with black; below slate gray washed with white; tail scarcely one third as long as head and body, black- ish above, lighter below; feet dull brown. Length about 165 mm. (6.50 inches); tail vertebree 50 (2); hind foot 21 (.82); ear from crown Io (.40). Type locality, Sacramento River near Mount Shasta. Peale Meadow-Mice inhabit meadows and marshes of the foothills and lower mountain sides of northeastern California, eastern Olregon, northern Nevada and Utah. ‘They do not seem to be common. Microtus dutcheri Bartey. (For B. H. Dutcher.) DUTCHER MEADOW MOUSE. Similar to montaius in color; lips and usually tip of nose white; tail short; ears small, nearly concealed; nasals small and short; above sepia mixed with brown and’ black; below buffy brown (adult) or grayish (immature); tail bicolor, blackish above, whitish below. Length about 163 mm. (6.40 inches); tail vertebrz 37 (1.45); hind foot 21 (.82). Type locality, Big Cottonwood Meadows, 10,000 alt., near Mount Whitney, California. Dutcher Meadow-Mice inhabit the wet valleys of the Sierra Nevada, from the head of Owen River southward, between 7,000 MURIDAU 127 + . and 11,000 feet altitude. They are common in many of these valleys. Microtus californicus Pear. (Of California.) CALIFORNIA MEADOW MOUSE. Winter pelage, long and coarse; above wood brown or bistre darkened by intermixture of long black hairs on the back, basal two thirds of the pelage slaty black; sides grayer; below tipped with white the plumbeous under fur showing through; tail dark brown above, grayish below; feet light brown. Swmmer pelage; grayer; tail less distinctly bicolor. Length about 170 mm. (6.70 inches); tail vertebre 54 (2.10) ; hind foot 22.5 (.88) ; ear from crown 14 (.55). Type locality, San Francisco Bay, California. California Meadow-Mice occur from northern Lower Cali- fornia through southern and central California, west of the Colo- rado and Mojave Deserts, north along the coast to southwestern Oregon, and east into the western foothills of the Sierra Nevada. They are found in grassy localities, both dry and wet. The food is stems and leaves of grasses and other plants, their roots and seeds, the bark of shrubs and trees when other food is not available, and probably some insects. They are some- times destructive to grass and grain crops, but they are rarely as abundant in California as they are in colder climates. Many are caught by hawks, owls, skunks and other carnivorous animals. They are abroad more or less during the day, and the marsh hawk is perhaps their principal diurnal foe, while the barn owl destroys many of them in the night. California Meadow-Mice, like most of their genus, are in the habit of following regular paths. These runways ear easily found in thick grass by parting it and if these are numerous, the mice are abundant. A close inspec- tion will show the stumps of grass and often little bunches of erass cut in short lengths can be found. A “cyclone” trap set in the runway ,so, that the mouse will. pass through it, or a small steel 128 CALIFORNIA MAMMALS. trap bedded so that the pan is level with the runway" will usually prove successful. Where they are very abundant a narrow trench dug across the runway, a foot or so deep with straight sides, and visited night and morning will help thin them out. They are excellent swimmers so it is not easy to drown them. Their natural enemies are the most effectual means of keeping them !n check. Protect such. Three to eight young form a litter and several litters are born annually. I have taken these Meadow-Mice containing young nearly every month in the year. The young are born blind and almost hairless. T’he nests are placed under logs, stumps, in burrows, and sometimes in thick grass on the surface. One clear September morning I was camped by the side of a brook in the mountains of San Diego County. The little stream in some winter flood had cut a channel in the alluvial soil five or six feet deep with nearly perpendicular banks and a dozen feet wide. For a short distance below camp the bottom of the chan- nel was moist and overgrown with watercress and a few round tulles, through which the little stream meandered. In this vege- tation some Meadow-Mice were feeding. I laid on the edge of the bank and watched them half an hour with the field glass, through which they appeared nearly within reach of my hand. First some dry leaves were moved on a little slope at the bottom of the opposite bank and the head and back of No. 1 ap- peared. It was feeding on some small plants, but did not come out openly. Presently No. 2 ran out of the tulles on the water- cress and began eating it. It moved in a nervous, jerky way, but did not appear shy. Soon No. 3 came but it was shyer and did not stay long, biting off a small tulle about a foot and a half long and dragging it into a thicker patch of tulles. It ran quick- ly as if accustomed to pulling such loads. I did not see any of them sit up to eat, as many small mam- mals do, nor did they use their fore feet to hold their food, using only the mouth, apparently turning the leaves about with their tongue. They did not take the larger sprays of watercress. MURIDA 129 They did not appear to chew the leaves much, but munched them down rapidly. ; Their ears appeared rather prominent, considering the length of the surrounding pelage. The eyes were very prominent, like black beads, and had a staring expression. By nine o’clock they disappeared. Microtus californicus vallicola Battey. (Of the valley.) VALLEY MEADOW MOUSE. Very similar to californicus; averaging larger and grayer. Type locality, Lone Pine, Inyo County, California. Marshy and grassy places in Owen Valley and the Mojave Desert west of Death Valley. Microtus californicus constrictus BaiLry. (Drawn together.) COAST MEADOW MOUSE. Averaging smaller and grayer than californicus; skull nar- rower ; audital bullz narrower; above buffy gray; below whitish; tail scarcely bicolor, dull grayish. Type locality, Mendocino County, California. Common on grassy hillsides and in pastures in the region along the coast near Cape Mendocino. Microtus edax Le Contr. (Voracious. ) TULLE MEADOW MOUSE. Skull long, angular, heavily ridged; pelage blacker than in californicus; sides more grayish; feet large and stout. Length about 215 mm. (8.45 inches;) tail vertebre 70 2.75); hind foot 25 (1). Type locality, near San Francisco, California. Tulle swamps of the Sacramento and San Joaquin Valleys, California. 1380 CALIFORNIA MAMMALS. Microtus scirpensis Bainry. (Of the tulles, Scirpus.) DESERT MEADOW MOUSE. Similar to edax in size, proportions and skull; pelage graye:. Known only, from a little tulle patch at a warm spring, near the Amargosa River, Inyo County, California, below the Nevada- California boundary. Microtus mordax Merriam. (Biting. ) CANTANKEROUS MEADOW MOUSE. Pelage very coarse; color light; above pale bistre grizzled with gray and black; below whitish, the plumbeous underfur showing through; tail indistinctly bicolor, brownish above, below light gray. Length about 180 mm. (7.10 inches) ; tail vertebre 64 (2.50) ; hind foot 22 (.87) ; ear from crown 14 (.55). Type locality, Sawtooth Lake, Idaho. From the Rocky Mountains through the ranges of the Great Basin to the Sierra Nevada, Mount Shasta and Trinity Moun- tains, south to the San Bernardino and San Jacinto Mountains. In California they are found only in high mountains, from 5,000 feet alt., in the northern part of the State and 7,000 feet in the southern part, up nearly to timber line. Microtus angusticeps Bartuy. (Short—head. ) BAILEY MEADOW MOUSE. Above dark bistre mixed with black, darkest on face; be- low washed with creamy white; feet plumbeous gray; tail dis- tinctly bicolor, blackish above, soiled white below; pelage coarse; skull small, narrow; audital bullz small; molars small, with narrow, sharp angles. ,Length about 170 mm. (6.70 inches); tail vertebre 55 (2.15); hind foot 22 (.87). ilype locality, Crescent City, California. Bailey Meadow-Mice occur in the damp pastures in the MURIDA 131 Sitka spruce belt along the coast of northwestern California and southwestern Oregon. Subgenus Lagurus. Pelage long and rather coarse; soles with five tubercles; pattern of third lower molar with two or three closed triangles; third upper molar with two or three closed triangles and five or six salient angles; palate flattened; audital bulle large and pro- jecting backward. Microtus curtatus Corr. (Shortened. ) SHORT-TAILED MEADOW MOUSE. Above pale buffy gray; soiled white below; tail pale gray, slightly darker above; very short; skull wide and flat, with short rostrum; audital bulle inflated. Length about 140 mm. (5.50 inches); tail vertebrae 27 (1.05); hind foot 17.5 (.70). Type locality, Pigeon Spring, Mount Magruder, Nevada. White and Inyo Mountains, California and mountains of western Nevada, principally in sagebrush in dry, barren locali- ties. Subgenus Chilotus. Pelage comparatively short and dense; soles with five tuber- cles; pattern of surface of lower molar without closed triangles; third upper molar with two or three closed triangles and six sal- ient angles; skull low and flat with long slender rostrum. Microtus oregoni Bacuman. (Of Oregon.) OREGON MEADOW MOUSE. Above mixed bistre and blackish; below dusky washed with dull buff; feet dusky; tail blackish, slightly lighter below; ears blackish, longer than the surrounding pelage. 132 CALIFORNIA MAMMALS. Length about 140 mm. (5.50 inches); tail vertebrae 42 (1.65); hind foot 17 (.67). Type locality, Astoria, Oregon. Oregon Meadow-Mice frequent dry open ground under cover of grass, or of logs in open forest from Humboldt Bay to Puget Sound. Genus Fiber Cuvier. ( Beaver.) Size, largest of the family; skull strong, angular, very nar- row between the orbits; molars rooted ; basal part of lower incisor passing on tongue side of the first and second molars and on the outer side of third; parietals and interparietal very small; hind feet large, partly webbed, capable of being turned obliquely in swimming; tail long, widened perpendicularly and fringed with stiff hairs on the edges, the sides being nearly bare; underfur dense. Fiber zibethecus pallidus Mearns. (Civet like; pailid.) PALE MUSKRAT. General color above light glossy chestnut; sides russet ; lower parts grayer; underfur light plumbeous. Length about 445 mm. (17.50 inches) ; tail vertebra 195 (7.70) ; hind foot 68 (2. 67); ear from crown 16.5 (.65). Type locality, Fort Verde, Arizona. ‘Pale Muskrats live along the Colorado River and its tribu- taries, but are not plentiful. They live in the banks of the main river and also in the banks of ponds and old channels containing still water. Muskrats have been reported from Carson River it Nevada, and they may cross the State line into the few suitable places in the upper part of the valley. I am quite sure that I have seen a reference to their occurrence in the Sacramento Val- ley, but I am unable to find it or recall the particulars. I found Pale Muskrats in a small lake above Needles, on the Arizona side, but they were very few in number. On the Califor- MURID& 133 nian side of the Colorado River, a few miles below Ehrenberg, Arizona I found a colony inhabiting a “slough”. I trapped for them unsuccessfully, but succeeded in shooting three by moonlight and one after sunrise as they were swimming among the tulles. They were much smaller than the Muskrats that I used to trap in the Mississippi Valley. Two weighed twenty ounces each. The fur was thin and short, as might be expected in that warm cli- mate. I have seen no “houses” and can learn of none in the west. These mounds of dead vegetation are common in the sloughs and ponds of the northeastern States. The food of Muskrats gener- ally is the stems and roots of aquatic plants. Fresh-water mus- sels and fish are also eaten. Occasionally vegetables are taken from gardens near streams that they frequent. A burrow opened by Schott near Yuma contained screw beans. 134 CALIFORNIA MAMMALS. Family Geomyidee (The Pocket-Gophers. ) Body stout, thickset; head wide and blunt; eyes and ears small; mouth peculiar in having no lips, the large incisors pro- jecting through the ordinary skin, which is haired behind them, the real mouth opening just in front of the premolars, cheek pouches large and opening externally, these pouches being purse- shaped infoldings of the loose skin of the neck, lined with short hairs, reaching back nearly to the shoulders and held in place by small muscles; legs very short and strong; feet large, with five toes each; claws of fore feet very large; tail about half as long as the head and body, scantily haired, the tip endowed with tactile nerves; skull large; lower jaw massive, strongly curved ; incisors very long and stout; squamosal much expanded; mastoids re- stricted to the occiput. This family contains nine genera and more than one hundred nominal species and subspecies; a considerable number of these will probably be dropped when the genus is critically studied as a whole. The distribution is temperate North America, exclusive of the Middle and New England States, Mexico and Central America. Most of the genera and many of the species are Mexi- can. But one genus is known to occur in the United States west of the Rocky Mountains. The food is mostly vegetable, a large part consisting of roots and tubers. Succulent plants are drawn into the burrows and eaten. It is probable that such worms and insects as are incidentally found are also eaten. That part of the food obtained beneath the surface is found by the laborious process of digging burrows through the soil. Openings to the surface are made every few feet for the purpose of disposing of the soil excavated. If food plants chance to stand quite near to these openings they are cut and drawn into the burrow. If seen at a little distance from the burrow the animal prefers tunneling to them, rather than venture a few feet on the surface, so reluctant is the animal to expose itself by leaving its burrow. They are cautious but GEOMYID& 135 not cowardly. They seem to fear nothing and will attack any- thing that molests them. Being subterranean in habit, working in the dark, they are active at all hours, but are least so in the middle of the day. In soft earth the digging is done with the fore feet, but in hard soil the incisors are used to loosen it. As the earth is loosened it is scratched back to the hind feet which pass it on until enough for a load is ready, when the animal turns around, brings the wrists together under the chin, the fore feet extended out- ward, and then, propelled only by the hind feet, the dirt is pushed ahead of the animal to the outer opening of the burrow, when the dirt is thrown out by a quick flirt. They run*backward nearly as rapidly and easily as forward, the sensitive tip of the tail being used as a guide. The pelage of the adult is commonly somewhat different from that of the young, and in some species there is also seasonal ‘changes. They breed pretty much throughout the year or through the warm months in the colder part of their habitat, but it is not known whether the females breed more than once a year. The young are born in an undeveloped condition. Two to six constitute a litter. Genus Thomomys MaximiLian. (Heap—mousc. ) Front surface of incisor without a longitudinal groove, or but a small one very near the inner edge; upper and lower molars with two enamel plates, one anterior, one posterior; external ears evident though small; four pairs of mammez in most species. Dental formula, J, i—1; C,o—o; P, 1—1; M, 3—3 X2=20. Thomomys fulvus nigricans Ruoaps. (Fulvous; blackish. ) TAWNEY POCKET-GOPHER. Variable in color; above usually yellowish bistre mixed with black dorsally from crown to hips; sides lighter; below grayish 4 136 CALIFORNIA MAMMALS. white tinged with buff; the slaty bases of the hairs showing through more or less according to the amount of wear; feet and tail pale buffy gray. A proportion are much darker, clove brown or dark sepia, and usually larger than the average. Others are redder, tawny, cinnamon or russet, and smaller than the average. The skull is small, light and comparatively smooth; rostrum broad and rather short; nasals long and narrow, projecting as far forward as the incisors; interparietal rectangular or pentagonal; temporal ridges small and wide apart except in aged animals; zygomata widest anteriorly in fully adult animals; groove near inner edge of upper incisor small but usually distinct. Length about 200 mm. (7.87 inches); tail vertebra 66 (2.60) ; hind foot 27 (1.06); ear from crown 6 (.24). Weight three to five ounces. Type locality, Witch Creek, San Diego County, Califorina. Abundant in the mountains and foothills of southern Calif- ornia. Less common in the mesas and valleys. Thomomys monticolus ALLEN. ( Mountain—inhabiting. ) MOUNTAIN POCKET-GOPHER. Pelage long and soft; ears long; above fawn color or mars brown with a silvery gloss; sides and lower parts buff, the plumbeous bases of the hairs showing through; feet and tail pale buff; skull similar to that of fulcus nigricans, but with nasals shorter and wider anteriorly; zygomata widest posteriorly; in- terparietal broadly petagonal. Length about 195 mm. (7.70 inches); tail vertebra 66 (2.70) ; hind foot 26 (1.03). Type locality, Mount Tallac, Eldorado County, California. Common in the northern Sierra Nevada and throughout the northeastern part of California, from about 4,000 feet altitude nearly to timberline. GEOMYIDZ 137 Thomomys monticolus pinetorum Merrtam. (Of the pines. ) PINE-WOODS POCKET-GOPHER. Similar to monticolus but smaller, skull shorter with broader zygomata ; color paler; above pale fulvous; nose dusky. Type locality, Sisson, Siskiyou County, California. Common around the base of Mount Shasta, grading grad- ually into monticolus on the higher parts of the mountain. Thomomys alpinus Merriam. (Alpine.) ALPINE POCKET-GOPHER. Similar to fulvus. Light pelage; above sepia or drab brown suffused with fulvous; below plumbeous washed with ochraceous buff. Dark Pelage; plumbeous tipped with russet brown. Skull small, rounded; nasals rather short ; zygomata wide. Length about 220 mm. (8.65 inches); tail vertebre 63 (2.50); hind foot 30 (1.20). Type locality, Cottonwood Meadows, Mount Whitney, Cali- fornia. Common in the high southern Sierra Nevada. Thomomys perpallidus Merriam. (Very pale.) PALLID POCKET-GOPHER. Very pale; varying (principally with locality) from yellow- ish drab to ochraceous buff, cream buff or grayish white; below dull white, the hairs sometimes white to the roots but more often pale plumbeous basally; mouth parts more or less brown; skull rather large, smooth; rostrum rather wide; nasals long, depressed, rather narrow, squarish posteriorly; frontal flat, often slightly concave; interparietal about as long as wide, the front outline subcircular. Length about 233 mm. (9.15 inches); tail vertebre 85 (3.35); hind foot 33 (1.30); ear from crown 6 (.24). 138 CALIFORNIA MAMMALS. Type locality, Palm Spring in the northwestern corner of the Colorado Desert, California. The Pallid Pocket-Gopher is found in the arid Colorado and Mojave Deserts. It is common in a few localities, but from the barren nature of this region it is necessarily rare in many parts of these Deserts. Thomomys perpallidus perpes Merriam. GOLDEN POCKET-GOPHER. Above varying from yellowish drab to grayish ochraceous buff; face ashy; below grayish white; throat white; mouth parts ashy or plumbeous; feet and tail grayish white; skull somewhat smaller than that of perpallidus; rostrum smaller; interparietal squarish. Length about 212 mm. (8.25 inches); tail vertebrae 66 (2.67) ; hind foot 29 (1.15). Type locality, Lone Pine, Inyo County, California. Owen Valley and the western part of the Mojave Desert. GEOMYIDA 139 Thomomys bottze [poux and Gervais. CALIFORNIA POCKET-GOPHER. Above sepia mixed with black; sides paler; below slaty tip- ped with cinnamon or ochraceous buff; mouth and nose black- ish except around the incisors where it is white; lining of pockets often white, but their edges blackish; feet dull white; tail dusky above basally, the remainder whitish. Young; paler and tinged with fulvous. Skull massive, angular; rostrum short and nar- California Pocket Gopher. One-third life size. row; nasals short; incisors projecting forward, their front surfaces paler than usual in this genus; zygomata broad, widest posteriorly; interparie- ie tel small; triangular, narrowed and Showing entrence 3 of externdt cheek=pouches nearly overgrown by the temporal ridges of old age; occiput truncated ry posteriorly. Length about 240 mm. (g.50 inches); tail vertebrae 75 (3); hind foot 32 (1.25). Type locality, near Monterey, California. Abundant in the coast region of central California. The various species of Pocket-Gophers found in California (except in the deserts) are so much alike externally and in hab- its that the following account of their habits will apply to all. Pocket-Gophers are thoroughly distributed throughout the 140 CALIFORNIA MAMMALS. State wherever vegetation grows, from the seacoast to as high in the mountains as sufficient soil to work in ovcurs, except in land regularly subject to overflow. They are naturally most abundant in rich loose soils. The food is principally the roots and succulent stems of plants, such as garden vegetables generally, potatoes, alfalfa, etc., as well as very many species of wild plants. The roots of fruit trees are often eaten, though in large trees but a portion of the the roots of any particular tree is eaten and the ill effects are not as noticeable as with young trees. The burrows or runs are commonly less than a foot below the surface, but vary with soil and season; as the object in dig- ging the run is to find food it is naturally dug at the depth where roots are most abundant. ‘These runs are practically endless as they are being extended daily, except perhaps in the dry season, when comparatively little new work is done on account of the hardness of the soil. In very few localities in this State are the Gophers hindered by frozen soil, but in such places they work deeper, or occasionally on the surface under the snow, these sur- face runs being often filled with earth later, becoming very not- iceable after the snow has melted. Openings to the surface are made at varying intervals for the purpose of getting rid of the soil excavated in making the runs, the dirt being thrown out in mounds containing a quart to a peck of earth. When the run has been excavated an inconvenient distance beyond the last open- ing that is closed and a new one made. ‘These openings made for the purpose of carrying out the loosened earth are started at the side of the main run, gradually turning upward, ana come to the surface one or two feet at one side of the main run. When abandoned these side runs are often packed full of earth. The Gophers pass back and forth several times a day over the newer part of the main run, probably spending their hours of repose some distance from the new end of the burrow. In some seasons they make a nest of dry grass, but in the warmer GEOMYID& 141 part of the year they apparently use none, but lie down wherever they happen to be. They are more or less active at all hours, but much less earth is thrown out during the hours of bright sun- shine. No doubt the female makes a warm nest for her young, but I have never happened to find such a home, and it is prob- ably deeper in the ground than the main run and ordinary sleep- ing nests. I-have taken females suckling young at all times of the year. It is not known whether they have more than one litter annually or not, but it is probable that they do. Two to six young constitute a litter. I find in my note book a note of having taken a female containing six foetuses, on March tenth. e It is seldom that more than one Gopher inhabits a run. At times a pair may be found inhabiting a run, but not often. The young shift for themselves before they are half grown. These young are very difficult to trap because of their small size. I have taken them from runs that would hardly admit my thumb. In such cases several may be found in a quite small area. No doubt the young commence work from the nest and gradually drift apart. Many people suppose that the earth thrown out is carried in the cheek pouches by the Pocket Gophers, but such is not the case, the pouches being used only for carrying food. They seem to prefer to carry the food some distance back in the run to eat it in quiet. Small bits of food are pocketed as found and work is continued until sufficient is gotten to be worth while stopping to eat or store away. Considerable quantities of food are stored for future use, though not to as great an extent here as in colder climates. If food is seen or smelled on the surface at a little distance from the opening of the run the Gopher prefers running a tunnel to it rather than to ven- ture far on the surface. The little fellows are good engineers, for I have many times seen pumpkins and melons eaten to a 142 CALIFORNIA MAMMALS. shell with no sign of the run beneath until the shell is picked up or rolled over, and no mound within several feet. The strong incisor teeth are apparently used in hard soil in loosening the earth, but most of the digging is done with the fore feet. When sufficient soil is loosened and thrown behind it the Gopher turns around, brings the wrists together beneath the chin with the palms in front and the claws outward be- hind the pile of loosened earth and pushes the pile before it, using the hind feet only in propulsion. The animal can push a much larger amount before it than it could carry in its pockets. On reaching the surface a flip of the fore feet throws the earth a little distance, the action appearing as if the earth was thrown out of the pockets with the fore feet. Sometimes the Pocket-Gopher$ run backward instead of turning around in the run, especially if the run happens to be in hard earth and narrow. Dr. Merriam kept a live Gopher in captivity to study its habits, and found that it could run backward easily, and nearly as rapidly as forward. The nearly naked tail is used as a feeler, and is quite sensitive as an organ of touch. The hearing appears to be fairly good, but the sight is poor. Smell is probably the principal sense in locating food. Pocket-Gophers are sharp tempered animals and very cour- ageous. They do not hesitate to attack anything that inter- feres with them, and the bite of a trapped Gopher is sufficiently severe to be dreaded. From the circumstance of their living alone one may surmise that they are surly and quarrelsome. Pocket-Gophers are a serious pest to the farmer and fruit grower. Having had considerable experience in trapping them I may be able to give some useful hints to those who may wish to try to get rid of them. Poison is not as useful in the case of Gophers as it is with some other pests, as it is likely to be pushed out of the run instead of being eaten. Poisoned grain can be used, or a little crushed strychnine in a raisin or a bit of apple or potato. If any of these be used place it in the main run after clearing out all lumps of dirt and close the run thor- GFEOMYIDA 143 oughly. It will thus be more apt to be eaten. A “smoker” has been advocated and sold for the purpose of suffocating Gophers. This implement works well with ground squirrels but is not often effective with Gophers on account of the great length of the runs and the difficulty of forcing the smoke far enough. Bi-sulphide of carbon is moderately effective with Gophers. ‘To use it pour two tablespoonfuls on a bunch of rags, waste or cotton and place it in the main run where fresh mounds show the recent presence of the animal. Close the opening thor- oughly to retain the fumes. Remember that the fumes are ex- plosive. The most effective of all methods where it is practic- able is drowning by flooding with water when thoroughly done. For many people the main reliance must be on traps. Trapping is most effective in the rainy season. The soil is then in the best condition to work and the Gophers are more active and less suspicious. By persistent trapping a place may be cleared of Gophers; afterward one must continually watch around the borders of the place to catch the immigrants as they begin to work in. Neighbors joining in the work can make it most effective. Two or three kinds of traps are needed for different conditions in trapping. Some persons prefer one style, others another, there is considerable choice and several efficient styles. I prefer the “C V” trap supplemented with the common steel trap, Newhouse pattern, No. O size. The small size of “C V” is most useful as the large size is too iarge for most runs. If cats have the run of the place the traps will need staking or they may be carried away; a strong cord can be used on the “C V” traps. The “C V” traps as usually made have the triggers too far from the entrance. If they are of the pattern having sheet iron triggers set the trap and push the trigger toward the entrance, bending it considerably, so that the trigger will be pushed before the Gopher gets so far through the entrance. The other implements necessary are a shovel, a bit of heavy hoop iron bent in a fish-hook shape for widening the opening and drawing out the earth, some bits of board for 144 CALIFORNIA MAMMALS. closing the openings, and, if you have many traps out, stakes to mark the places where the traps are set. The rounds should be made twice a day, early in the morn- ing and at night, as the Gophers are then actively at work. Look for fresh mounds. If an open holeis found widen it sufficient- ly to insert a “C V” its full length. Leave that hole open as the Gopher will be back in a few minutes to close it. Ifa fresh mound is found with the exit closed use the shovel carefully. If the run is not readily found it may perhaps be found by feeling with the end of the hoop iron or the finger, as the earth in the side run should be softer than its surroundings. Try to find the side run without breaking into the main run. It you find it, set a“C V” in it if there is room out side of the main run, and nearly close the run with a piece of board, leaving a little light to tempt the Gopher to close the hole. If there is not room enough in the side run to use a “C V” set a steel trap in the main run with the pan and jaws level with the floor of the run. See that no lumps of dirt are left in the run to give the Gopher warning. Close the side run thoroughly in this case as you are trying to get the Gopher as he makes the rounds of his run as usual. If you chance to open the main run at a “C V" in each branch and close the openings tight behind them. The Gophers ‘will fill a considerable proportion of the traps with earth and fail to spring them. Reset the traps and close the hole. \When traps are set in the main run the Gophers are more likely to fill them and make a new run a few inches behind the old run. Now and then a Gopher will prove to be cunning and difficult to catch. After trying such an animal a few times change to some other form of trap. It is seldom that a Gopher is too smart to be caught, but I have been baffled a few times; commonly they are careless and easily caught. A good cat that will hunt Gophers is valuable, but the most efficient helper that a farmer can have is a pair of the much persecuted barn owls. These birds live principally on Gophers, and during the breeding season a pair will catch a dozen each GEOMYID 145 night. Weasels are very fond of Gophers and are able to follow the runs of adults. Bull snakes or gopher snakes feed principally on gophers. They have no venom and should never be de- stroyed. * Thomomys bottz pallescens Ruoans. (Pale.) SOUTHERN POCKET-GOPHER. Paler and more tawny than botte; an indistinct dusky dor- sal stripe; sides usually with an indistinct ochraceous buff stripe separating the color of the upper parts from that of the belly; avéraging larger than botte; skull similar; rostrum broader; in- cisors heavier and their front surfaces deeper yellow. Type locality, San Bernardino Valley, California. The Southern Pocket-Gopher is abundant in southern Cali- fornia along the coast and in the valleys and is more or less common in the mountains. One April morning I had an opportunity to watch a South- ern Pocket-Gopher at work. It was ‘wary but not shy. It saw .and watched me several seconds at a time. It paid a little at- tention to vocal sounds that I made but not much. It seemed to try to scent me. The light breeze blew toward it, distance ten feet. When first noticed I think its pockets were empty. I saw it gather some plants, including young wild oats. The transfers of plants from mouth to pockets were made very quick- ly, but I could not see just how it was done as its back was toward me, though I could see the pockets swell. It went down and brought more earth after a few seconds disappearance, repeating this several times, occasionally picking more “greens.” That is, it did not immediately go off and eat or cache its food, but worked on with the food in its pockets, occasionally adding to its amount. In coming out of the run to gather the plants it did not walk at its full height, but crouched, dragging its belly on the ground, the hips and shoulders showing prominent- ly above the vertebral outline. In pushing out the earth before 146 CALIFORNIA MAMMALS. it the nose was kept raised over it, not buried in the earth. The retreat was almost instantaneous after the earth was flirted away. The following Pocket Gophers I have not seen. I give a summary of the original descriptions. Thomomys laticeps Barrp. BROAD-HEADED POCKET-GOPHER. Above yellowish brown, blackish dorsally ; below tinged with reddish; tail about half as long as head and body; feet large; skull very broad; rostrum short. Length 178 mm. (7.65 inches) ; tail vertebree 64 (2.50) ; hind foot 27 (1.06). Type locality, near Humboldt Bay, California. Thomomys leucodon navus MErrIAM. RED BLUFF POCKET-GOPHER. Above fulvous brown; below buff ochraceous; skull small but very strong and ivory-like in texture; zygomata broadest pos- teriorly ; nasals cuneate, usually notched behind; incisors project- ing forward, their faces yellow. Length 196 mm. (7.75 inches); tail vertebre 65 (2.55); hind foot 27 (1.06). Type locality, Red Bluff, California. Thomomys angularis Merriam. SAN JOAQUIN POCKET-GOPHER. Above fulvous grizzled with black; below plumbeous strong- ly washed with buffy ochraceous; feet and tail whitish; skull large and massive; braincase broad; nasals emarginate posteriorly; in- terorbital region rounded. Length 255 mm. (10 inches) ; tail vertebre 75 (3); hina foot 32 (1.25). Type locality, Los Banos, Merced County, California. GEOMYIDA 147 Thomomys angularis pascalis MrErriam. FRESNO POCKET-GOPHER. Similar to angwlaris but smaller; above more buffy yellow; below very much paler and often marbled with patches of white; skull smaller and smoother. Length 210 mm. (8.25 inches) ; tail vertebree 70 (2.75); hind foot 30 (1.18). Type locality, Fresno, California. Thomomys operarius Merriam. OWEN VALLEY POCKET-GOPHER Above buffy yellowish or buff gray; below plumbeous strongly washed with white; skull short, broad and massive; rostrum short and broad; interorbital region broad; temporal ridges well marked. Length 217 mm. (8.50 inches) ; tail vertebree 67 (2.65) ; hind foot 29 (1.15). Type locality, Keeler, Inyo County, California. Thomomys cabazonze Merriam. CABEZON POCKET-GOPHER. Above varying from buffy ochraceous to dull drab brown; below whitish or pale salmon; skull small, angular; zygomata broadest anteriorly ; interparietal rectangular; nasals long. Length 220 mm. (8.25 inches); tail vertebrae 78 (3.06) ; hind foot 30 (1.15). Type locality, Cabezon, San Gorgonio Pass, Riverside County, California. Thomomys fuscus fisheri Mrrriam. FISHER POCKET-GOPHER. Similar to fuscus but very much paler, grayish brown in- stead of dull fulvous brown; skull similar to that of fuscus but shorter; zygomata more squarely spreading; premaxillz shorter and broader posteriorly ; bulle less swollen; incisors narrower. Length 192 mm. (7.60 inches) ; tail vertebre 58 (2.30); hind foot 25 (1). Type locality, Beckwith, Plumas County, California. 148 CALIFORNIA MAMMALS. Family Heteromyidee. Pocket-Rats and Pocket-Mice. Cheek pockets large and opening externally, similar to ‘those of Geomvyide ; fore legs of moderate length; hind legs more or less lengthened; tail usually as long as or longer than head and body; skull thin and smooth; rostrum long and tapering; nasals long, projecting beyond the incisors and semi-tubular an- teriorly; frontals wide; no inteorbital foramen but a perforation on the sides of the maxillary instead; occipital region formed mostly of the mastoids; temporal region inflated, sometimes enor- mously; zygomatic arches very slender, depressed; lower jaw small and weak; coronoid process very small; angular process twisted obliquely. Dental formula, I, 1—1; C, o—o; P, 1—1; M, 9—3X2—=20. This is a small family of seven genera, divided in two sub- families. The family is American, Mexico being apparently the center of distribution, none of the family being found east of the Mississippi River. It has been very imperfectly known until recently and has many interesting peculiarities. A singular characteristic of Pocket-Rats and Pocket-Mice is their ability to go without water and if necessary without eating moist food. Most species inhabit arid regions or deserts, though a few species are found in regions of moderate rainfall, provided the climate is comparatively warm. ‘They do not endure cold well, very few being able to live in localities where the ground freezes too hard to plow. The food is principally seeds, but leaves and stems of plants are occasionally eaten. Seeds are commonly stored in chambers of burrows or sometimes in surface caches. In some of the Californian valleys harm is done by members of this family through carrying off and hiding grain, though it is seldom done to a noticeable extent. Yet the total loss to grain growers must annually amount to a considerable sum, because of the abundance and industry of these little animals. I am not aware of any other harm being done by them and there is some compen- HETEROMYIDA 149 sation in the quantity of weed seeds destroyed ‘The’r mouths are small; the largest food J have known them to eat is acorns. The family is digitigrade; nocturnal; terrestrial and sub- terranean, living in burrows but gathering their food from the surface. There is little if any seasonal change of pelage. The sexes are alike, but the young sometimes differ from the adults. Subfamily Dipodomyinee Skull triangular in general outline; molars rootless; tem- poral region, enormously inflated; interparietal small, narrowed from the sides, sometimes obliterated; hind legs lengthened; size comparatively large. Genus Perodipus Firztncrer. (Pouch—two-footed. ) Upper incisors grooved in front; temporal region greatly inflated ; supraoccipetal, interparietal and parietals greatly reduced im area; zygomatic arch expanded to a large thin plate in front of the orbit; hind feet with five toes, the inner toe minute and situated higher than usual; soles heavily haired; tail longer than head and body, four striped; eyes large; ears large, rounded, the front border inflexed; pelage soft, without spines. The pattern of coloration of all the species of Perodipus and Dipodomys is the same. here is a dark patch at the base of the whiskers, a white spot over the eye, another below or behind the ear, a white stripe across the thighs to the base of the tail, a dark stripe on the upper side of the tail, usually another on the under side leaving the sides of the tail white, fore feet and all the lower parts from mouth to tail white to the roots of the hairs. The beginner will find the species of Pcrodipus very puzzl- ing, and will probably be unable to assign his specimens satis- factorily. The division of this genus has been carried to an unnecessary refinement. I have omitted several nominal species or subspecies rather than add to the difficulty. Dipodomys is not quite so difficult, as size and color are more diversified. 150 CALIFORNIA MAMMALS. Perodipus agilis GamBEL. (Nimble.) GAMBEL POCKET RAT. Above yellowish bistre mixed with black, the basal half or three-fourths of the hairs slate gray; sides ochraceous buff; tail crested, the hairs toward the end being lengthened, principal- ly on the upper side; upper tail stripe as dark as the back, the lower stripe but little lighter and continuous to the end, but tip usually with white preponderating; soles of hind feet blackish; ankles dull black posteriorly; ears large; skull narrow; supra- occipetal very narrow; interparietal narrow; nasals narrow, the outer edges of the posterior half parallel; maxillary arches com- partively narrow. Young; darker, more slaty; hairs of terminal part of tail not lengthened. Length about 288 mm. (11.33 inches); tail vertebre 180 (7.10) hind foot 42 (1.65); ear from crown 14 (.55). Type locality, Los Angeles, California. Gambel Pocket-Rats are common in the coast region of southern California and on the sides of the mountains to 3,000 feet altitude or higher. They are not often found in brush, or in rocky ground, preferng open valleys having a good growth of annual plants, the seeds and leaves of these plants forming the principal part of their food. Grain is sometimes stored in their burrows, but grain land, especially if summer-fallowed, af- fords too little subsistence in the dry part of the year, and is usually deserted for places where seed producing plants remain on the ground all the year. Occasionally the borders of grain lands are invaded, but the depredations of Pocket-Rats are rare- ly serious, and these are partly balanced by the large amount of weed seeds eaten. The following notes on an opened burrow of this species are given to illustrate some of their habits, which are similar to those of Pocket-Rats in general. I had noticed the entrance to a burrow at the side of a path a few yards from the kitchen door of my house; the burrow had been used some months, still the house cat (a very good mouser) had not caught the oc- HETEROMYIDA& 151 cupant. One day in January I set a box trap near the burrow and the next morning found a Gambel Pocket-Rat in it. This animal I kept alive in a box. The second evening following, I found my dog playing with a young Pocket-Rat near the mouth of the burrow. The next day I dug open the burrow to see what its internal arrangement was. ‘The burrow was oval in section, the perpendicular diameter greatest, being a little more than two inches. The entrance sloped gently downward, and the main burrow was about eight inches below the surface for about eight feet, then about a foot and a half below for six feet, where it terminated in another entrance which I had not previously noticed, as it was under a small perennial plant. This last en- trance was nearly perpendicular for six or seven inches. There were half a dozen branches to the burrow, varying from a few inches to three feet in length, each terminating in a chamber of greater diameter than the burrow. In one chamber was the nest, a mass of nearly a quart of the hulls of grass seeds. The other chambers were used as gran- aries. These contained acorns, seeds of poverty grass, and of chrysanthemums and other flowers from a bed in front of the house. Most of the granaries were closed with earth. The open one was but part full and probably was the one from which food was then being used. The various granaries contained respec- tively 149, 27, 24, 131, 139 and 26 acorns. The weight of the acorns and seed was forty two ounces; that of the adult female was two and a quarter ounces. In the burrow, a foot or more from the nest was another quite young Pocket-Rat. It seemed to very cold and hungry and made a grating squeaking sound, which it kept up some time after being put with its mother. I could not see that it suckled, and think it did not, though it crept under its mother and persisted in staying there. It ate shortly after being put with its mother. ; The acorns in the granaries were brought from a tree stand- ing more than a hundred feet from the burrow. On trial an 152 CALIFORNIA MAMMALS. acorn was found to slip easily into a cheek pouch, the tip of the acorn projecting outside. The partly eaten acorns were com- menced from the base, probably because that part of the shell covered by the cup was thinner and more easily bitten through. There was no pile of earth at either entrance and the upper entrance, under the plant, was closed with earth. The absence of a pile of earth at the entrance was not unusual, but more often the pile of earth is present. The entrances of burrows are most frequently closed in the daytime. This burrow was longer Gambel Pocket Rat. Nearly one-half life size. than usual, and probably contained a greater amount of food than is usual. The gait is a series of leaps; if hurried these are very rapid and three or four.feet in length. As they can turn very abruptly, it is very difficult for a dog to catch one. In leaping from a position of rest they can go off as if a spring in them had been suddenly released. ‘They cannot continue a rapid run far; the longest that I remember seeing in the daytime was about fifty yards, when the animal entered its burrow. I have several times seen Pocket-Rats abroad in the daytime, but this is not a common habit. HETEROMY1DA. . 153 The only vocal sounds that I have heard from adults are squeaks of pain when caught in a trap or otherwise hurt. The greater number of young are born in the spring, but reproduc- tion continues to some extent through the summer and autumn. Three to five young at a birth appear to be the usual number. Pocket-Rats make interesting pets. They do not resent be- ing handled, though not really liking it. They do not often try to escape when held in the hands. They require considerable provocation and rough usage before attempting to bite. As they can open the mouth but a short distance and the upper incisors are bent backwards they are unable to bite deeply, scarcely more than through the skin. They keep in good health in captivity on grain alone. They do not bear cold well. Perodipus ingens MERRIAM. BIG POCKET-RAT. Size large; above buffy ochraceous; tail with upper and lower stripes black and a white pencil; ears small; skull very large and massive. Length about 350 mm. (13.75 inches) ; tail vertebrae 190 (7.50); hind foot 52 (2.05). Type locality, Painted Rock, San Luis Obispo County, Cali- fornia. Known only from the Carrizo Plain. Perodipus venustus Merriam. (Beautiful.) SANTA CRUZ POCKET-RAT. Similar to agilis, but very much darker; top of head, back, and thigh patches dusky, finely grizzled with ochraceous; hairs: of rump forming a black patch just in front of basal white ring of tail. Length about 315 mm. (12.40 inches) ; tail vertebre 19¢ (7.50); hind foot 45 (1.77). Type locality, Santa Cruz, California. Santa Cruz and Santa Lucia Mountains. 154 CALIFORNIA MAMMALS. Perodipus goldmani Mrrriam. (For L. J. Goldman.) GOLDMAN POCKET-RAT. Darker than agilis and lighter than venustus; bases of hairs of upper parts slaty black; ears smaller than agilis; dark tail stripes becoming lighter colored toward tip; skull differing from that of agilis, wider, particularly across the maxillary arches; nasals narrowed posteriorly and slightly constricted in the mid- dle, but considerably wider in the anterior third; supraoccipetal very narrow; interparietal small and very narrow. Length about 313 mm. (12.30 inches); tail vertebra 185 (7.30) ; hind foot 45 (1.77). Type locality, Salinas, Monterey County, California. Salinas Valley and other valleys of that general region. Perodipus panamintus Merriam. (Of the Panamint Mountains. ) PANAMINT POCKET-RAT. Similar to agilis; lighter colored with much less black in- termixed; ears small; the lower tail stripe becomes obsolete on the terminal third; soles gray; skull similar to that of goldmani but anterior third of nasals narrower; supraoccipetal wider; in- terparietal wider, its width half to two-thirds its length. Length about 300 mm. (11.80 inches) ; tail vertebrae 180 (7.10) ; hind foot 45 (1.77). Type locality, Panamint Mountains, California. Panamint Pocket-Rats are found throughout the Mojave Desert region, though they are common in but few places. Perodipus streatori Mrrrtam. (For C. P. Streator.) STREATOR POCKET-RAT. Similar to agilis but larger; ears smaller; top of tail white; skull larger and heavier; fronto-parietal suture strongly convex forward in the middle. Length about 295 mm. (11.60 inches) ; tail vertebrae 180 (7,10) ; hind foot 43 (1.70). HETEROMYIDAE 155 Type locality, Carbondale, Mariposa County, California. Western foothills of the Sierra Nevada. Perodipus microps Merriam. (Minute—like.) INYO POCKET-RAT. Small; ears small; above pale buffy ochraceous; skull small, narrow, with narrow braincase. Length about 270 mm. (10.60 inches); tail vertebre 158 (6.20) ; hind foot 41 (1.62). Type locality, Lone Pine, Inyo County, California. Northern part of the Mojave Desert. Genus Dipodomys Gray. (T'wo-footed—mouse. ) Hind foot with but four toes, otherwise similar to Perodipus, but varying more in color and size. See under Perodipus for color pattern. Dipodomys californicus MrErriam., CALIFORNIA POCKET-RAT. Very similar to Perodipus goldmani in color and size; skull similar but narrower interorbitally, nasals narrower; supraoc- cipetal wider ; mastoids and audital bullee much smaller. Length about 300 mm. (11.80 inches) ; tail vertebra 185 (7.80) ; hind foot 43 (1.70). California Pocket-Rats probably occur in all the northern coast Counties. I have taken them in Lake and Mendocino Counties. In the Pacific Railroad Reports, Dr. Suckley says that a “Kangaroo Rat” is common on the Salmon River; this is doubtless the present species. They inhabit brush and forests as well as open land, though probably not living in dense forests. I trapped one among redwoods near an open glade. I did not observe anything peculiar in their habits in other respects. They did not seem to be common. One trapped in an old vacant house near the end of April, contained three foetuses. 156 CALIFORNIA MAMMALS. Dipodomys californicus pallidulus Bancs. COLUSA POCKET-RAT. Similar to californicus but paler; above wood brown, shad- ing to cinnamon on the sides; tail above sepia, beneath white. Length 290 mm. (11.40 inches) ; tail vertebrae 181 (7.15); hind foot 42 (1.65). Type locality, Sites, Colusa County, California. Dipodomys deserti StepuEens. (Of the desert.) DESERT POCKET-RAT. Large and pale; above grayish buff, the hairs ashy gray at base; shoulders and upper part of sides lighter, the hairs white at base; white spot behind the ear large, sometimes reaching the shoulder; soles of hind feet dirty white; upper side of tail white at base, then buffy or brownish to past the middle, then drab gray to the white tip, under side white; other marking as usual; skull large; inflation of mastoids extreme; supraoccipetal nar- rowed almost to a line on the upper surface; interparietal usually obliterated in adults. Length about 340 mm. (13.40 inches) ; tail vertebrae 205 (6.10) ; hind foot 53 (2.10) ; ear from crown 15 (.60). Type locality, Mojave River, near Hesperia, California. Desert Pocket-Rats occur in southern California, southern Nevada, western Arizona, northwestern Sonora and northeastern Lower California. The northwestern extreme of their range is Owen Valley, Inyo County, where I have trapped them near Alvord. None have been taken on the coast side of the moun- tains. This species occurs in small colonies, less commonly in pairs, rarely singly. The habitation is often a labyrinth of intercom- municating burrows from a few inches to two feet beneath the surface, commonly under a low mound formed of sand and dust drifted about a shrub, but sometimes in a level space. Frequent- ly the interior is honeycombed with burrows until little more than HETEROMYIDA. : 157 a surface shell remains and one breaks through on stepping there. A horse soon learns to avoid these burrows, walking being suf- ficiently tiresome in this sandy region without falling into rat- nests. Not all the burrows are excavated to this extent however, many being simple burrows a few feet in length with two en- trances, or with a branch or two. In places where much camping is done, such as by springs on the road from one mining camp to another, the Pocket-Rats are in the habit of coming about camp at night to pick up grain scattered by the horses and other food, becoming comparatively tame, as no one harms them. I never knew a dog to catch one, as they get under way very quickly, and vanish in the nearest burrow ; in such places they have many burrows, perhaps for just such emergencies. I have kept Desert Pocket-Rats in captivity several times, at one time having two for several months. Some of the habits of these as observed in captivity are worth recording. The first I kept was caught at the type locality in November. At that season food had become scarce and they were hungry and easily trapped. The box trap was set a few yards from camp; hearing the door fall I immediately took the animal out and put it in a cage and put some grain in the cage. It was amusing to see the eagerness with which it began filling its pockets. It stuffed them so full that it must have been almost painful. It would not stop to eat, but hunted about for some exit; not finding one it ejected the contents of its pockets in a corner out of the firelight and went back for more. ‘This time it ate a little grain, but soon gathered the remainder and deposited it with the first. After eating a little more it refilled its pockets and hunted about for a better place to make a cache, seeming to think its first choice insecure. On arriving home I put a little dry earth in the cage. This pleased the Pocket-Rats and they enjoyed a good dust bath, rolling in the earth and pushing along on their bellies. They looked much better for their dust bath, the roughened pelage becoming smooth and glossy. 158 CALIFORNIA MAMMALS. None of my captive Pocket-Rats would drink water. For food they preferred grain, but also ate such vegetables as sweet potatoes and the leaves of beets and cabbages. They consumed little more than a heaping tablespoonful of wheat or barley in twenty-four hours. The two pockets together held a heaping tablespoonful of grain and therefore would carry nearly a full day’s ration. The pockets are filled by the fore feet used as hands. The filling is done so rapidly that when a hard grain, like wheat, is used a continuous rattling sound is made. The ejection of the grain is aided by a forward squeezing’ motion of the fore feet, each foot making two or three quick forward passes scarcely occupying a second of time. The position at rest was a curious one. At first the anima! stood on all four feet, with the entire sole of the hind foot resting on the ground, some of the weight coming on the fore feet. Presently the hind feet would hitch forward until the center of gravity came over the hind feet, thus taking all the weight, then often the fore part of the body would be raised slightly and the fore feet drawn up against the body. If dis- posed to sleep the bright eyes would slowly close, the fore feet droop until touching the ground, the nose come slowly down and backward until resting between the toes of the hind feet, and the now sleeping animal was nearly as round as a ball. This ap- pears to be the common sleeping posture. If there be room the tail will be extended backward in a nearly straight line, but in cramped quarters it will be curved to one side or even alongside of the body, but in either case the basal part will be extended back far enough to give some support. Dipodomys merriami simiolus Ruoaps. (For Dr. C. Hart Merriam; a little mimic.) MIMIC POCKET-RAT. Very similar in color to deserti, but much smaller; tip of tail HETEROMYID2A 159 dark and a light brown stripe on under side of tail; soles of hind feet often partly bare. : Length about 240 mm. (9.50 inches); tail vertebra 150 (5.90) ; hind foot 37 (1.45); ear from crown ro (.40). Type locality, Palm Spring (Agua Caliente), western end of the Colorado Desert, California. Mimic Pocket-Rats are common in many parts of the Colo- rado and Mojave Deserts. A few occur on the northeastern slope of the mountains bordering the Colorado Desert, and-in one place across the divide on the upper part of the Temecula River. These last are intermediate between simiolus and parvus, and perhaps should be classed with the latter subspecies. Those taken along the western border of the Colorado Desert are rather larger than the average elsewhere. They inhabit sandy land having a brief growth of annuals, the seeds of these being stored for use during the remainder of the year. Ina few places where plants are plentiful these animals are common. They are crepuscular and nocturnal, not shy, often coming around the camp fire. They have several times run over me as I lay sleeping on the ground, and one even ran across my feet as I sat quietly by the camp fire alone. Their tracks in the morning show that they have gleaned thoroughly about camp the previous night for crumbs of bread, grain or other food. The young are born mostly in April and May, and are oftenest four in number. Dipodomys merriami parvus Ruoaps. ( Little.) SAN BERNARDINO POCKET-RAT. Above broccoli brown, slightly tipped with black, the greater part of the hairs slate gray; sides light wood brown or clay color; soles of hind feet and leg above the heel blackish; upper and lower tail stripes distinct, blackish to end; side stripes white to mixed tip. Slightly smaller than simtolus. Type locality, south side of San Bernardino Valley, Califor- nia. This subspecies appears to be rare. The few known speci- 160 CALIFORNIA MAMMALS. mens have been taken in Reche Canon, a few miles south of San Bernardino. ‘heir habits appear to be like those of the species in general. Dipodomys merriami nitratus MERRIAM. KEELER POCKET-RAT. Similar to simiolus; averaging smaller; hind feet longer; dusky markings obsolete; hairs of back not tipped with black. Type locality, Keeler, Inyo County, California. Habitat, Owen Valley. Dipodomys merriami nitratoides Merriam. (Re- sembling mitratwus.) TULARE POCKET-RAT. “Similar to nitratus in size and and color but with strongly marked facial crescents meeting over bridge of nose; ears smal- ” ler. Type locality, Tipton, Tulare County, California. Dipodomys merriami exilis Merriam. (Smallest. ) LEAST POCKET-RAT. Upper parts nearly uniform clay-color, darkened with sepia from abundant admixture of black tipped hairs, and darkest on the head; sides tinged with ochraceous buff; black crescents at base of whiskers sharply defined and meeting on the bridge of the nose; upper and lower tail stripes sooty blackish, meeting along terminal third, thus interrupting the white side stripes. Length about 227 mm. (g inches); tail vertebre 136 (5.35); hind foot 35 (1.38). Type locality, Fresno, California. Genus Microdipodops Mrrriam. (Small—two footed-— like, ) General appearance similar to that of a large thickset HETEROMYID2& 161 Perognathus with a large head and long hind feet; skull similar to Dipodomys, with the inflation of the temporal region carried to the farthest extreme known among mammals; zygomatic process similar to that of Perognathus, not widely expanded in front of orbit as in Perodipus and Depodomys; occipetal notch between the enormously inflated mastoids proportionally deeper than in any other genus of the family; supraoccipetal, interparietal and parietals greatly reduced; hind feet long; soles densely haired; five toes on each hind foot, the inner toe similar to that of Perognathus in size and location; tail indistinctly bicolor, some- what longer than head and body; mamme six, one pair pectoral and two pairs inguineal. Microdipodops californicus Merriam. CALIFORNIA DWARF POCKET-RAT. Above grizzled yellowish olive; sides from nose to thighs cream buff, forming an indistinct stripe; below dull white to roots of hairs; no white stripe across the thigh; a dark crescent at base of whiskers; an indistinct white spot above the eye; feet grayish white; tail bicolor, dull buff below, buffy gray above, darkening toward the tip; whiskers mostly blackish, the longest reaching the shoulders. Length about 160 mm. (6.30 inches); tail vertebre 92 (3.60) ; hind foot 25 (1). Type locality, Sierra Valley, Plumas County, California. The above description (except measurements) is drawn up from a male that I caught in northwestern Nevada, five miles east of the California boundary. This may vary a little from the Plumas County animals. The only locality in California where I know of Dwarf Pocket-Rats having been taken is Sierra Val- ley, Plumas County. Animals of this genus have been taken in various localities in Nevada and in eastern Oregon. The two that I caught were taken in sandy land among sage brush, with grain baited mouse traps. I know nothing further of their habits. 162 CALIFORNIA MAMMALS, Subfamily Heteromyinze Molars rooted; temporal region moderately inflated; inter- parietal large; hind legs not greatly lengthened; size small. Genus Perognathus MaximiLian. (Pouch—jaw. ) Upper incisors narrow, grooved in front; zygomatic process not greatly expanded in front of the orbit; tail about as long as head and body; hind feet with five toes, the inner toe small, situated but little above the other toes; soles nearly naked; pelage sometimes spiny on the rump and sides. Subgenus Perognathus. Mastoids comparatively large, projecting beyond the plane of the occiput; pelage soft, without spines or bristles. Perognathus. panamintus Merriam. (Of the Panamint Mountains. ) PANAMINT POCKET-RAT. Above grayish buff, often wth a pearly appearance caused by the pale buff ground color being overlaid by dark-tipped hairs ; lateral line pale buff, not sharply defined; subauricular spot small and inconspicuous; fore legs buffy or white; under parts white; tail, above dusky, darkest toward tip, below buff or whitish; pelage long, full and silky. Length about 143 mm. (5.63 inches); tail vertebre 78 (3.07); hind foot 20 (.78). Type locality, Perognathus Flat, (alt. 3,200), Panamint Mountains, California. Panamint Mountains, California, eastward to St. George, Utah. In April, 1891, Mr. Bailey and I found Panamint Pocket- Mice abundant in the type locality, which is a small sandy plain in the northern part of the Panamint Mountains, having a moder- ate growth of small shrubs and some grass. HETEROMYID 163 Perognathus panamintus bangsi Mearns. (For Outram Bangs. ) BANGS POCKET-MOUSE. Similar to panamintus but paler; above pale vinaceous buff lightly mixed with black; lateral line blending with color of sides; under parts white; tail buffy white, slightly darker on upper side. Length about 138 mm. (5.45 inches); tail vertebre 80 (3.15) ; hind foot 19 (.75). Type locality, Palm Spring, Riverside County, California. Mohave Desert, Owen Valley and south to the foothills bor- dering the Colorado Desert on its southwestern side. Seldom common. Perognathus panamintus arenicola StEPHENS. (Sand- inhabiting. ) SAND POCKET-MOUSE. Similar to bangsi but paler and whiter; above cream buff, slightly mixed with blackish; no lateral line; mastoids greatly swollen and projecting much back of the occiput; interparietal small, its transverse diameter about equal the length. Type locality, San Felipe Narrows, border of the Colorado Desert, California. Sand Pocket-Mice inhabit the sandy gulches at the edge of the foothills bordering the Colorado Desert, sometimes being found a short distance out in the Desert. They appear to be rare. One morning about sunrise I found a little rattlesnake, of the species known as “sidewinder,” with a dead Sand Pocket- Mouse in its mouth. ‘The snake had crushed it and had just be- gun to swallow it, but disgorged on being struck with the butt of my gun. Perognathus brevinasus Oscoop. (Short—nose. ) SHORT-NOSED POCKET-MOUSE. Above deep buff or grayish buff mixed with black, a band 164 CALIFORNIA MAMMALS, (usually narrow) on the sides with but little intermixture of black; a small or obscure whitish spot at the base of the ear; a more or less distinct crescentic blackish line at the base of the whiskers; tail buffy, darker above. Young; drab buff above. Length about 120 mm. (4.70 inches); tail vertebre 62 (3.15); hind foot 18 (.70). Type locality, San Bernardino, California. Interior valleys of southern California. Occasionally com- mon locally after wet seasons, but usually rare. I have never seen them abundant but once, this was after the wet spring of 1884, when they became plentiful at San Bernardino for two or three years, almost disappearing later. The young are usually four in number, and are born in May, June and July. One female in the gray immature pelage taken June 4th, contained but two fcetuses. It is my impression that this species does not often dig burrows, but hides under weeds and dead leaves. Perognathus pacificus Mearns. (Of the Pacific.) SAN DIEGO POCKET-MOUSE. Very small; above ochraceous buff thickly mixed with black; a narrow lateral stripe of buff which widens on the sides of the head; distinct narrow black crescents at the base of the whiskers; a small white spot at the base of the ear and another indistinct larger buff one behind the ear; feet and lower parts white; tail buff below, darker above; skull small and narrow; mastoids less inflated than usual in the small species; transverse breadth of interparietal greater than the longitudinal. Length about 109 mm. (4.30 inches); tail vertebre 54 (2.12); hind foot 15.5 (.60); ear from crown 5 (.20). Type locality, mouth of the Tijuana River, near the last boundary monument. This exceedingly small Pocket-Mouse is one of the rarest of mammals yet, though some one may find them plentiful unex- HETEROMYIDAt 165 pectedly. Dr. Mearns and his assistant Mr. Holzner obtained three at the type locality in the extreme southwestern corner of San Diego County, while with the Boundary Survey in 1894. I had the good fortune to get the fourth, an adult female, in the northwestern corner of the same County, im Sept., 1903. These I believe to be the only specimens yet taken. I caught mine on a dry mesa a short distance back from the seashore. Perognathus parvus mollipilosus Cours. (Little; soft —hair. ) COUES POCKET-MOUSE. Above ochraceous buff thickly mixed with black; lateral line prominent; below white varying to tawny ochraceous on the belly ; antitragus of ear prominently lobed; rostrum rather slend- er; mastoids but moderately developed; interparietal wide. Length about 168 mm. (6.60 inches); tail vertebre 88 (3.45); hind foot 22 (.86). Type locality, old Fort Crook, Shasta County, California. Mount Shasta and northeastern California. Coues Pocket- Mice have been taken on Mount Shasta at 7,800 altitude, which is unusually high for any Pocket-Mouse. Perognathus parvus olivaceous MeErRIAM. (Shaded with olive color.) GREAT BASIN POCKET-MOUSE. Above ochraceous buff thinly mixed with black; lateral line buff; lower parts white, sometimes with plumbeous bases to the hairs; tail brownish above, white below; mastoids usually well developed. Length about 178 mm. (7 inches) ; tail vertebrae 96 (3.75); hind foot 23 (.90); ear from crown 7.5 (.30). Type locality, Kelton, Utah. Great Basin Pocket-Mice range over most of the Great Bas- in, from northern Utah and southern Idaho west to the eastern 166 CALIFORNIA MAMMALS. part of Modoc County, California, and Mono Lake. I have one that I caught at Mono Lake ina sandy flat. While this is a wide- spread subspecies it does not seem to be very common anywhere. It seems to be an inhabitant of valleys and plains. Perognathus parvus magruderensis Oscoop. (Of Mount Magruder. ) MOUNT MAGRUDER POCKET-MOUSE. Very similar to olivaceous; larger; skull larger and heavier ; interparietal relatively narrower. Length about 192 mm. (7.60 inches); tail vertebrae 102 (4); hind foot 24 (.95). Type locality, Mount Magruder, Nevada, at 8,000 feet al- titude; higher parts of the mountain ranges of the desert region of eastern California and Nevada, grading into olivaceous at their bases. Perognathus alticola Ruoaps. (A dweller on the heights. ) WHITE-EARED POCKET-MOUSE. Above ochraceous buff thickly mixed with black; sides scarcely lighter than back; lateral buff line narrow and indistinct; black crescent at base of whiskers obsolete; ears and tail white; skull very similar to that of olivaceous. Length about 165 mm. (6.50 inches); tail vertebrae 84 (3.30); hind foot 22 (.87). Type locality, Squirrel Inn, San Bernardino Mts., Califor- nia. The half dozen known examples of the White-eared Pocket- Mouse have been taken in a small area in the mountains north of the town of San Bernardino, in open pine forest at 5,000 feet altitude or a little higher. They are not common or more would have been found with the amount of trapping that has been done HETEROMYID.% 167 in the hope of getting more. They are easily recognized by the ears and tail being white with but very little dusky mark- ings. Perognathus formosus Merriam. (Comely.) LONG-TAILED POCKET-MOUSE. Size large; tail much longer than head and body; ears large; the antitragus prominently lobed; above grizzled sepia; below white; tail buff mixed with dusky above, buff below; cranium but slightly arched; mastoids well developed; interparietal large and wide; interorbital space wide. Length about 190 mm. (7.50 inches) ; tail vertebra 106 (4.15) ; hind foot 24 (.98). Type locality, St. George, Utah. Southwestern Utah, west to Owen Lake, California. Perognathus longimembris Cours. (Long membered.) SAN JOAQUIN POCKET-MOUSE. Above buff mixed with more or less black; below white; lat- eral line indistinct; tail buff, darker above, lighter below; skull large; mastoids of moderate size; interorbital region narrow. Young; darker and more olivaceous. Length of male about 145 mm. (5.70 inches) ; tail vertebrze 74 (2.90); hind foot 19 (.75). Female smaller. Type locality, old Fort Tejon, Kern County, California. Southern part of the San Joaquin Valley. Subgenus Cheetodipus. Mastoids relatively small and not projecting beyond the plane of the occiput; pelage of adult harsh, often with spines or bristles on the rump. 168 CALIFORNIA MAMMALS. Perognathus penicillatus Woonuouser. (Pencil like.) TUFT-TAILED POCKET-MOUSE. Above pale clay color or vinaceous buff, sparsely intermixed with blackish hairs; below white; lateral line obsolete; hairs of terminal third of tail lengthened, forming a distinct “pencil” at tip; tail similar to back above, darkening toward tip, white below ; soles naked; no spines on the rump, but sometimes small bristles are present; skull comparatively narrow; mastoids small; inter- parietal rather large, the angles rounded, transverse breadth near- ly twice the longitudinal; interorbital region wide. Length about 200 mm. (8 inches); tail vertebrae 109 (4.70) ; hind foot 25 (1). Type locality, near San Francisco Mountain, -Arizona. This Pocket-Mouse is rare in the region where it was first found, that being in the edge of its habitat. It is more common along the Colorado River, but is not typical in the lower part of that region, gradually blending into the next subspecies. Perognathus penicillatus angustirostris Oscoop. (Nar- row—rostrum. ) COLORADO DESERT POCKET-MOUSE. Similar to penicillatus; averaging smaller; rostrum longer and more slender; color similar. Type locality, Carrizo Creek, southwestern border of the Colorado Desert. This Pocket-Mouse is common throughout the Colorado Desert, the southeastern part of the Mojave Desert, the southwest- ern corner of Arizona, northwestern Sonora and northeastern Lower California. The relative abundance is determined by the abundance or scarcity of plants and therefore of food. In con- siderable barren areas they are practically lacking, and in a few favorable localities they are abundant. I remember catching twenty-seven one night in a thick patch of weeds. Their food is mostly the small seeds of plants; mesquit beans are eaten to HETEROMYIDA 169 some extent. Their harvest is irregular and short, and the main dependance must be on stored seeds the greater part of the year. Much loss through starvation must occur after unfavorable sea- sons. The breeding season is spring, April to June. The usual number young is four and five, but I have taken several females containing seven foetuses. In favorable seasons two litters of young appear to be raised. Perognathus stephensi Merriam. STEPHENS POCKET-MOUSE. Similar to penicillatus but very much smaller; skull short; rostrum broader. Type locality, the northwestern arm of Death Valley, Cali- fornia. Known only from two examples which I caught in that part of Death Valley, known locally as Mesquit Valley. It is prob- ably a dwarf subspecies of penicillatus. Perognathus fallax Merriam. (Deceptive. ) SHORT-EARED POCKET-MOUSE. Above brownish buff mixed with black; lateral line buff, us- ually well defined; white spot at base of ear small and faint; an indistinct dusky crescent at base of whiskers; feet and lower parts buffy white; tail pencillate and terminal third crested, up- per side brownish becoming dusky terminally, white below; skull well arched; mastoids of moderate size; rostrum rather slender ; interparietal large, wide; outer sides of nasals parallel to ends posteriorly; ears small, round; pelage coarse and mixed with long coarse spines on the rump and hips, those of the rump black and on the hips white. Length about 185 mm. (7.30 inches); tail vertebre 110 (4.33); hind foot 25 (1); ear from crown 7.5 (.30). Type locality, Reche Canon, San Bernardino Valley, Cali- fornia, 170 CALIFORNIA MAMMALS. Short-eared Pocket-Mice are common in southwestern Cali- fornia from the coast up to the lower edge of the pine belt. They occur some distance into Lower California and north to Los Angeles County. As they are nocturnal and seldom enter build- ings, few people become acquainted with them, or know that these interesting animals are common about them. They prin- cipally inhabit weed patches and prefer sandy land. They rarely enter thick brush. Their tracks are often seen in dusty roads in the morning, and may be distinguished by the impressions of the long heels; frequently the mark of the tail may also be seen in the dust. They live in burrows and under weeds and accumulations of dead leaves. ‘The food is mostly seeds, with some leaves, buds and plant stems. Seeds are stored for food, commonly in small independent surface caches, not readily noticed. I have not heard them make any vocal sound, except rarely a squeak of pain. The number of young is usually five. These are born in April and May. These Pocket-Mice make interesting pets. In November, 1889, I found one alive and unhurt in one of my traps and kept it a captive to study its habits. It was not wild but allowed me to handle it freely from the start. It would walk up my sleeve, around my neck and down the other arm, and for a year or more did not try to jump to the floor, but later it seenred to have lost the power to judge distances, and would jump down after a little walking about, even if the fall was great enough to injure it. It never tried to bite me and would quietly bear handling and carrying about. I put it in a box with an inch or so of sand in the bottom; this it would scratch about vigorously in the night, but I rarely heard it moving in the daytime, although the interior of the box must have been fairly dark all the time. It did not try to gnaw the box, as true mice would have done, and did not try to lift the lid, which was kept closed by its own weight only. At first I tried feeding it grain, seeds and green food. It would HETEROMYIDE 171 eat no green plants or roots that I gave it and’ would not touch water. During the last three years of its life I gave it only dry barley or dry wheat and no water. It seemed to prefer the wheat. It is a mystery to me how such an animal can live for years and thrive on dry grain without water or moisture in any form, but this one certainly did. Three or four times a year I emptied the box and put in clean dry sand and set it in the corner of the hall, where it was perfectly dry, and put nothing more in the box but dry grain and a little cotton, of which the Pocket-Mouse made a globular nest. If taken out of the box after dark and turned loose on the floor the Pocket-Mouse moved actively about a few minutes, usually by short, deliberate jumps; but if frightened it leaped two feet or more. After it had satisfied its curiosity it crept into a dark place behind some piece of furniture. If turned out on the floor in the daytime it hunted a dark place if allowed to, and was easily caught, but after dark I had to corner it to catch it. When captured this Pocket-Mouse appeared to be fully adult. It died in the summer of 1894, during my absence from home. It therefore, was at least five years old at the time of its death and probably older. Perognathus fallax pallidus Mearns. (Pale.) PALLID POCKET-MOUSE. Similar to fallax in size and proportions but paler, the in- termixed dark hairs being fewer and brown instead: of black. Type locality, Mountain Spring, San Diego County, Cali- fornia. The habitat of Pallid Pocket-Mice is the dry, cactus grown slopes of the mountains bordering the western side of the Colo- rado Desert, in San Diego County and northern Lower Califor- nia. They do not seem to be common anywhere. They live among the rocks in the gulches and on the hillsides. They are associated with the Spiny Pocket-Mice in the lower part of the 172 CALIFORNIA MAMMALS. mountain slopes, but are easily distinguished from the latter species in the flesh. The animals found in the type locality of fallax are considerably paler than the usual run of fallax, and are really intermediate between normal fallax and pallidus. Perognathus californicus MErRIAM. CALIFORNIA POCKET-MOUSE. Above yellowish bistre thickly mixed with black; spines of rump and hips prominent; lateral stripe pale fulvous, distinct; below yellowish white; tail long, crested-penicillate, sooty black above, white beneath; skull considerably arched; mastoids small; occiput bulging posteriorly ; rostrum heavy; outer sides of nasals narrowed posteriorly; ears long, comparatively pointed. Length about 193 mm. (7.60 inches); tail vertebre 103 (4); hind foot 24 (.95). Type locality, Berkeley, California. Vicinity of San Francisco Bay, south to San Benito County. Perognathus californicus dispar Oscoop. (Unequal.) ALLEN POCKET-MOUSE. Similar to californicus but grayer and paler; grayer than normal fallax; skull heavier than typical californicus and in some cases with larger mastoids, thus approaching feimoralis. Length about 215 mm. (8.45 inches); tail vertebrae 120 (4.70) ; hind foot 27 (1.05); ear from crown II (.43). Type locality, Carpenteria, Santa Barbara County, Califor- nia. Coast valleys of California from Los Angeles to San Benito County, and the western foothills of the Sierra Nevada north to Placer County. I have seen examples from the pine belt of the San Bernardino Mountains that were very large, with skulls that varied in the direction of femeralis. Perognathus femoralis Atuen. (Of the thigh.) DARK POCKET-MOUSE. Similar to californicus; darker and rather larger; skull sim- ilar to that of californicus. HETEROMYIDA 173 Length about 220 mm. (8.65 inches); tail vertebrae 125 (4.90) ; hind foot 27 (1.05); ear from crown I1 (.43). Type locality, Dulzura, San Diego County, California. The Dark Pocket-Mouse has a somewhat limited range, as far as is now known. This is the foothills and mountains of San Diego County and the adjoining part of northern Lower Cali- fornia. I believe it will ultimately prove to be a subspecies of californicus. In the lower part of its range Perognathus fallax also occurs, and they may be trapped in the same spot. As they are very much alike the novice is likely to consider them both of the same species, but a little examination of the ears will show a difference; fallax has a short round ear while femoralis has a longer and pointed ear. Perognathus spinatus Merriam. (Bearing spines.) SPINY POCKET-MOUSE. Above grayish buff mixed with dark brown; below white; lateral line obsolete; tail drab gray above, white below; spines large and extending forward on the sides, sometimes to the shoulders, the rump spines partly brown, the others white; skull rather flat; rostrum broad; mastoids small. Length about 182 mm. (8.10 inches); tail vertebree 110 (4.33); hind foot 21.5 (.85); ear from crown 6 (.24). Type locality, 25 miles below Needles, California. Spiny Pocket-Mice frequent the arid hills around the Colo- rado Desert and in the southeastern part of the Mojave Desert, east to the Colorado River, which they do not appear to cross. They are replaced on the east bank of the Colorado by the less spiny intermedius. Spiny Pocket-Mice are most plentiful along the western side of the Colorado Desert and southward into Low- er California, but they are not plentiful anywhere. They do not seem to care for the open Desert or for wide valleys, but like the bottoms of rocky slopes where they can come into narrow sandy gulches. [I have several times seen them running about among the rocks at twilight in summer, and they may be more crepuscu- lar than other species. 174 CALIFORNIA) MAMMALS. Family Zapodideze. Jumping Mice. Skull of moderate size and thickness; occipetal region de- pressed; audital bullz transverse, rather small; anteorbital fora- men very large, oval, supplemented on the lower inner side by a small foramen, which transmits the second division of the fifth nerve; zygomatic arch depressed, the molar part slender, except anteriorly, where it widens and extends up on the maxillary to meet the lachrymal; upper incisors compressed, deeply grooved in front, orange colored; upper premolars present in one genus, absent in another; lower molars absent; molars rooted; enamel folds of grinding surface of molars complex; coronoid process of lower jaw high, slender, curved; angular process wide, twisted al- most horizontal; cervical vertebrae not anchylosed ; fore legs about half as long as hind legs; inner toe of front foot rudimentary ; hind foot with five metatarsal bones and five toes, the inner toe short but functional; soles naked; tail slender, tapering, much longer than head and body; cheeks with internal pouches. This small family is composed of two or three genera and about twenty species and subspecies. These inhabit the wooded parts of British America, northeastern Asia, Alaska and the north- ern parts of the United States, reaching some of the higher south- western mountains. Progress when hurried is by long leaps, sometimes seven or eight feet, but these long leaps soon tire the animal and the leaps shorten to a yard or less and the animal hides in the nearest cover. The long tail is a great help in making these long leaps and an aid in going in a straight line. Jumping-Mice do not make run- ways as many of the small animals are in the habit of doing. The food is vegetable, mostly seeds. Hiberation occurs regularly in the greater part of the range of the family, but it is probably incomplete in the southern edge of their range. The animals become very fat, and the fall pelage is usually assumed before hibernation begins, which is when the first hard frosts occur. Most species inhabit grassy valleys bordered by open forests ZAPODID/& 175 or interspersed with groves or shrubs, and some prefer moist localities. They are most often noticed in mowing the grass of meadows inhabited by them. They are crepuscular and noctur- nal, but are abroad occasionally in the daytime. Genus Zapus Covers. (Great—foot.) Nasals long, projecting some distance in advance of the in- cisors; upper premolar present, very small; enamel folds of molars crowded; frontal narrow interorbitally; ears rather long; pelage coarse; four pairs of mammez. Zapus trinotatus Ruoaps. (Thrice—Marked. ) NORTHWEST JUMPING-MOUSE. Summer pelage; a broad, well defined dorsal band from nose to tail black mixed with the color of the sides; head lighter; sides brownish ochraceous buff or yellowish clay color sparsely mixed with coarse black hairs, bordered below with a narrow buff line; feet white; tail bicolor, dusky above, whitish beneath. Autwmn pelage; dorsal band more flecked with yellowish; sides dull yel- low. Immature; back with less black. Length about 240 mm. (9.45 inches); tail vertebrae 145 (5.70) ; hind foot 33 (1.30); ear from crown II (.43). Type locality, Lulu Island, British Columbia. Coast region of British Columbia, western Washington, west- ern Oregon and northwestern California to Humboldt Bay. Zapus trinotatus alleni Exuiorr. (For J. A. Allen.) ALLEN JUMPING-MOUSE. Similar to trinotatus; dorsal band less black; skull smaller with small audital bulle; tip of tail sometimes white. The autum- nal pelage appears to be the same as that of summer. Size of trinotatus. Type locality, Pyramid Peak, Eldorado County, California. 176 CALIFORNIA MAMMALS. Mount Shasta and the Sierra Nevada. They frequent the mountain meadows and grassy localities along streams. They do not seem to be common in many places and I did not find them easily trapped. I got but four, three of these being taken in traps set for meadow-mice, and the fourth in a steel trap set in shallow water in a small stream below a spring in a mountain beaver run- way. As the pan of the trap was close to or above the surface of the water it is probable that the Jumping-Mouse used it as a step- ping stone in crossing the stream, which passed through coarse grass which nearly met over it. These four animals were taken at various altitudes from 5,000 to 9,000 feet. The breeding habits are probably similar to those of the eastern species, which some- times have two litters annually, of four to six each. Zapus orarius Oscoop. COAST JUMPING-MOUSE. Sides of body and head dark ochraceous, moderately mixed with black; dorsal band not sharply defined and suffused with the color of the sides; lower parts strongly suffused with ochraeous, the sides of the throat deeper ochraceous; feet yellowish white; tail grayish above and yellowish white below; upper incisors slen- der and more projecting than usual; rostrum short and consider- ably deflected; nasals very narrow anteriorly; interorbital con- striction narrow; audital bullae small and rather near together. Length about 220 mm. (8.63 inches) ; tail vertebra 127 (5); hind foot 30 (1.20). Type locality, Point Reyes, California. Only known from the coast region of Caifornia from Point Reyes to Humboldt Bay. Evidently rare in this region. Zapus pacificus Merriam. (Of the Pacific Coast.) PACIFIC JUMPING-MOUSE. Dorsal area not sharply defined, but so strongly suffused with yellowish that the yellow predominates over the black; sides buffy- ZAPODID & 177 yellow, moderately lined with black hairs ; inner sides of legs only, slightly darkened; tail sharply bicolor, grayish above, white be- neath; fore and hind feet soiled white. Length of type 225 mm. (8.85 inches); tail vertebrae 141 (5.55); hind foot 31 (1.22). Type locality, Prospect, Rogue River Valley, Oregon. Southwestern Oregon, south to Mount Shasta, California. Rare. 178 CALIFORNIA MAMMALS. Family Erethizontidge American Porcupines. Skull short, rugged, thick and strong; incisors large, prom- inent, not grooved in front; molars rooted and with complicated enamel folds; anteorbital foramen large, oval; angular process of lower jaw joining outside of root of lower incisor; coronoid pro- cess small and low; tibia and fibula distinct ; tail prehensile in some genera, short and thick in others; toes variable in number with genera; soles tuberculate; pelage containing spines; upper lip not cleft; mamme four. The family contains about half a dozen genera and perhaps thirty species. But one genus and two species with several sub- species occur in North America. "The food is vegetable, consist- ing chiefly of the fruits, twigs, leaves and bark of trees, shrubs and plants. Porcupines are plantigrade, principally nocturnal and more or less arboreal. Genus Erethizon Cuvier. (To irritate. ) Four toes on front feet, five on hind feet, all armed with long, curved, compressed claws; tail rather short, very thick, not prehensile, covered above with stiff hairs and spines, and beneath with bristles; pelage below short and soft, above very long and mixed with sharp spines; spines hollow through the greater part of their length, small at base where they are loosely inserted in the skin, points sharp and over certain areas covered with minute flat scales pointing backward, thus acting as barbs... Dental formula, 1, 1—1; C, o—o; P, 1—1; M, 33 X2=20. Erethizon epixanthus Branpr. (Outside—yellow. ) WESTERN PORCUPINE. General effect yellowish gray, blackening on the rump, up- per side of tail, face and feet; spines one to two inches long, very numerous, large creamy white with black tips; hairs sparse, four to six inches long, yellowish on the sides and on upper part of head and neck, whitish at base on the back with yellowish tip and black subterminal zone; face, fore legs and under parts blackish, free from spines; ears small. ERETHIZONTIDEZ 179 Length about 760 mm. (30 inches); tail vertebrae 215 (8.50) ; hind foot 108 (4.25). Type locality, northwestern North America. Western Porcupines are found from the Sierra Nevadas to Alaska. They are common ina few localities ,but are almost un- known in large areas within their range. They occur south to the San Bernardino Mountains, one having been killed there in 1903, and they were occasionally seen there when these mountains were first known to white people. They seem to be lacking in all the coast mountains of Caifornia. They frequent the coniferous forests of the mountains and the higher valleys. When wild fruits are in season these form the principal item of food of the Porcupines; such as wild gooseberries, wild cur- rants, plums, etc. Cultivated fruits are also eaten, and I heard complaints of their damaging apple trees in the northeastern part of California by breaking off the smaller limbs in getting at the apples, and of the waste of apples, these having been dropped af- ter having been bitten. When fruits are not obtainable these animals subsist on leaves, twigs, or sometimes on the inner bark of coniferous trees. They are fond of salt, and I saw a churn and a cheese press that had been gnawed by Porcupines, apparently to get a taste of salt. Townsend saw a pine stump eighteen inches in diameter that had been gnawed away by Porcupines; salt had been placed on the stump for horses to lick. I found Western Porcupines common about Goose Lake, Modoc County, where they inhabited the crevices of lava cliffs. I saw one run from a thicket of wild gooseberries in the daytime and om shooting it found the stomach full of gooseberries. This one weighed nearly twenty five pounds. The gait is slow, one can easily outrun them. 180 CALIFORNIA MAMMALS. Suborder Duplicidentata. Three pairs of upper incisors, one pair being lost soon after the animals birth; enamel covering the sides as well as the front of the incisors; incisive foramina large and usually confluent; bony palate very narrow from front to back. Family Ochotonidee. Pikas. Adult incisors two below and four above, the extra pair very small and hidden behind the others, which are deeply grooved in front; molars rootless; five toes on each front foot and four on hind foot; no visible tail; ears of moderate size, broad, rounded ; eyes small; hind legs not greatly longer than the fore legs; size small. This small family of one genus and fifteen or more living species inhabits alpine and boreal parts of Asia and North Amer- ica. The species are all small in size and similar in habits. The food is grass and other herbage, the leaves and twigs of alpine shrubs, and probably some seeds. Food is stored in autumn for winter use, and it is probable that Pikas do not hibernate, although living where the snowfall is heavy. They are social; digitigrade; partly subterranean and principally diurnal. There is some varia- tion in color, this being apparently due to environment and pro- tective. The sexes are alike and the young but little different. Genus Ochotona Linx. (Mongol name for the Pika. ) Occiput not depressed; a process of the molar is prolonged almost to the ear; aduitory bull large; angular process of lower jaw small, pointed, recurved; condylar process high, greatly flat- tened, wide antero-posteriorily ; coronoid process minute, with a supplementary tubercle just back of the last molar; soles densely haired except a prominent pad at the base of each toe; pelage thick, long, coarse. Dental formula, I, 2—1; C,o—o; P, 2—2; M, 3—3X2=26. OCHOTONIDAG 181 Ochotona schisticeps Mrrriam. (Slate colored—head. ) SIERRA NEVADA PIKA. Form thickset ; no visible external tail, the short caudal series of vertebrae being folded back and lying wholly within the skin; ears prominent, broad, rounded, edged with white; whiskers very long; color of pelage variable with locality, from brownish gray mixed with black above and grayish vinaceous cinnamon below, to buffy white mixed with blackish on the back, the basal half of all the hairs being slaty black in both cases. | Sierra Nevada Pika. About half life size. Length about 185 mm. (7.25 inches) ; tail vertebrae 13 (.50) 5 hind foot 29 (1.15); ear from crown 17 (.67). Type locality, Donner, Nevada County, California. The habitat of the Sierra Nevada Pika is the higher moun- tains of California and northward. It has been found in various places in the Sierra Nevada, White Mountains, Mount ‘Lassen, Mount Shasta and in the Warner Mountains. Probably it oc- curs in various other high mountains of California. Many years ago Prof. Gabb reported it from northern Lower California, but no one has found it there since. 182 CALIFORNIA MAMMALS. I have taken Pikas in six localities in the Sierra Nevada and in the Warner Mountains. All these localities were similar and are typical of those the Sierra Nevada Pikas prefer. These are what are sometimes called “rock slides.” On a steep slope where favorable rock occurs the frost and weather loosens blocks of rock, which roll down the mountain side, and the supply being continued the slope becomes covered many feet deep with blocks of rock from a few inches to several feet in diameter, generally as- sorted to size in certain parts of the slope. The angle of the slope is as steep as the blocks will lie. These slides often cover many acres. Among the interestices of these slides the Pikas make their homes, foraging on the herbage growing around the slides. They live in small communities, but my impression is that none of the localities that I have seen were inhabited by more than two or three dozen individuals, and in some probably but two or three families lived. The food of Pikas is said to be “grass,” but there is very little grass to be found in the neighborhood of any of the colonies that I have seen. Probably most of the plants growing within their reach are eaten. They are said to cut and cure grass for winter food; this “‘hay” being stored among the rocks after dry- ing in the sunshine. The only instances of this kind that I have seen were on the Warner Mountains in July, when I found several piles of twigs, mostly of “Choke cherry” twigs. Some of these piles were of scarcely wilted twigs, while others were old, apparen- ly cut the previous season. These twig piles appeared so much like the nests of wood rats (Neotom«) that I got the impression that they were really used for shelter and secondarily for food when other food ran short. TI have not had the opportunity of observing the Pikas late in the season when they would naturally be curing “hay.” The lowest altitude in which I have found Pikas is 6,700 feet and the highest about 10,000 feet. The Pikas run about on the rocks much as a rat would. I happened to see one on a bit of level ground at the foot of a slide; it hopped along much as a young OCHOTONIDE 183 rabbit would when not alarmed or hurried. ‘The position taken at rest is that shown in our engraving. I have seen none stand- ing upright. An adult that I weighed pulled the scale down to four ounces. Coues says of the Rocky Mountain Pikas that “re- production takes place in May and June, and about four young are produced in a grassy nest.” A female Sierra Nevada Pika that I shot August 22nd. was suckling young. The mamme were six in number, two pairs pectoral, one pair inguineal. The voice of Pikas is said to be similar to the bleat of a young lamb; that of the Sierra Nevada Pika is somewhat differ- ent. It may be represented by “‘eeh” strongly aspirated and is re- peated. It is not loud but may be heard a hundred: yards or more. The animal is difficult to locate by the sound, partly because of a ventriloqual quality of the sound, but more because of the ani- mals resemblance to the rock on which it may be sitting. I have seen them through a field glass eighty or a hundred feet away when I could notdistinguish them with the naked eye, yet a charge of fine shot fired at the top of the rock where I knew it sat would get the animal. The color is variable with locality, and protective, being similar to that of the rocks where they live. If the rocks are nearly white so is the animal, and if the rocks are dark the animal is also. The snowfall is heavy in the region inhabited by the Pikas, but the interstices of the rock slides would be free from snow and comparatively warm and it is probable that they are active all winter. These little mountain dwellers are curious creatures from many points of view. They appear to be the remnant of an an- cient family, distanced in the evolutionary race and crowded into a region difficult for other animals to utilize. They are peculiar- ly home loving bodies, as is shown by their having acquired the color of particular areas of rock, among which they must have dwelt many generations. Their habits protect them from nearly all predatory animals except weasels. American Pikas are some- times called Little Chief Hares, Straved Rats and Conies. 184 CALIFORNIA MAMMALS. Family Leporidge Hares and Rabbits. Skull long and narrow; two lower incisors; four upper in- cisors, the middle pair large and deeply grooved in front, the sec- ond pair small and hidden behind the first pair (in very young hares there is a minute third pair which are soon shed’) ; molars rootless ; rami of lower jaw wide and thin; facial surface of max- illa extensively perforated or reticulated; a perforation between the eye sockets; collar bones present but usually imperfect; size large. The Hare family contains but two genera, about forty spec- ies and several subspecies. It is best represented in North America. There are several Old \Vorld species, but the family has no repre- sentative in Australia. The food is entirely vegetable, mostly the leaves, stems or branches of a variety of plants and small shrubs, which are bitten off and eaten on the spot. In some regions they damage young orchards and vineyards, and occasionally they become sufficiently abundant to seriously harm grain crops. The family is of some economic importance as a source of food supply, the animals be- ing of sufficient size to be worth hunting and the flesh being pal- ateable. Hares are digitigrade, terrestrial, principally crepuscular and nocturnal. In most species there is little change of color with age, sex or season, but some northern species undergo a complete change of color twice a year, being brownish in summer and white in winter. The mamme are numerous, usually five pairs, abdominal. The number of young are variable with species and region, the European Rabbit having several litters each year, each litter averaging half a dozen or more; while most American Hares have but two or three litters annually, and these seldom number more than four or five. The young of the European Rabbit are born blind and hairless in an underground nest, but the the American species of Hares are well haired at birth and can see and very soon care for themselves. LEPORIDA 185 The name Rabbit properly belongs only to a particular spec- ies of Hare, the European Rabbit (Lepus cuniculus), which is well known in this country as the domesticated “English” Rabbit. Genus Lepus Linnarus. (Hare.) Hind legs longer than the fore legs; eyes large; ears long, usually equaling or exceeding the head in length; inner side ot cheeks haired; tail short; soles heavily haired; no naked pads under the toes; pelage soft; skin thin; skull with distinct supra- orbital processes; malar extending posteriorly in a short process; occiput depressed: auditory bulle large; incisors very short, not reaching as far back as the premolars; coronoid process of lower jaw a thin, low, more or less incurved plate, sometimes obsolete. Lepus campestris sierrze Merriam. (Of the plains; of the mountains. ) SIERRA PRAIRIE HARE. In summer, above grizzled gray, the hairs whittish for the basal two thirds, then blackish, then almost pure white and the tip again black; eye ring, front edge and part of inner surface of ear pale grayish buff; a broadi stripe of the color of the head on the front side of the ear; back half of the convex side of the ear and nape white; tip of ear black; an indistinct white spot on fore head; breast gray; front side of fore legs and back side of hind legs pale buffy gray; soles brown; remainder of legs and belly white; tail large, bushy, white all around or with a narrow gray stripe on the upper side. Jn winter; white, more or less tinged with yellowish brown; ears tipped with black. Simetimes the change to winter pelage is incomplete. Length about 135 mm. (25 inches) ; tail vertebra 100 (4); hind foot 165 (6.50); ear from crown 150 (6); weight 6 to 1a pounds. 186 CALIFORNIA MAMMALS. Type locality, Hope Valley, Alpine County, California, alt. 7800 feet. Higher valleys of the Sierra Nevada south to Menache Meadows, in winter the eastern slope of the Sierras down to the upper edge of the sage brush. Dairymen summering in the Sier- ras told me that these Hares could not run fast. One man, who remained through the winters told me that they turned white with the early snows and showed me fragments of skins that were white on the surface and brownish or grayish beneath the surface. The large feet with unusually long hair on the soles are responsi- ble for the peculiar name “Snowshoe Rabbits.” They are also known as White tailed Jack-Rabbits. They do not seem to be plentiful anywhere. Subgenus Macrotolagus. Interparietal obliterated in adults; supraorbital process large, united to cranium posteriorly, in adults inclosing a large foramen ; rostrum long; size large. Lepus californicus Gray. (Of California.) CALIFORNIA HARE—JACK-RABBIT. Above grayish drab thickly mixed with black and tinged with fulvous; sides and breast grayish vinaceous cinnamon; belly buft or very pale cinnamon, ears drab, whitish on the back side. edged with brownish white or buffy white, and tipped with black; sides and under surface of tail grayish cinnamon, upper surface black, this stripe extending up on the rump; legs mostly light drab brown, more or less tinged with cinnamon. Length about 560 mm. (22 inches) ; tail vertebra 90 (3.50) ; hind foot 120 (4.75); ear from crown 160 (6.30); weight from four to seven pounds. Type locality, probably the old San Antonio Mission, Mon- terey County, California. . Northwestern Lower California north through California LEPORID/Z 187 west of the Sierra Nevada, except the San Joaquin Valley, to southwestern Oregon. Common in the valleys and foothills of western California, occasionally ranging to the highest valleys of the coast mountains. They are not as gregarious as the Desert Hares, and are found less frequently in the open plains, prefering the edges of the plains and the little valleys in the foothills. In habits, food and gait they are similar to the Desert Hares. The breeding season is winter and spring. One New Years Day I shot a female California Hare that would have given birth to two young in about a fortnight. The number in a litter is two to four, and probably two litters a year are the usual number. Lepus richardsoni BacuMan. (For Sir John Richard- son. ) RICHARDSON HARE. Similar to californicus but smaller and much paler; above buffy gray. Type locality, probably the Salinas Valley, Monterey County, California. The Richardson Hare seems to be a pale species whose range is the Salinas Valley and the dry warm region eastward, border- ing the San Joaquin Valley and extending north in the foothills of the Sierra Nevada to about Mariposa County. Its range over- laps that of the California Hare in the western part of the Salinas Valley. Lepus texianus deserticola Mrarns. (Desert—dweller. ) DESERT HARE. Above grizzled brownish gray; ears grayish brown on the front surface, fringed with grayish white or buffy white, tipped with black, remainder gray; hair on ears very short, sides of body, front side of fore legs and back side of hind legs pale gray, more or less tinged with buff or drab; belly whitish; upper surface of 188 CALIFORNIA MAMMALS. tail, extending more or less on the rump, black, remainder of tail pale gray. Length about 510 mm. (20 inches) ; tail vertebrae 90 (3.55); hind foot 117 (4.60); ear from crown 155 (6.10). Type locality, Colorado Desert. Desert Hares are more or less common in the Deserts ot southeastern California and northward along the eastern slope of the Sierra Nevada to the northeastern corner of this State. Desert Hare. One-fourth life size. They are found in the open plains, the edges of the deserts and on the slopes at the foot of the mountains where small shrubs are scattered about, seldom in timbered places. Their food consists of nearly every kind of herbage obtainable, even cactuses being eaten, particularly in the drier parts of the year, when these are almost the only plants retaining any moisture. These Hares sel- dom drink, but obtain sufficient moisture to supply their bodily needs from the green plants eaten. Their run is graceful and very LEPORID.& 189 rapid when at full speed. The gait when moving slowly is a ser- ies of hops and is ungainly. The Desert Hares appear to be subject to epidemics, perhaps more so than other species. In the summer of 1894, in Lassen and Modoc Counties, I saw numbers of bodies scattered among the sage brush and along the road. Some of those that I ex- amined contained “warbles,’”’ but these were insufficient to account for the death of the animals. It seemed to me that more diec than remained alive. Such epidemics have been frequently no- ticed, but I have seen no account of their occurence in central and Southern California. All Hares are subject to the attacks of numerous parasites, such as tapeworms, ticks, bots and warbles. A brief mention of some of these may be useful. In skinning a Hare a large blister is sometimes found under the skin or in the flesh. ‘This is some- times called a “water blister.” In the fluid contained in this blis- ter are numerous larvee of a tapeworm, a species of Ceenuris. "To enable these tapeworm larve to complete the change to adult tape- worms it is necessary that they be transferred to the stomach o} some member of the Canidz, as a dog or a coyote. This frequent- ly occurs in the natural course of events. If you don’t wish your dog to suffer with tapeworm don’t feed these blisters to it without previous cooking. The very minute eggs of the tapeworm pass from their canine host, and some adhering to vegetation are ac- cidentally eaten by Hares, to continue this curious process of pass- ing through two different animals to enable one parasite to com- plete its various life stages. The ‘“‘warbles” spoken of above are the larve of a species of Cuterebra, a fly which deposits its eggs in the skin of the Hare, in the same manner that another species does in the skin on the backs of cattle. Probably none of these various parasites would render the flesh of a Hare harmful if the flsh is thoroughly cooked, but it is not appetizing to know of their presence. The young average about four, and it is probable that three or more litters are born annually. Their fecundity must be great 190 CALIFORNIA MAMMALS. to enable the species to hold its own, with birds and beasts prey- ing on them, epidemics of disease decimating their ranks, and man, with dog and gun, assisting to upset Natures balance. For- tunately for the Hare, man also destroys his hereditary enemy, the coyote, else he would become exterminated. Lepus texianus tularensis Merriam. (Of Tulare.) TULARE HARE. Very similar to deserticola; averaging paler and more yel- lowish; back less grizzled with black. Type locality, Alila, Tulare County, California. This is a pallid form inhabiting the southern part of the San Joaquin Valley and the Carrizo Plain to the westward. It is very abundant in many parts of this range and is the predominant species captured in the large drives made in the San Joaquin Val- ley, in fact almost the only one taken in some of the drives. These drives are large surrounds and the Hares are driven toward and into corrals of wire netting. They are often very successful, sev- eral thousand being taken in a surround. There are a few Hares in some of the higher mountains of Southern California, in the more open parts of the pine forests. They do not differ from deserticola sufficiently to be worth separa- ting. They appear to be clearer gray and have shorter ears, judg- ing from my scanty material, obtained in the San Bernardino Mountains. Subgenus Sylvilagus. Interparietal present in adults as a small distinct bone; rost- rum of medium length; skull and teeth light; suproarbital process small, either united to cranium posteriorly enclosing a small fora- men, or free; size medium or small. Lepus auduboni Barro. (For John J. Audubon.) AUDUBON WOOD-HARE. Above clay color mixed with black, the tips of the hairs be- LEPORID/E 191 ing black; sides brownish gray somewhat grizzled with black ; in- ner (concave) surface of ears mostly pale gray, front part of con- vex surface brownish gray, tip black and remainder of outer side light gray, nape tawny ochraceous or pale iron rust color ; am inde- finite grayish white area around the eye; outside of legs light red- dish brown, their inner sides white; soles light sepia brown; throat and belly white; underside of neck like the sides; tail compara- tively long, its upper side similar to the back in color; on the hips the clay color of the back is replaced by' dull white. Length about 380 mm. (15 inches), tail vertebrae 50 (2); hind foot 88 (3.45); ear from crown go (3.55); weight about two pounds. Type locality, San Francisco, also San Diego, California. The Audubon Wood Hare is found from northwestern Low- er California north along the coast region of California to some distance north of San Francisco and east to the Sierra Nevada and San Bernardino Mountains. It is common in much of this area and sometimes abundant. In eastern Califonia this form is re- placed by the subspecies arizonz and in northern California by nuttalli, The Wood Hares are not often found in dense forests or in open plains. They prefer thickets of brush interspersed’ among trees, with some open ground about. They like to feed in the open ground, but hide in the brush when disturbed and in their hours of repose. The food is preferably succulent herbs, but in places or sea- sons when these are scarce they eat most species of small plants, twigs and sometimes bark. Occasionally they do some damage to young orchards by biting off the branches or tops of small trees, rarely by gnawing large trees. They are frequently destructive to vegetables in gardens and grain crops. They can be prevented from damaging young trees by taking advantage of their dislike of the smell of blood and fresh flesh. The easiest way is to rub the body of the young trees with a piece of liver or freshly killed 192 CALIFORNIA MAMMALS, flesh, which they will avoid for weeks unless a heavy rain washes the trees. The gait is a series of hops when moving about leisurely, and long rapid leaps when moving at full speed. Ordinarily they utter no sound, but when caught they make a harsh plaintive cry. The number of young ina litter is usually three to five; there are probably two or three litters annually, in spring aud summer. All our western Wood Hares take refuge more or less in crevices among rocks, but they do not often burrow in the ground. They rarely sit erect. They are timid creatures and depend on their excellent eyesight and hearing for warning and their speed or hiding in the brush for safety from pursuit. The Wood Hares are commonly known in the west as ‘‘Rabbits” and also as ‘“‘Cot- tontails,” which is a good general name for the group. Lepus auduboni arizonee. ALLEN. (Of Arizona.) ARIZONA WOOD-HARE. Paler than audiubont, the general effect gray rather than brown; ears longer and with but little black at tips. Length about 355 mm. (1.4 inches); tail vertebre 50 (2); hind foot 83 (3.25); ear from crown 92 (3.60). Type locality, Beale Spring, in northwestern Arizona. Western and southern Arizona, southern Nevada, California east of the Sierra Nevada and San Bernardino Mountains and northwestern Lower California. Frequents the thickets of the valleys and less arid parts of this region. Seldom common. Lepus nuttalli BacuMan. NUTTALL WOOD-HARE. Smaller than auduboni; ears shorter; color intermediate be- tween auduboni and arizone ; skull smaller; rostrum wider in pro- portion and much shorter. Length about 335 mm. (13.20 inches); tail vertebre 47 (1.85); hind foot 85 (3.35): ear from crown 80 (3.15). LEPORIDA 193 Type locality, near junction of Snake and Columbia Rivers, Washington. From northeastern California, eastern Oregon and eastern Washington east to the Rocky Mountains and the western part of the Great Plains. The Nuttall Wood Hare inhabits the sage brush region of northern California in Lassen, Modoc and Siski- you Counties. It does not seem to be common in many places. Lepus bachmani Warrruouse. (For John Bachman.) BACHMAN BRUSH HARE. Above grayish brown mixed with blackish, the back tinged with burnt umber; ears gray, darkest on outer surface, narrowly edged with whitish, rarely edged, but not tipped with black; nape light burnt umber; sides and throat brownish gray mixed with whitish; belly and front sides of legs pale gray, the plumbe- ous bases of the hairs showing through more or less on the belly; soles smoky brown; tail very small, its upper surface, sides and tip grayish brown, lower surface white; skull similar in size to that of nuttalli; condylar process of lower jaw shorter and more up- right, angular process wider; compared with azduboni the same differences in these processes hold; the skull is smaller and the rostrum shorter. Length about 330 mm. (13 inches) ; tail vertebrae 36 (1.40) ; hind foot 75 (2.90) ; ear from crown 67 (2.65). Type locality, San Francisco or Monterey, California. The Bachman Brush Hare is found in the coast region of California from Monterey north to Oregon. Lepus cinerascens ALLEN. (Ashy.) ASHY BRUSH HARE. Similar to bachmani,; paler, the burnt umber tint of the upper parts nearly or quite absent ; body smaller; hind feet shorter; tail and ears longer; teeth smaller; palatal bridge narrower; malar 194 CALIFORNIA MAMMALS. more depressed ; condylar and angular processes of lower jaw nar- rower. Length about 305 mm. (12 inches) ; tail vertebrae 36 (1.40) ; hind foot 72 (2.85); ear from crown 70 (2.75). Type locality, San Fernando, Los Angeles County, Cali- fornia. Southwestern California and northwestern Lower California. The Brush Hares inhabit thick brush, seldom venturing into open ground and rarely entering forests. The vast thickets of brush covering so much of the hillsides of California, and known locally as ‘chapparal,’ or more properly, ‘chemisal,’ forms their homes. They are very timid and are difficult to shoot because of their pertinacity in remaining in the shelter of the brush. In other re- spects their habits are similar to those of the Wood Hares. In my notes I find records of two females each containing three foetuses, March third and fourth respectively, and one with five, April seventh. Probably two litters are the rule. This Hare is well known to local hunters under the names of Brush Rabbit and Blue Rabbit, the latter name being given because of their bluish appearance at a little distance as compared with the Audu- bon Wood Hare. Subgenus Brachylagus. Skull short, deep; audital bulle large; rostrum small; ex- tremities of supraorbital processes free; ears, legs andi tail short; size very small. Lepus idahoensis Merriam. (Of Idaho.) IDAHO HARE. Winter pelage; above clear drab gray slightly mixed with black hairs; ears pale buff inside, dull buffy ochraceous mixed with gray and black tipped hairs outside and bordered in front with a blackish line; nape and feet dull ochraceous buff; breast grayish buff; belly whitish along the middle line only. Summer FER 195 and wmmature pelage; upper parts gray suffused with buff and intimately mixed with black. Length 290 mm. (11.40 inches); tail vertebre 15 (.60); hind foot 71 (2.80) ; ear 68 (2.28). Type locality, Pahsimeroi Valley, Idaho. The Idaho Hare is found from Idaho to northeastern Cali- fornia, a skin from Goose Lake being in the National Museum, and I saw a mounted specimen in Susanville which was probably of this species, but was unable to examine it closely. Dr. Mer- riam says that the Idaho Hare is strictly nocturnal and inhabits badger holes. It might therefore be common in a region and yet remain unknown. 196 CALIFORNIA MAMMALS. Order Fergze. (The Flesh-eating Mammals. ) Digits never less than four to the foot, each bearing a claw; first and second: digits not opposable as thumb and finger; teeth rooted, of three kinds, incisors, canines and molars; canine teeth prominent; condyles of lower jaw semiclindrical and placed trans- versely; clavicle incomplete or absent; radius and ulna distinct; scaphoid and lunar consolidated in one bone; stomach simple, pyriform; placenta deciduous and usually zonary; mamme ab- dominal. This order is often called the Carnivora because of the flesh eating propensities of its members. A few species live partly on fruits or vegetable materials, but all eat some flesh and the major- ity feed on freshly killed flesh almost exclusively. Many species rank high in intelligence and some are capable of useful domesti- cation. Suborder Pinnipedia. Seals. Limbs short, fin-like, being useful only for swimming:; first toe of front foot and first and fifth of hind foot longest; toes fully webbed; body prostrate; tail rudimentary; ears very small or lacking; eyes large and exposed, with flat cornea; no clavicles; skull constricted interorbitally ; orbital fossee very large; rostrum short and broad; milk teeth rudimentary and usually lost soon af- ter birth; incisors varying in number with genus; canines length- ened. Seals are abundant along Arctic seashores, common along those of temperate regions, but are less common in the tropics, where they are unknown on many coasts. The food of seals con- sists principally of fish, some species also adding crustaceans and mollusks. The fish are caught by pursuit in the water. Seals are expert swimmers and spend the greater part of their time under water. They must come to the surface to breathe every few minutes, and they come ashore occasionally to rest 01 bask in the sun. Most species never venture more than a few PHOCID 197 feet from the water, in which they quickly take refuge on be- coming alarmed. There are three families, two of these having species living on the California coast, the third, Odobenidz, containing only one genus with two species, Walrus, being restricted to Arctic seas. Altogether there are now about eighteen genera and thirty species recognized in this suborder. Family Phocidee. Earless Seals. Hind legs not capable of being turned forward and not ser- viceable for use on land; front limbs smaller than hind limbs: neck short; no external ears; upper incisors pointed; no distinct posterbital process; uelage without underfur. Subfamily Phocinge Incisors 3—2; all claws well developed; first and fifth toes of hind foot not much longer than the other three; interorbital region greatly constricted. Genus Phoca Linn. (Seal.) Molariform teeth, except the first, large, double rooted, three lobed, planted more or less obliquely; head short; males not much larger than the females; size small for the suborder. Dental formula, I, 3—2; C, 1—1; P, 4—a4; M, 1—1'X2=34. Phoca richardii Gray. (For Captain Richards. ) PACIFIC HARBOR SEAL. Color variable; above yellowish gray, yellowish brown or blackish, blotched with black, brown or buffy ; below buffy whitish or dull brown, more or less spotted with dark brown; skull thin and comparatively smooth; premaxillaries extending to the nasals and a short distance along them. The spots or blotches may be very few and indistinct, or numerous and well marked, and are 198 CALIFORNIA MAMMALS. commonly smaller and better defined on the lower surface, they may be lighter or darker than the ground color. Seals appear to grow all their lives, but slowly after middie age. ‘The length is three to five feet, rarely six. ‘The females are a little smaller than the males, and the molariform teeth are somewhat smaller and less crowded. Type locality, Vancouver Island, British Columbia. Pacific Harbor Seals are common along the Pacific coast and islands of North America, from British America south prob- ably to northern California. Phoca richardii geronimensis ALLEN. SAN GERONIMO HARBOR SEAL. Similar to richardti; averaging larger; teeth heavier. Type !ocality, San Geronimo Island, Lower California. The San Geronimo Harbor Seals are common in many places along the California coast, particularly in the bays. They are monogamous. The young are born in May, June and July; one pup is the rule. They are not migratory and are not as gregari- ous as most seals are, being seldom found in large companies. They are comparatively silent, not making a loud roaring or bark- ing as sea lions do. Harbor Seals eat large quantities of fish, sometimes doing serious injury to inshore fisheries. In such places their killing should perhaps be encouraged, since the Harbor Seal is of but lit- tle use to civilized peoples, though to the northern Indians and In- nuits they are an important source of food supply. The skin is of little value. The oil is not made use of here, though in some regions various small species are hunted for their oil. Scammon considers it the purest of all seal oils. Eliott says that the best seal flesh is that of the Harbor Seal. These Seals are fond of basking in the sun, especially at low tide, when numbers may be seen lying on their favorite sand bars in the smaller bays that are not disturbed by shipping. Progress on land, when hurried, is by pulling themselves PHOCIDA& 199 forward by the fore feet used simultaneously, the hind feet being dragged along inactive. In swimming the hind feet (‘‘flippers”) do most of the work. Subfamily Cystophorins Incisors 2—1; first and fifth toes of hind foot longer than the other three and with rudimentary or no claws; interorbital region but moderately constricted. Genus Mirounga Gray. (Australian native name.) Molariform teeth small, single rooted, not lobed; skull com- paratively narrow; adult male with a nasal proboscis capable of voluntary elongation and dilation; webs of hind feet extending be- yond the toes; adult males very large, the females much smaller. Dental formula, I, 2—1; C, 1—1; P, 4-4; M, I—1X 2=30. Mirounga angustirostris Git. (Narrow—beak. ) CALIFORNIA ELEPHANT SEAL. Light dull yellowish brown, varied with gray, darker on the back; more yellowish below; hind flippers hairy, without nails, deeply notched; foreflippers armed with long nails. Length of adult males twelve to eighteen feet, the proboscis about fifteen inches in length; adult females are seven to ten feet in length and are without a proboscis. Type locality, San Bartolome Bay, Lower California. California Elephant Seals were formerly found along nearly the whole western coast of Lower California and north along the California coast to Point Reyes. It is probable that the species is now exterminated in the waters of this State, but a few may still survive about some of the outer islands of the Santa Barbara group. A very few are known to be still living on the Lower California coast. California Elephant Seals seem to have frequented rocky 200 CALIFORNIA MAMMALS. beaches in preference to sandy beaches or rocky islets. They are said to be monogamous. The young are born in May and June. Captain Scammon, to whom we are indebted for nearly all our information about this species, says that the sound made by them when alarmed resembled the lowing of an ox, but was more prolonged. California Elephant Seal. They were large and easily obtained, and produced a con- siderable amount of oil, two hundred gallons sometimes being obtained from a single individual. Therefore they were much sought after in the period succeeding the discovery of gold in California, previous to the general use of coal oil. In this period vessels were freighted with their oil, and in consequence of this reckless slaughter the species was practically exrerminated in a few years. The California Elephant Seals while formerly abun- dant locally, were few compared with the enormous numbers of the Southern Elephant Seals that were found on: islands of the Antarctic Ocean when these were discovered. OTARIIDA 201 Family Otariidge Sea Lions and Fur Seals. Hind legs capable of being turned forward and of some service for use on land’; neck long; front limbs nearly as large as hind limbs; first and fifth toes of hind feet without claws; webs extending beyond toes; small external ears; a postorbital pro- cess; incisors of upper jaw notched on crown; crowns of pre- molars and molars usually simple; males exceeding females in size. Genus Zalophus Gini. (Great—crest.) Molar not separated from premolars by a wide space; molari~ form teeth small, simple in root and crown; rostrum long and narrow; occipital and saggital crests prominent; very much so in old males; no underfur. Dental formula, I, 32; C, 1—1; P, 4—4; M, 1—13 X2=34. Zalophus californianus LrEsson. CALIFORNIA SEA LION. Color varying from tawny yellow through yellowish brown to dull black, the greater number being brownish yellow. Length of adult males from seven to ten feet, and of females five to six feet; to end of outstretched flippers would be a foot more. I measured the large male spoken of later. His length to end of tail was 2490 mm. (98 inches) ; outstretched hind flip- pers 940 mm. (37 inches) from tip to tip. I estimated his weight at more than 500 pounds. I have seen larger seals of this species. California Sea Lions are found along the Californian and Mexican coast from some distance north of San Francisco south- east to the Tres Marias Islands off the coast of southern Mexico. In 1884 I saw Sea Lions along the Sonoran coast of the Gulf of California which were probably of this species. These Sea Lions are not now found generally distributed along the coast of Cali- fornia, but resort to favorite rocky beaches on the Islands and to little islets along the coast where they are not molested. 202 CALIFORNIA MAMMALS. These Sea Lions migrate but little, if indeed their move- ments may be given that name. At one season there seems to be a dispersion from the breeding ground to the nearest well stocked feeding ground, and at the reverse season a gathering at the breeding ground. In some localities a good fishing ground is found in the immediate vicinity of their favorite islets, which they then occupy continuously. Like most of the larger seals this species is polygamous. The sexes manifest but little attachment for one another. The young are said to be born from May to August, and at first are averse to the water, but in about a month they enter the water and soon become expert swimmers. The food is fish, which are swallowed without mastication. As the Sea Lions are very expert and swift swimmers they are able to overtake most fish by direct pursuit. But little economic use is made of this Seal. At some seasons when they are fat some are killed for their oil, and their hides are used for making glue. The following extracts from my notebook may be of interest. “April first, 1893. This morning Mr. Fenn and I rowed to the ‘seal rocks’ near the south end of Santa Catalina Island to get sketches of the Sea Lions. As we neared the rocks we saw sev- eral Sea Lions on them and heard their loud ‘hong-hong.’ Several were on the outer group of islets, but none were on the outermost rock, which was perhaps a hundred feet from the islet on whichthe greatest number were lying. The morning was cloudy and calm, with but little sea, and we cautiously pulled up behind the rock which rose five or six feet above the water. Mr. Fenn got out on a little shelf that was awash when the larger swells passed. In front the rock was low enough to see over and made a rest for the sketch book. I had to keep clear of the rock to avoid smashing the boat and out of sight as much as possible, which was no easy job in the long swell. “Tn another direction was a large rock about two hundred yards away, on which a few Sea Lions crawled now and then, but did not stay long; these J could watch as they were in full view, though they did not appear to notice me at that distance. OTARIID AL 203 They seemed to have hard work to crawl on the rock, and when up did not stay long in one position, but uneasily rolled about or slid back in the water. I saw one huge fellow crawl to a flat edge overhanging deep water and suddenly throw his fore parts up in the air and leap, just as a man would in diving, using his hind flippers to make the spring. Usually they slid down into the wa- ter head first. “In the open space between the rocks and islets was a group ot a dozen or so, rolling about in the waves and seeming to enjoy life hugely. They swam either side up or on their sides, heads rolling from side to side, flippers sticking out of the water here and there, a picture of perfect ease and contentment. Now and then they would tire of the idle pastime and commence romping; div- ing and chasing one another about, or leaping out of the water porpoise fashion. Once I saw a rather small one spring straight out of the water clear of the surface. “At a distance a number of these Sea Lions crawling over the rocks, or slowly swaying their heads about as they often do, look like gigantic maggots, but at close quarters they lose that appear- ance. In the water the younger animals have a pleasant dog-like air as the head and shoulders appear above the water. “The usual loud cry is a syllable sounding like ‘hong’ re- peated sonorously, and has some resemblance to the hoarse bark of a dog. These sounds are oftenest made when the animal is lying on the rocks, but sometimes a swimmer takes up the bark. This occured several times near me. In these cases at least the animal did not close its mouth after each repetition of the note, but steadily held the mouth wide open, the head being held well out of the water. The vocalization all came from the throat, wittT no apparent modulation through action of the mouth or lips. Be- sides this repetition of the ‘hong’ I heard another sound a few times, a curious bleat, not loud, but to me, with a comical tone that always provoked a laugh. It always came suddenly, which was perhaps why it sounded so funny. This sound may have been made by a female. 204 CALIFORNIA MAMMALS. “IT wanted a skull of this species and when Mr. Fenn was through sketching we changed places. I selected the largest ani- mal in sight, which fortunately laid on top of the islet in a flat place, and sent a rifle ball through the base of his skull, killing him so dead that he did not even struggle. I had feared that he would roll off and be lost. He was dark brown, except that a patch about three inches by four on the forehead and the region around the lips was a light yellowish gray. This light patch on the head seemed to be usual on all the light colored animals. ‘The hairs of this patch are longer than those of the remainder of the head, and when dry project forward, giving a crested effect, lacking on the smaller animals. “After satisfying our curiosity I cut off the head, which proved a tough job for my pocket knife, as the skin was nearly three quarters of an inch thick. We rolled the body off the rocks into deep water alongside, where it sunk as quickly as a stone and did not re-appear. While cutting the head off several medium sized animals came quite close to the islet as if they wanted to climb on. “On our way back to camp we saw several small and medium sized Sea Lions and an old male playing in the surf. The male greeted us with barks and the whole group swam alongside us half a mile or more, as if to show us how agile they were, and how easily they could run away from us if they liked. Probably their motive was curiosity.” Genus Kumetopias GI. (Typical—broad fore- head. ) Molar separated from premolars by a space about as broad as that occupied by a premolar; molar double rooted; premolars sin- gle rooted; crowns simple; rostrum short and wide; occipital and saggital crests not greatly developed, no underfur. Dental formula, I, 3—2; C, 1—1; P, 4-4; M, 1—1'X2=34. CALIFORNIA SEA LION OTARIIDA 205 Eumetopias jubata Scuresrr. (With a mane.) STELLAR SEA LION. Externally very similar to Zalophus californianus; supposed to average larger; colors similar and as variable. Type locality, North Pacific Ocean. Stellar Sea Lions range from Bering Straits east and south along the Pacific coast of North America to the Farallone Is- lands, California. I have never seen this species, but specimens of it from the Farallone Islands are in scientific collections. None are known from further south however, and this species is prob- ably much less common there than the California Sea Lion. Ex- ternally the two species seem to be much alike, but probably an ex- pert would see differences on comparison. The gap inthe molars in the tooth row of the Stellar Sea Lion is quickly seen by any one who has an opportunity for such examination. The habits of the two species are similar though the Stellar Sea Lion seems to migrate with more regularity. There is a dif- ference in their voices, however, the utterance of the Stellar Sea Lion being a steady roar while that of the California Sea Lion is broken into barks. Genus Callorhinus Gray. (Beautiful—nose. ) Molariform teeth small, simple; rostrum very short and wide at base, convex in upper outline; saggital and occipital crests not greatly developed; pelage with abundant underfur. Dental formula, I, 3—2; C, 1—1; P, 4—4; M, 1—1 or 2— 1X 2=34 or 36. Callorhinus alascanus JorDAN and CiarK. (Bear like.) NORTHERN FUR SEAL. Male; black, the region over the shoulders gray; face with brownish areas; neck gray in front; flippers and belly reddish brown; Female; above gray ; below rufous. Young; glossy black with more or less yellowish brown below. 206 CALIFORNIA MAMMALS. Length of adult males about seven feet; female about four feet. Type locality, Bering Sea, North Pacific Ocean. The only present known breeding grounds of the Northern Fur Seal are the Pribilov or Fur Seal Islands of western Alaska, where Fur Seals are more or less abundant from June unul No- vember. The remainder of the year is spent in a great migration in the open sea, passing southward, eastward, northward and northwest to the breeding grounds again. Their great oval course brings them off the northern coast of California in early spring, though few are seen as far south as off the Farallones. When California was first settled by the whites Fur Seals were occasion- ally found on some of the islands and at a few localities on the mainland, but whether these were of this or the following species is not now known. Genus Arctocephalus Cuvrer. (Bear—head.) Skull similar to that of Zaluphus but with smaller occipital and saggital crests; molariform teeth six above and five below; pelage with abundant underfur. Dental formula, I, 3—2; C, 1—1; P, 4—4; M, 2—1K 2=36. Arctocephalus townsendi Merrtam. (For Chas. H. Townsend. ) GUADALOUPE FUR SEAL. There are no skins of this species in any scientific collection and the species is definitely known only from the skull. There are four weatherworm skulls in the National Museum, only one being reasonably perfect. Dr. Merriam contrasts them with skulls of the Southern Fur Seal from the Galapagos Islands, finding the _skull of townsendi to be smaller; rostrum shorter; nasals shorter, etc. Type locality, Guadaloupe Island, Lower California. The Guadaloupe Fur Seals are known to still occur in very small numbers at the Guadaloupe Islands. It is believed that they formerly occured on the Santa Barbara Islands, and there is a bare possibility that they may be found there again. FELID.® 207 Suborder Fissipedia. Terrestrial Carnivores. Limbs long, mobile, adapted for walking; toes free, with long, sharp claws; first and fifth toes not longer than the others: external ears well developed ; incisors three above and three below, on each side of the middle; a highly specialized premolar or molar (‘sectorial’) cutting tooth behind the middle of each jaw. Family Felidee. ( Cats.) Digitigrade; front feet with five toes; hind feet with four toes; claws retractile; tail long or short; upper surface of tongue covered with sharp points, rasp-like; skull very short and broad; rostrum very short; teeth 28 or 30. The family of Cats is very generally distributed over the world except in Australia. There are three living genera, and over fifty species are now known. The food is principally the flesh of animals caught by themselves. Cats are principally nocturnal in habit, terrestrial or some- what arboreal. The seasonal changes of pelage are not great, the sexes are alike in some species, more or less unlike in others, the young often differ in color from adults and are usually spotted. Genus Felis Linn. (Cat.) Tail from one fourth to one half the total length; ears not tufted; legs of moderate length; upper sectorial tooth (last pre- molar) very large, with three cusps and an inner tubercle on a separate root; upper molar very small and placed inside the back corner of the sectorial tooth; front upper premolar very small; incisors small; brain case narrow; temporal crests parallel and nearly united along the saggital suture; postorbital processes small. Dental formula, I, 3—3; C, 1—1; P, 3—2; M, 1—1 X2=30. 208 CALIFORNIA MAMMALS. Felis hippolestes olympus Merriam. (Horse—robber, of the Olympic Mountains. ) PACIFIC COAST COUGAR. Above varying from rufous brown to grayish tawny accord- ing to season, locality and probably individually (dimorphism), darkest on the back and tail: face dusky brown; a pale spot over each eye; convex side of ears blackish except the back side, which is gray; a blackish patch at base of whiskers; lips and chin white; neck dull fulvous, palest below; breast and inside of thighs dirty white; end of tail blackish. Newly born young; back and legs spotted and tail ringed with dark brown. Length about 2135 mm. (84 inches); tail vertebre 700 (28); hind foot 250 (10). Type locality, Olympic Mountains, Washington. The Pacific Coast Cougar ranges over the Pacific coast re- gion from British Columbia to northern California. Cougars are not often found in dense forests and seldom in open plains, but prefer hilly localities with some timber and brush for cover. In some few localities they are sufficiently common to be trouble- some to stock, but in the greater part of the west they are so rare that comparatively few people can say that they have seen a Cou- gar alive at large. I have knocked about in the wildest parts of the west much of the last thirty years and I have yet to see a live Cougar outside of a cage. I have seen their tracks in sand or dust a few times in out-of-the-way places and that is all. I once. heard a distant cry that I suppose was made by a Cougar. It was in the night and was a loud wailing cry that im the distance had an unpleasant human tone. The food of Cougars is flesh exclusively, which they prefer to kill themselves, rarely eating carrion unless forced by hunger. Being strong and powerful they prefer Jarge game, such as deer, colts, hogs, grouse and turkeys. ‘They are not ferocious and kill only for food. Instances of their attacking people have occurred, but these are very rare and they have learned to avoid man. In South America there is a widespread belief among the Indians FELIDA 209 that the Cougar will protect man from other animals, such as the Jaguar. Cougars have frequently been tamed, and have become interesting pets when not teased. The flesh of Cougars is said to look and taste like veal. The number of young is commonly two, but sometimes three and four. They have bred in captivity several times. The Cougar is known by a great variety of names. Among these are Panther, Painter, Red Tiger, Puma, Catamount, American Lion, California Lion, Mountain Lion, etc. The Indian name Puma is perhaps the best one and Cougar next. Felis aztecus browni Merriam. (For Herbert Brown.) BROWN COUGAR. Paler and grayer than olympus; teeth and audital bullz smal- ler; size probably averaging a little less . A young Cougar that I saw in a cage was tawny drab gray above; lower side of head, breast and back part of belly whitish; tail like back except dusky tip; a blackish spot at base of whiskers; nose to eyes brown; a short perpendicular black stripe over each eye. It was about 45 inches long; tail 15; hind foot 7; ear a little less than 2. It was probably about four months old. Type locality, near Yuma, Arizona. Brown Pumas range over northern Lower California, south- ern California, Arizona and the Colorado Valley. They are scat- tered through the mountains and in the timber of the river bot- tom in the Colorado Valley. Genus Lynx Kerr. (Sharp sight.) Legs long and strong; tail very short; ears usually tufted; a ruff of long hairs on the neck; but two pairs of upper premolars ; teeth otherwise similar to those of Felis; brain case broad; tem- poral crests widely separated; postorbital processes long, almost meeting; pterygolds long and very slender. Dental formula, I, 3—3; C, 1—1; P, 2—2; M, 1—1X2=28. 210 CALIFORNIA MAMMALS. Lynx eremicus Mearns. (Hermit.) DESERT LYNX. Summer pelage (May to Sept.) ; above grayish tawny olive more or less mottled or spotted with brown or blackish, usually with a pair of narrow interrupted black stripes along the back; crown with indistinct narrow blackish stripes; an indefinite whitish eyering surrounding black eyelids; whiskers mostly white, with several rows of small black spots or lines at their basis; con- vex surface of ears black enclosing a triangular pale gray spot, which often covers half the ear; upper side of the tail similar to the back, with black tip and one to six black bars, the interven- ing spaces becoming whitish toward the tip; under side of tail white; outside of the legs more tawny than the back, indistinctly spotted with brown or blackish; inner side of legs grayish or brownish white distinctly barred and spotted with black; throat white sometimes spotted with blackish; a wide buffy or tawny band across the breast, usually spotted with blackish; belly white spotted with black. Winter pelage. (Sept. to May) ; tawny shades of upper parts replaced with drab gray. Young; at first tawny thickly spotted with blockish, the spots small; later the color be- comes grayer and the spots larger and fewer. Length about 825 mm. (32.50 inches) ; tail vertebrz 160 (6.30) ; hind foot 170(6.70) ; ear from crown 80(3.15) ; the tuft of hairs nearly an inch longer. Weight 12 to 20 pounds. The female averages smaller than the male. Type locality, Colorado Desert, California. Desert Lynxes are common in most of the wooded and brushy parts of central and southern California from the seacoast to the Colorado River, and in northern Lower California. They vary greatly in amount of spotting, shade of color, size of ear tuft and barring of tail, dependent on age, season and wear of pelage. Be- fore me lie seventeen Lynx skins taken in one locality (35 miles northeast of San Diego), all prepared and measured by myself, therefore strictly comparable. These vary in color from a tawny olive above with scarcely an indication of spots, to drab gray FELID 211 thickly spotted and barred with black everywhere, with interme- diate examples fully connecting one extreme with the other. The tails of two have black tips with no bars, while others have two to six bars. In addition to these are two Coloiado Desert ex- amples which I am unable to separate subspecifically from the coast form. I have seen a number of others from the Desert also. Desert Lynxes prey on all the smaller animals and birds and frequently on poultry. They ordinarily prowl about at a walk. If Desert Lynx. pressed they can run rapidly a short distance, but if chased by dogs they soon run up a tree. They can leap a considerable dis- tance. The only vocal sounds that I have heard from Lynxes are threatening growls if approached while fast in a trap, at which time they appear quite formidable. They ‘spit’ like a domestic cat. The senses are all acute. They do not appear to be very courageous. I can learn of but three instances of their having at- tacked people, all occuring in San Diego County. Two of these 212 CALIFORNIA MAMMALS, attacks were unprovoked and the third was practically in self de- fence. Lynxes do the greater part of their hunting at night, yet they prowl around more or less in the daytime. Much of the poultry they get is caught in the middle of the day. I have trapped suc- cessfully for Lynxes by putting the bait in the back part of a crevice of rock, between roots of trees or in V-shaped openings of thick brush, placing the traps two or three feet in front of the bait. Loose rocks or brush are placed at the sides of the traps to guide the cat over them. I usually put two traps in front of each bait, one in front of the other. An old hen is good bait, but any fresh flesh will answer. The bait should be renewed daily. This is a good method of trapping for all carinivores. The young appear to be born in March and April. About the end of May I saw two kittens playing about the crevices of a rocky cliff and trapped one, shooting the parent as she was lying on a rock above the cliff. The kitten was about a month old and very little injured so I kept it alive some time. It did not become reconciled to captivity and would jump against the wire netting with a spiteful growl and spit every time I came near. Lynx fasciatus pallescens Merriam. (Banded; pallid.) WASHINGTON LYNX. “Similar to fasciatus but slightly smaller and much paler: general color hoary gray, constrasted with the dark rich rufous of fasciatus. Larger than cremicus and with much larger teeth. Type locality, Trout Lake, Washington. I have not seen this Lynx. Dr. Merriam states that it is common around the base of Mount Shasta. The Canada Lynx is not found in California, though hunt- ers frequently report killing them. Many people think that every Lynx with a tuft of hairs on the ears is a Canada Lynx. The animals of the genus Lynv are often called Wildcats. This name is best restricted to the long tailed Felide. CANIDA 213 Family Ganidee (Dogs, Wolves, Foxes.) Digitigrade; front feet with five toes, the inner toe small and placed some distance above the others; hind feet with four toes; claws not retractile; tail long, usually bushy; tongue nor- mal; rostrum very long; palate not extending much back of mol- ars; teeth usually 42. This is a large family of nearly a doze genera, probably seventy-five living and several extinct species. The family is very generally distributed over the world, including Australia. All are carnivorous, some species exclusively so, but many species eat other food such as fruits. Genus Canis Linn. (Dog.) Pupil of eye circular; tail moderately bushy ; upper incisors with a distinct lobe each side of the main point; incisors of mod- erate size; front cusp of upper sectorial tooth obsolete; first upper molar very large and the second one rather large, each with two prominent outer cusps and a lower tubercular shelf supported on an inner root; lower sectorial tooth (first molar) very large; last lower molar and first lower premolar very small; temporal crests united in one saggital crest; postorbital processes small; angular process of lower jaw long, curved, distinct. Dental formula, I, 3—3; C, 1—1; P, 4—4; M, 2—3’K2=42. Canis ochropus Escuscuoirz. (Ochre—foot. ) VALLEY COYOTE. Above buffy ochraceous mixed with black; below whitish more or less tinged with buff and with the long hairs of throat and breast more or less tipped with black; ears whitish on the inside and tawny or tawny ochraceous on convex surface; nose grayish cinnamon; legs dull tawny ochraceous, paler or whitish on the inside and grizzled with black tipped hairs on the outside next the body; tail, above like the body, below dull tawny ochra- ceous whitish at base and darkening toward the tip which is 214 CALIFORNIA MAMMALS. black, a black spot on the upper side about midway of its length; skull narrow, the nose slender; teeth small for the genus, with wide spaces between the premolars. Length about 1133 mm. (45 inches); tail vertebrae 300 (12); hind foot 180 (7.10). Female smaller. Type locality, California, probably in the central part of the State. Valley Coyotes inhabit the region between the Sierra Nevada and the Pacific Ocean. This race probably does not go high in the mountains, but frequents the foothills and valleys, where they are common. As Coyotes obtain a considerable part of their prey by running it down they hunt principally in open ground, where their game has less opportunity to evade them. Coyotes eat al- most anything in the way of flesh obtainable, including carrion though they prefer fresh meat. They eat beetles, grasshoppers and other insects, grapes and other fruit. They are often a seri- ous pest to sheep owners as mutton is a favorite article of diet with them. On the other hand Coyotes are a material help to the vine- yardist by keeping hares in check, though they sometimes help themselves to a few grapes or rarely a chicken, in payment of their services. It will be remembered that a few years since the State Legislature passed a law giving a bounty for the destruction of Coyotes, with disastrous results to the State treasury and no last- ing benefits to the sheep and cattle industries. Onre of the results of this unwise law was the great increase of hares and the giving of bounties by several Counties for the destruction of hares. Coyotes are swift of foot and able to maintain a rapid run a considerable time. They show considerable skill and cunning in hunting tobether, but not to the extent that is sometimes credit- ed to them. They rarely hunt in large packs, seldom more than three or four in company, and most frequently alone. Their voice is similar to that of a dog, for which reason they have been called Barking Wolves. Their usual series of notes is several short barks followed by a longer note that may be termed CANIDAL 215 a short howl, but no one familiar with the howl of the gray wolf would call the Coyotes song a howl. ‘To me the barking of a Coyote at a little distance is a pleasant sound, probably because of its association with the memory of many a camping trip in plain and desert. Coyotes never attack human beings, and one need be no more afraid of them than of a hare or a fox. Baird says that Coyotes sometimes have as many as ten young in a litter and that they are born in April. I have no other data at hand, but my im- pression is that the number is generally much smaller and that they are born in March and May also. Canis estor Merriam. (Eater.) DESERT COYOTE. Similar to ochropus but paler; buffy, gray above grizzled with black; skull shorter and wider and teeth rather heavier. Length about 1060 mm. (42 inches); tail vertebra 300 (12); hind foot 180 (7.10); ear from crown 125 (5). Female smaller. Type locality, San Juan River, southeastern Utah. Desert Coyotes are common from the eastern slope of the Sierra Nevada and San Bernardino Mountains east to the south- ern Rocky Mountains, and in southern California. Their habits are similar to those of the preceding species. Canis lestes Merriam. (Robber. ) MOUNTAIN COYOTE. Similar to ochropus but larger and somewhat paler; ears smaller; tail broadly tipped with black; skull larger and heavier with nose much broader; teeth larger. Length about 1170 mm. (46 inches); tail vertebre 320 (12.60) ; hind foot 200 (7.85). Female smaller. Type locality, Toyabe Mountains, central Nevada. Mountain Coyotes are found in the higher mountains of northern California, in the Sierra Nevada and iu the mountains 216 CALIFORNIA MAMMALS. eastward to the Rocky Mountains. In the interior northward they are found to the plains of British America. In California in summer this species seems to be limited to the mountains and high plains of the northeastern part of the State, coming lower in win- ter. Canis mearnsi Mrrriam. (For Dr. E. A. Mearns. ) MEARNS COYOTE. Similar to ochropus but deeper colored, more tawny; skull and teeth similar to those of estor; size of estor. Type locality, Pima County, Arizona. Southern Arizona, northern Sonora, the mountains of north- ern Lower California and of southern California. This brightly colored coyote occurs in small numbers in the mountains of San Diego County. Little harm would be done 1f all the Californian Coyotes were grouped together under the name ochropus. There is consider- able individual and seasonal variation of color, and the skulls, which are the best guides, in most cases require careful compar- isons with good series to decide which species the individuals be- long to. Those not experts will find it difficult to determine the species of Coyotes. Canis mexicanus Linn. GRAY WOLF. Size large; general color varying from very pale gray to blackish; commonly yellowish gray above, more or less grizzled with long black hairs, the amount of black being quite variable: lower parts pale yellowish gray, sometimes with black tips to the hairs of the neck; ears brownish yellow or reddish; tip of tail blackish. Length about 1525 mm. (60 inches); tail vertebre 380 (15); hind foot 230 (9). Type locality, Mexico. CANID & 217 A very few Gray Wolves live in the high Sierras and in the mountains of northeastern California. I do not know of any California example in any museum or private collection. Genus Vulpes Finscu. (Fox.) Pupils of eye elliptical; tail long and bushy; upper incisors rather small, not distinctly lobed; teeth otherwise similar to those of Canis; temporal crests low, parallel, not widely separated; up- per postorbital process small, the corresponding process on the zygomatic arch obsolete; angular process of lower jaw short, nar- row, curved. Dental formula, I, 3—3; C, 1—1; P, 4-4; M, 2-3 X2=42. Vulpes macrotis Merriam. (Great—ear.) LONG-EARED FOX. Small; ears large, color very pale, above pale grayish buff; chest and fore legs buff ; remainder of lower parts buffy white; tip of tail and a small spot on upper side near base chestnut or sepia. Length about 760 mm. (30 inches); tail vertebre 290 (11.40); hind foot 120 (4.75); ear from crown 95) (3.75)- Wetght four pounds. Type locality, Riverside, California. Long-eared Foxes are a desert species. The type came from the western edge of their range. They are not very common in any part of their range. They are found in southwestern Arizona, in the Colorado and Mohave Deserts and a few straggle through the San Gorgonio Pass west and south. They live in open, nearly level localities, quite the reverse of the habit of our other Foxes. They live in burrows, these often having several entrances. They are nocturnal and crepuscular, but are often abroad some time af- ter sunrise. ‘They are not hard to trap. I do not remember hear- ing any bark or other vocal sound that I could attribute to them. Their food seems to be the small rodents living im the region that they inhabit. I have caught young of this species about the mid- 218 CALIFORNIA MAMMALS. dle of April that were about a month old. There were three in this litter and this is probably about the usual number. Vulpes muticus Merriam. (Unarmed. ) SAN JOAQUIN FOX. Similar to macrotis but larger; hind foot and tail longer; back browner; skull larger; rostrum much broader; teeth larger. Length about 950 mm. (37.50); tail vertebre 350 (14); hind foot 125 (5). Type locality, Tracy, San Joaquin Valley, California. So far as I know this Fox is found only in the San Joaquin Valley. Vulpes necator Merriam. HIGH SIERRA FOX. Red pelage; face dull fulvous, strongly grizzled with whit- ish; sides of nose dusky, grizzled with buffy; upper parts from back of head to base of tail dark dull dusty fulvous, becoming muchpaler on the sides where the whitish underfur shows through ; black of fore feet reaching up on the upper surface of fore leg to elbow ; black of hind feet ending at or near tarsal joint, with only slight traces on the outer side of leg; tail at base fulvous, becom- ing buffy whitish and profusely mixed with long black hairs; base with the usual black spot; tip white. Black-cross pelage; back grizzled black and whitish or buffy; sides buffy; feet, legs aid belly black; tail mainly black with white tip. Length about 965 mm. (38 inches); tail vertebre 370 (14.50) ; hind foot 160 (6.30). Type locality, Whitney Meadows, Sierra Nevada, California. Known only from the high Sierra from 6,000 feet altitude upward. Vulpes cascadensis Mrrriam. CASCADE MOUNTAIN FOX. Red pelage; general color of head and upper parts straw yel- CANIDA 219 low ; face from nose to eyes dull yellowish fulvous; rest of top of head and base of ears pale straw yellow; back golden yellowish fulvous; tail very pale; black of ears restricted, that of the feet confined to the upper surface and mixed with pale fulvous. Black- cross pelage; top of nose grizzled brownish; sides of nose and imperfect ring around the eye dusky or blackish grizzled with whitish; top of head yellowish white, the black underfur showing through; dorsal cross (back and shoulders) blackish, overlaid and nearly concealed by yellowish white or buffy; sides of neck, flanks, and post-scapular region golden yellow; upper two thirds of ear black ; fore feet black, grizzled above the elbow with yellow- ish; hind feet and legs grizzled dusky and buffy, becoming nearly black on top of the feet; chin, throat and band down middle of belly black or blackish; tail black mixed with buffy and tipped with white; skull as compared with that of necator has a wider rostrum, the audital bullz are larger and the teeth are smaller. Length about 1070 mm. (42 inches); tail vertebrae 410 (17); hind foot 173 (7). Type locality, Trout Lake, Cascade Mountains, Washington. The Cascade Mountain Fox is found in the Cascade Moun- tains of Washington and Oregon and in the northern Sierra Ne- vada. This species and the High Sierra Fox belong to the group which in one pelage is called the Silver Gray Fox and in another pelage the Cross Fox. The latter name is due to the fact that a dark stripe on the top of the neck and back is crossed by; another on the shoulders. The Silver Gray Fox is black with the hairs, particularly on the hips, with long white tips, producing a silvered appearance. This stage of pelage is probably very rare in Cali- fornia, if it really occurs at all. These different pelages are not seasonal but are to a considerable extent dimorphic, though there is also some seasonal differences. Genus Urocyon Barrp. (Tail—dog.) Pupils of eye elliptical; tail long, bushy, with a concealed mane of stiff black hairs on its wpper side; teeth as in Vulpes; 220 CALIFORNIA MAMMALS. temporal crests distinct, widely separated, converging posteriorly ; upper postorbital process large and the corresponding process on the zygomatic arch nearly as large; lower jaw but slightly curved; the angular process long, wide, curved, and with a deep wide notch below anteriorly. Dental formula, I, 3—3; C, 1—1; P, 4—4; M, 2—3X2=42. Urocyon californicus Mrarns. CALIFORNIA GRAY FOX. General effect above grizzled gray, underfur grayish buff, darkest on the head, lightest on the sides, thickly mixed with long hairs which are black in the basal two thirds covered by the under- California Gray Fox. fur, then white, then black to tip, the black tip being shorter and paler on the sides; upper part of head similar to the back; upper side of nose nearly to eyes mixed brown and gray; sometimes quite pale; a white area in front of whiskers, this usually including the point of the under lip; remainder of lower jaw black, this area joining the black area at the base of the whiskers; inner surface and edges of ears whitish; convex surface of ears mixed dusky, CANIDA 221 gray and tawny near the tip changing to clear tawny, ochraceous or brownish buff toward the base of the ear, this color extending on the sides of the neck nearly to the shoulder, outer and back sides of legs tawny or ochraceous; remainder of under side of head and neck, inside of legs and more or less of breast and belly white, front side of fore legs and feet and of hind feet mixed white and dusky; tail with a stripe of long’ stiff black hairs on the upper side, a fulvous stripe on the underside, the remainder like the back. Length about 950 mm. (37 inches) ; tail vertebrae 380 (15) ; hind foot 130 (5.10); ear from crown 82 (3.25). Weight 8 pounds. Type locality, San Jacinto Mountains. California. California Gray Foxes are found in nearly all the forested parts of central and southern California, but are not common in many places. I found them up to 9,000 feet altitude in the San Jacinto Mountains. Their food is small mammals, birds, in- sects and fruit. I have heard but few complaints of these Foxes destroying poultry. They are not very difficult to trap. Their bark is hoarse and not loud. The young are born in April, May and June. Urocyon californicus townsendi Merriam. (For C. H. Townsend. ) TOWNSEND GRAY FOX. Similar to californicus; ears larger; tawny parts deeper colored; rostrum broader; teeth heavier. Type locality, Baird, Shasta County, California. Common around Mount Shasta and probably in most suit- able places in northern California. Urocyon littoralis Barrp. (Of the seashore.) SAN MIGUEL ISLAND FOX. Very similar in color to californicus but size very much smal- ler. 222 CALIFORNIA MAMMALS. Length about 725 mm. (28.50 inches) ; tail vertebrae 250 (10); hind foot 110 (4.33). Weight about four and a half pounds. Type locality, San Miguel Island, Santa Barbara group, California. Urocyon littoralis santacruzz Merriam. SANTA CRUZ ISLAND FOX. Similar to /ittoralis but colors brighter, skull smaller; nasals narrower ; rostrum narrower. Length about 710 mm. (27.90 inches); tail vertebree 265 (10.35); hind foot 108 (4.25). Type locality, Santa Cruz Island, California. Urocyon clementze Merriam. SAN CLEMENTE ISLAND FOX. Similar to littoralis but skull smaller; nasals more tapering posteriorly; rostrum more slender. Type locality, San Clemente Island, California. ' Urocyon catalinse SANTA CATALINA ISLAND FOX. Similar to littoralis but tail longer; nasals narrower and not constricted in the middle; rostrum longer. Length about 760 mm. (30 inches); tail vertebrae [2&5 (11.25), hind foot 112 (4.40); ear from crown 63 (2.50). These various forms of Island Foxes are so much smaller than our mainland Foxes that anyone can distinguish between them at sight, but when it comes to discriminating the various island forms from one another it is a different matter, and most people will name them from the island they are found on without regard to technical characters. Island Foxes are or have been common on nearly all of the CANID As 223 Santa Barbara Islands, and on some they were abundant. They seem to be subject to an epidemic of some kind. In 1886 I found them abundant on Santa Catalina Island. In 1893 I spent nearly a month at the same place and saw none and was told by residents that they were rare but appeared to be increasing. In 1886 I saw two and three together several times. They were not shy and moved about in the daytime to some extent. Several times I heard a bark in the night that sounded much like that of the gray fox of the mainland. Those foxes that I skinned had many cactus thorns in their skin and flesh. The flat leaved cactuses (Opuntia) are very abundant on the island and of necessity the Foxes get pricked in pursuing squirrels and birds in the cactus thickets, to which these resort for protection. The Foxes patrol the beaches to pick up any fish that may wash ashore. I saw no burrows and suppose that the Foxes spend the day in the dense thickets of brush on the hillsides. 224 CALIFORNIA MAMMALS. Family Procyonidée. (Raccoons, etc.) Plantigrade or digitigrade; five toes on all the feet; tail long, bushy, usually annulated with rings of different colors; rostrum moderately long; molars tuberculate; teeth 36 to 40. This is a small family of five or six genera and about a dozen species. One genus (lurus) of southern Asia is placed in a subfamily by itself and may not belong to this family; all the other genera are limited to temperate and tropical America. They are principally nocturnal, arboreal and _ terrestrial. They are but partly carnivorous, eating small birds, small mam- mals, fish, eggs, insects, fruits and seeds. Genus Bassariscus Cougs. (Little Fox.) Digitigrade; size rather small; body rather slender; ears large, tail about as long as head and body, annulated, skull in many respects like that of ["wlpes in shape of teeth, shortness of palate, flatness above (not strongly arched as in Procyon), audital bullae and surroundings part more like Procyon. Dental formula, I, 3-—3; C, 1—1; P, 4—4; M, 2—2; X2= 40. Bassariscus astutus raptor Bairn. (Sagacious; a robber ) CALIFORNIA RING-TAILED CAT. Wood brown darkened above by black tips to the long hairs; below buffy white; basal half of the fur slate gray; grayish white area around and behind the eye and another below the ears brown- ish white darker on the external base; tail black above with about seven narrow white rings, these white rings widening below and taking the form of large connected triangles; soles of hind feet thickly haired half way from the heels towards the claws. Length of male about 760 mm. (30 inches) ; tail vertebrz 375 (14-75); hind foot 67 (2.65); ear from crown 38 (1.50). Weight two and one half pounds. Female smaller. California Ring- tailed Cats are not very common anywhere. In southern California they are rare. J have heard of only two LVO GAATIVI-ONIA VINAOAITVO i \ ja AN \\ Mi AN i Pn N PROCYONID 225 instances of their being taken in the San Bernardino Mountains, and none further south. They frequent forests in the mountains. My only personal acquaintance with this species consists in trap- ping a pair on Eel River, Mendocino County. One of these we kept alive a few hours to observe its actions and make a: drawing of it. This one permitted stroking and considerable handling, though it once nipped Mr. Fenns thumb severely when he handled it too freely. The tracks were cat-like, not full footed like those of a rac- coon. One that I got a brief look at before I put out the traps acted much like a fox. I heard a hoarse fox-like.bark one night that I attributed to one of these animals. This pair inhabited a mass of boulders on a hillside thickly overgrown with brush, making a fine shelter. In dying the male emitted a weasel-like odor, not strong yet disagreeable. They are said to make nests in hollow trees. ‘They are sometimes tamed by mine1s and become valued pets, as they keep the cabins free of mice. My female, caught May 16th. contained three small foetuses. They are said to rear four kittens more often. The miners often call this animal the Civet Cat, but that name properly belongs to a differ- ent animal. Genus Procyon Srorr.. (Before; dog.) Plantigrade; size rather large: body stout; ears rather small; tail about half as long as head and body, annulated; skull strongly arched; sectorial teeth modified, scarcely more than tuberculate ; palate extending back about half way from last molar to audital bullz. Dental formula, I, 3—3; C, 1—1; P, 4—4; M, 2—2, X2=40. Procyon psora Gray. (Itch.) CALIFORNIA RACCOON. Above yellowish gray more or less heavily darkened by long black tips to the coarse hairs; underfur seal brown or hair brown; 226 CALIFORNIA MAMMALS. a broad black band across the face, the eyes being within its upper border, bordered behind with grayish white which shades into the blackish of the crown and yellowish gray of the sides of the neck ; region of the mouth and sides of the nose dull white with a narrow prolongation from the corners of the mouth cutting off the black facial band from a blackish patch beneath the neck; convex base of the ears and a large ill-defined spot behind them black ; remainder of the ears dull white; underfur of lower parts drab gray grizzled with an intermixture of long white hairs; tail brownish buff with five to seven black or dusky rings narrower than the pale interspaces, and all but two or three of the last black rings interrupted below; tip of tail black; fore feet pale drab; toes and inner edge of hind feet pale smoke gray; remain- der of hind feet sepia or dusky. Length about 840 mm. (33 inches); tail vertebrae 295 (11.60) ; hind feet 125 (4.90); ear from crown 57 (2.25). Type locality, Sacramento, Cafifornia. Raccoons are found in the timbered regions of the lower mountains and valleys of California and around some of the bays along the seacoast where no timber is near. They prefer to hunt along streams and are common in the timbered bottoms of many rivers and creeks. The food is quite varied, including mice, small birds, eggs, insects, frogs, fish, molluscs, green corn, fruit, etc. They are good swimmers but do not dive. They are fond of fish, but can! get only such as they can snatch at the waters edge, or find dead along the shores. If they find a henroost which they can enter, or where they can reach poultry through the laths, they are likely to do considerable harm. They frequently visit vineyards, eating the ripe grapes. The harm they do is but partly offset by the considerable amount of mice that they destroy. They travel about a considerable distance from home, some- times having a beat several miles in length, which they take sev- eral nights to cover. I trapped one pair that got around to my vineyard about once a week, and in the interim visited one local- PROCYONIDA 227 ity a mile in one direction, and another three miles in an. opposite direction, a part of the route being along two small streams, and a part of the remainder along a road in a forest of scattered oaks growing among thick brush. Raccoons frequently hunt in pairs or families in the autumn, but more often alone the re- mainder of the year. The ordinary gait of a Raccoon is a slow trot, and they can- not run fast. They are clever hunters, and do most of their hunting on the ground, but they pass the day in hollow trees or in crevices among rocks. They are expert climbers. They are not difficult to trap; a bait of fresh meat usually proves too much for them. The young are probably born in April and May; they are said to be three to six in number. ’Coons do not hibernate in California, the region which they inhabit not being cold enough to make hibernation necessary. I do not think they occur above 5,000 feet altitude. . Procyon psora pacifica Merriam. PACIFIC RACCOON. Similar to psora, but darker, the ground color being darker and the black tipped hairs very thick; black rings of tail not broken on the under side; last premolar, first molar and audital bulle larger. Type locality, Cascade Mountains, Washington. Dr. Merriam says that Pacific Raccoons are common around the base of Mount Shasta. This is probably about the southern limit of this form. Procyon pallidus Merriam. (Pallid.) DESERT RACCOON. Very pale; pattern of colors as in psora; buff tints of psora replaced by grayish white; above pale gray darkened by short black tips to the coarse hairs; below grayish white, the drab un- 228 CALIFORNIA MAMMALS. derfur being nearly obscured; tail long and slender, with narrow blackish rings; hind feet pale gray. Length about 850 mm. (33.50 inches); tail vertebra 310 (12.20) ; hind foot 130 (5.10) ; ear from crown 60 (2.35). Type locality, New River, Colorado Desert, California. Desert Raccoons are common in the bottom lands of the lower Colorado River, frequenting the borders of the sloughs and ponds along the overflow channels so common for miles from the river below Yuma. I have trapped several at the mesquit bordered lagunas in “New River” channel in the heart of the Colorado Desert, 50 miles from the main channel of the Colorado River. They follow these overflow channels, living principally on the fish left by the overflows, helped out with birds, small mammals, frogs and a few insects. After the ponds dry up they probably work back to the main channel. URSID/ 229 Family Ursidge (Bears.) Plantigrade; size large or very large; body stout; five toes on all the feet; tail rudimentary; rostrum short; molars tuber- culate; teeth 42. This family consists of four or five genera and some fifteen or more species, widely distributed through the northern hemi- sphere, with one South American species They are terrestrial and most species are diurnal or nocturnal, according to circum- stances. The food of most species is principally of a vegetable nature. Genus Ursus Linn. (Bear.) First three premolars in each jaw small, single rooted, often deciduous; sectorial teeth greatly modified, practically tubercu- late; audital bullz small. Ursus horribilis Orv. (Horrible. ) GRIZZLY BEAR. Very large; claws of fore feet very long, twice the length of the claws of the hind feet, nearly straight; skull and teeth large and massive; hair coarse; color variable, usually the tips of the hairs are yellowish or whitish in contrast with the dark basal part; general color yellowish brown, grayish or brownish yellow, with an indistinct dorsal stripe and often a dim stripe on the side; feet and legs often blackish; hairs of neck long, forming a short mane; hind legs longer than fore legs. The length of old males is about seven feet, sometimes more, as Lewis and Clark record one measuring nine feet from nose to end of tail. The ears are about three inches long, andi the tail only about two inches. The claws of the fore feet are very long, five or six inches in adult males Females are smaller than males. Type locality, Montana. Grizzly Bears were formerly common in California, but are 230 CALIFORNIA MAMMALS. now rare, with the probability of their becoming extinct in the near future. As I have never seen a live Grizzly at large I can say nothing of their habits from personal observation. When California was first settled Grizzly Bears appear to have fre- quented the edges of valleys and open places in forests; but the few that are left now hide in brushy canons of rough, inaccessi- ble parts of low mountains. They do not climb trees. The food of Grizzly Bears is principally of vegetable nature, including roots, wild fruits, seeds, nuts, grubs and the larger insects. To this they add more or less flesh. When Grizzlies were more common they killed some domestic animals, such as colts, cattle, hogs and sheep. They are abroad as much in the daytime as in the night, appearing to hunt for food whenever they are hungry, regardless of the time of day. Grizzly Bears are very tenacious of life, and are said to be able to run a long distance after being shot through the heart. The cubs are said to be usually two at a birth, sometimes three. They are very small when first born. Grizzlies breed readily in confinement. It is pretty well settled now that the so-called Cinnamon Bear is a color phase of the Grizzly. Ursus americanus Patias (Black Bear.) BLACK BEAR. Smaller; claws of fore feet curved, not much longer than those of the hind feet; color brownish or blackish, the tips of the hairs not conspicuously lighter ; pelage comparatively soft and fine. No reliable measurements of this species are at hand. Black Bears are still found in the northern part of Califor- nia, but are rare or extinct in the southern part of the State. Their food is similar to that of the Grizzly, with a less proportion of flesh. The young are commonly two, occasionally four in num- ber. These are born in the middle of the winter, in a very un- URSIDAi 231 developed state, and do not run about: until they are about ten weeks old. Black Bears are good climbers and swim well. They are not nearly as ferocious as the Grizzly Bears, but under all ordi- nary circumstances will run away from man. As their scent, hearing and sight are acute, it is difficult to get near them ex- cept by accident. 232 CALIFORNIA MAMMALS. Family Mustelidge. (Weasels, etc.) Plantigrade or digitigrade; anal scent glands usually present and often highly developed; five toes on all the feet; tail long; rostrum short; sectorial teeth usually but little modified; molars usually not tuberculate; teeth 32 to 38. The Mustelide is a large and important family, containing many species of commercial importance, and other species notable for their disagreeable odor, or for other characteristics. The family is found in nearly all parts of the world except Australia. There are fifteen or more genera, divided in three subfamilies, and nearly a hundred species. They are almost exclusively car- nivorous, feeding on birds, mammals or fish caught by them- selves. Some species are digitigrade, but more are plantigrade. Most species are terrestrial, some are aquatic, and a few are partly arboreal. Most species are nocturnal. Some species have very marked seasonal changes of pelage, while many wear the same colors all the year. Subfamily Lutringe. (Otters.) Feet webbed ; body long; skull very short and wide; teeth blunt, the molars tuberculate. Genus Latax Giocrr. (A sea otter.) Fore feet small; hind feet large, fully webbed, flipper-like but haired on both surfaces; teeth comparatively smooth, mas- sive. Dental formula, I, 3—2, C, 1—1; P, 3—3; M, 1—2, "X2=32. Latax lutris nereis Mirriam. (A daughter of Nereus, a Grecian sea god.) SOUTHERN SEA OTTER. Dark liver brown, with a frosted appearance, the “‘frosting” being caused by a scanty intermixture of long coarse hairs in MUSTELIDA£ 233 the fine dense fur; head brownish white; neck grayish brown; ears very small and situated low on the side of the head; skin very loose on the body. In summer the long pale hairs are more numerous, producing a grizzled appearance. Length about 1200 mm. (48 inches); tail vertebra 280 (11); hind foot 150 (6) by 100 (4) in breadth. Type locality, San Miguel Island, Santa Barbara group, Cal- ifornia. Sea Otters were formerly more or less common along the whole Pacific Coast from Lower California to Alaska and around to Japan. ‘They are now rare everywhere. A very few are still living about the islands off the coasts of Lower and southern California. The fur of the Sea Otter is the most valuable of any single skin known, the price of the finest skins running up into the hundreds of dollars. Sea Otters frequent kelp beds among rocky islets, where they feed on mussels, clams, sea urchins and other mollusks, fish and kelp. They are excessively shy, and their senses are very acute; hence they are very difficult to obtain. The single young are brought forth at any season, the intervals apparently being more than a year. The young are said to suckle more than a year. Genus Lutra Brisson. (Otter.) Feet short, broad, full webbed, the hind feet of normal shape; last upper premolar distinctly sectorial; tail long, taper- ing, not flattened. Dental formula, I, 3—3; C, 1—1; P, 33; M, 1—2, X2=34. Lutra canadensis pacifica Ruoaps. (Of the Pacific Slope) PACIFIC OTTER. Dark liver brown, paler on the under side of the head, throat and breast; size averaging larger than typical canadensis. Length about 1300 mm. (62 inches); tail vertebrae 460 (18); hind foot 140 (4.50). 234 CALIFORNIA MAMMALS. Type locality, Kittittas County, Washington. Pacific Otters range from Central California northward through Alaska. As the principal food of Otters is fish caught in fresh waters they do not occur in southern California. They are known to occur about suitable streams in the central and northern part of the State. At the forks of Eel River I saw where an Otter had been playing on the sand at the river shore. It had not gone more than a dozen feet from the water. Its tracks showed that it had pushed itself along on its belly in the sand. The food of the Otter is fish caught by pursuit in the water, but usually eaten on the bank. A pastime of ‘Otters is sliding down banks on their bellies, banks that end in the water being usually chosen. The young are born in March and April, and are one to three in number. Otters are nocturnal, very shy, and therefore seldom seen. Their fur while valuable is not nearly as high priced as that of the Sea Otter. Lutra canadensis sonora Ruoaps. SONORA OTTER. Similar to pacifica, but paler and apparently larger, postor- bital processes slender ; distance from point of angular process of lower jaw to summit of coronal process greater proportionally than in pactfica. Type locality, Montezuma Well, Yavapai County, Arizona. Sonoran Otters are occasionally caught in the Colorado River. While not common, they are not very rare. Subfamily Melinge. (Badgers and Skunks.) Toes but partly or not webbed; body short and stout; skull comparatively long; sectorial teeth moderately developed. Genus Taxidge WarerHouse. (Badger—form.) Body stout, very flat; tail short, flat; fore claws but little MUSTELIDA® 235 curved, very large; anal scent glands small; last molars tuber- culate; audital bull large; palate extending half way from last molar to audital bulla; occipital crests very large; brain case triangular, very wide posteriorly. Taxidea taxus neglecta Mrarns. (Overlooked. ) WESTERN BADGER. Above grizzled gray, the basal half of the hairs pale yellow- ish brown, the tip buffy white or grayish white, the subapical fourth dusky; a narrow white stripe over the head, usually to the shoulders, often extending to the rump; nose, upper part of ~ - Western Badger. the head each side of the white stripe, a patch in front of the ears and feet black; under side of the head, with a point extending up between the eye and the ear white; under side of body buff, with an irregular white stripe in the middle; tail yellowish brown grizzled with black and white above, paler beneath; hairs of sides much longer than those of upper and under surfaces. Jm- mature; less grizzled with gray. 236 CALIFORNIA MAMMALS. Length about 735 mm. (29 inches); tail vertebre 135 (5.33); hind foot 100 (4); ear from crown 30 (1.20). Type locality, old Fort Crook, Shasta County, California. Badgers are not very common in California, but are found in Open country more or less throughout the State. Their food is ground squirrels, gophers, mice, eggs, insects and grubs. The only harm they do man is by digging holes in the ground, these being troublesome in cultivated ground. The young are said to be three or four in number, but I think the number must sometimes be greater, as there are eight mammz. The young are probably born in March or April. Badgers are principally nocturnal in habit. They are slow of foot and capture their prey principally by digging it out of burrows, for which work they are particularly adapted by their shape and great strength. They are shy and prefer hiding in burrows to fighting, but if compelled to fight they are plucky and tenacious. There are probably two subspecies of Badgers in California, the Western (neglecta) in the mountains and higher valleys, and the California (californica Bennet) in the lower valleys. Very much more material than is now available is necessary to settle this question. Genus Mephitis Cuvier. (A foul odor.) Body rather stout; tail long, very bushy; anal scent glands highly developed; head small; skull arched; palate ending even with last molars; occipital crests large; saggital crest small; brain case not widened posteriorly ; audital bullae very small. Dental formula, I, 3—3; C, :—1; P, 3—3 M, 1—2, X2=34. Mephitis occidentalis Barrp. (Western. ) CALIFORNIA SKUNK. Pelage long and coarse, mostly black; a narrow white stripe on the crown; a broad white stripe commencing at the nape, di- MUSTELIDA 237 viding on the shoulders, running along the upper part of the sides and across the hips and ending on the sides of the tail, usually extending but a short distance on the tail—this stripe varying in form and width; hairs of tail four to seven inches in length, the basal half white and sometimes those about the middle of the tail white throughout. Length about 685 mm. (27 inches); tail vertebra 300 (12); hind foot 77 (3); ear from crown 22 (.85). Type locality, Petaluma, California. Central and northern California and southwestern Oregon, east to the Sierra Nevada and Cascade Mountains. Common in mountain and valley, timber and plain. Their food is varied, including mice, small birds, eggs, frogs, insects and grubs. Grasshoppers, beetles and their larvee, in fact, constitute the bulk of their food when these are in season, and these Skunks are really worthy of protection for their usefulness in destroying harmful insects and mice. It is true that they do sometimes de- stroy poultry, but much the greater part of this damage is done by the smaller Spotted Skunks. California Skunks cannot climb, nor can they creep through very small holes, and a properly built poultry house will protect the inmates from this species. This genus has been accused of causing hydrophobia by its bites, but there are good reasons for believing that this is a mis- take, and that the bite of this species never causes hydrophobia. No cases, as far as I can learn, have been reported outside the range of Spilogale, and many instances are known of bites from the larger Skunks that have not resulted in an attack of the dis- ease. California Skunks are not as audacious as the little Spotted Skunks are; but they are very little afraid of man or beast. They are self reliant, bold and inquisitive. In spite of their powerful odor they are preyed upon by foxes, coyotes and great horned owls, as their flesh is as sweet as that of a hare or squirrel. Those persons who, not being troubled with squeamishness, have eaten it pronounce it agreeable in flavor. I never cared to try it. 238 CALIFORNIA MAMMALS. Like most Skunks they have the habit, when angered or defiant, of stamping on the ground with one forefoot, or with both alter- nately. They are suspicious of quick movements, and act ac- cordingly. By moving slowly one can get quite near a Skunk without provoking a discharge of scent. The odor of a Skunk is penetrating, very pungent, and to most people very disagreeable or nauseating; when strongly in- haled it may produce unconsciousness. The fluid, much diluted and administered internally, has proved efficacious as a remedy for asthma, whooping cough and croup. Its disagreeable odor is a bar to its extended use, however. The accidental reception of a small amount of the liquid in the eye is followed by inflamma- tion, lasting a week or so; a large amount has produced the loss of eyesight. In case of such an accident, the eye should be washed out with clean cold water as soon as possible. The odor is produced by the volatilization of a fluid secreted in a pair of glands which lie either side of the rectum, and nearly surround- ing it. These glands are enveloped in a strong muscle which is capable of compressing them with sufficient force to spurt the con- tained fluid in several small streams a distance of twelve to fif- teen feet. The ejection of the fluid is wholly within the control of the animal, and is ordinarily only resorted to in self defence. Skunks are chiefly crepuscular and nocturnal. They occupy burrows dug by themselves when they cannot find hollow logs or suitable crevices in rocks. They are born in April, May and June, and are five to nine in number. The name Polecat be- longs to an European animal of another genus. Mephitis occidentalis major Howe... (Large.) GREAT BASIN SKUNK. Similar to occidentalis but larger; hind foot longer; skull larger, heavier built, broader and flattened; rostrum broader. Type locality, Fort Klamath, Oregon. Eastern Oregon, northeastern California, Nevada and Utah. MUSTELID.E 239 Mephitis occidentalis holzneri Mearns. (For Frank X. Holzner.) SOUTHERN CALIFORNIA SKUNK, Similar to occidentalis but averaging smaller; skull nar- rower; teeth heavier in proportion. Type locality, San Ysidrio Ranch, northern Lower Califor- nia. Southern California Skunks are found in northern Lower California and southern California west of the Deserts, inter- “grading northward with true occidentalis. Habits similar. Mephitis platyrhinus Howett. (Broad—nose.) BROAD-NOSED SKUNK. Externally similar to occidentalis; skull short, broad, flat- tened in front; rostrum very broad; nasals short and broad; zygomatic arches spreading less abruptly and in an even curve nearly parallel to the axis of the skull. Type locality, South Fork of Kern River, California. Southern and eastern foothills of the Sierra Nevada and Owen Valley. Mephitis estor Merriam. (Eater.) ARIZONA SKUNK. Similar to occidentalis ; black stripe on back usually narrow; tail with white tip and more or less white at the sides, the bases : of most of the tail hairs white; skull similar to that of occiden- “ talis; teeth smaller; zygomatic arches heavier. Length about 640 mm. 25.15 inches) ; tail vertebrae 285 (11.25); hind foot 68 (2.67); ear from crown 18 (.70). Type locality, San Francisco Mountain, Arizona. Arizona, New Mexico, Sonora, northeastern Lower Califor- nia and eastern California along the Colorado River. 240 CALIFORNIA MAMMALS. Genus Spilogale Gray. (Spot—weasel. ) Body small and rather slender; tail long and bushy; anal scent glands highly developed; skull rather flat; sectorial teeth well developed; palate not extending much back of molars; sag- gital crest usually small; occipital crest large; auditory bulle rather small; mastoid sinus inflated. Dental formula, I, 3—3; C, 1—1; P, 3-3; M, 1—2, X2=34. Spilogale phenax Merriam. (Deceptive. ) WESTERN SPOTTED SKUNK. Black with white stripes; four parallel white stripes from the head to the hips, a white stripe commencing behind the fore- Western Spotted Skunk. leg running back and up on the hip with a spot on each side of the backbone in the direction of its fellow stripe; a transverse stripe across the back part of the hips interrupted at the back- bone; a spot each side of the rump; more or less white at the base of the tail; terminal third of the tail white, more extensive MUSTEDID 241 below, a white spot on the forehead; more or less white about the corners of the mouth. Length about 400 mm. (15.75 inches); tail vertebrae 165 (6.50); hind foot 46 (1.80) ; ear from crown 15 (.60). Type locality, Nicasio, Marin County, California. Western Spotted Skunks are common in many of the val- leys of central and southern California and in northern Lower California. They do not ordinarily range as high in the moun- tains as the larger Skunks do. The odor of the Spotted Skunk is more pungent than that of the larger species, but it is not as lasting. The only way that I know of to kill this or any other species of Skunk without its emitting its odor is by drowning. By using a box trap and carrying it to water and slowly im- mersing it no scent will be emitted. Ifa steel trap is used fasten it to the end of a long pole and the animal can be slowly dragged to the water and drowned. As long as the animal faces one there is no danger; but if it turns about stop and keep quiet un- til it faces about again. A Skunk will bear some pulling about if carefully handled; they do not waste their means of defense un- necessarily. Sometimes a Spotted Skunk will eat a bit of fresh meat while still in the trap, then a little strychnine will make them quiet; the meat can be reached to the animal on the end of a pole if one moves slowly and carefully. The gait of Spotted Skunks is commonly a trot. The breed- ing season is about April, judging from the size of young Skunks seen in summer. They are very bold, and have so much confi- dence in their means of offense and defense that they seldom run from anything. Their food is much like that of the larger species—that is, mice, birds, eggs, poultry, insects and grubs. I have found parts of a snake in one’s stomach. Their small size enables them to enter almost any hole that will admit a weasel or mink. These little Skunks are often very destructive of poul- try, but there is another reason for destroying them; it is a well established fact that their bite does sometimes cause a form of hydrophobia. Not every bite of a Skunk will induce this dis- 242 CALIFORNIA MAMMALS. ease, and one need not give up hope if bitten, yet due precau- tions should be taken. Spilogale latifrons Merriam. (Broad—front. ) LITTLE SPOTTED SKUNK. Colors and their pattern as in phenax; smaller, skull much broader in proportion to size; last molar smaller. Type locality, Roseburg, Douglass County Oregon. Western Oregon and northern California. Apparently not common anywhere. Habits similar to those of the Western Spotted Skunk. Subfamily Mustelingze (Weasels, etc.) Body long; toes partly webbed; skull usually long and nar- row; sectorial teeth well developed; audital bullz usually large. Genus Gulo FriscH. (Glutton.) Large; body stout; tail short, bushy, the hairs drooping; anal glands moderately developed; skull arched, short, wide; audital bullz of moderate size with tubular meatus; lower sec- torial tooth without inner cusp; upper sectorial tooth large; palate extending one-third of the way from last molar to audital bulla. Dental formula, I, 3—3; C, 1—1; P, 4—4; M, 1—2, K2=38. Gulo luscus Linn. (One-eyed. ) WOLVERINE. Large, blackish; an indefinite broad yellowish band on the sides, running across the hips and meeting its fellow at the base of the tail; front and sides of head grayish. Length about 965 mm. (38 inches) ; tail vertebrae 200 (8); hind foot 170 (6.70). Type locality, Hudson Bay, British America. Wolverines are found in the colder parts of North America MUSTELIDA 243 and Eurasia. In California they are rare, being found only in the Sierra Nevada and the mountains of the northern coast re- gion. I saw a mounted Wolverine in Bridgport, Mono County, that was killed in the neighborhood, and was told of others that had been killed in that region, having been driven down from the higher Sierras by winter storms. They eat anything in the way of flesh that they can capture, steal or find already dead. They are not able to run fast enough to capture many of the larger animals, and the stories told of their climbing trees and pouncing down on animals passing beneath are pure fictions, as Wolverines do not climb trees and can spring but a very short distance. Part of their food is obtained by opening the burrows of other animals, their long claws and great strength enabling them to dig rapidly. Probably a considerable part of their food in the Sierra Nevada consists of yellow-bellied marmots. They are said to be very voracious; hence their Old World name of Glutton. They are also known by the name of Carcajou. In regions where fur trapping is carried on extensively Wolverines are a great nuisance by reason of their destroying traps and carrying away the fur-bearing animals found therein. They also have the reputation of carrying away and hiding arti- cles for which they have no use. They are said to be very cun- ning and difficult to take in traps. Their scent is acute, but their sight is poor. Their fur is used for robes and trimmings. Four or five young are born in May, June or July. Genus Mustela Linn. (Weasel. ) Body slender; legs short; feet rounded; claws semi-re- tractile; tail rather long and large; lower sectorial tooth of mod- erate size; palate extending about half way from last molar to audital bulla; audital bulla rather large; occipital crest small. Dental formula I, 3—3; C, 1—1; P, 4—4; M, 1—2, X2=38. 244 CALIFORNIA MAMMALS. Mustela pennanti pacifica Ruoaps. (For Thomas Pen- nant; of the Pacific Coast.) PACIFIC FISHER. Colors variable, ochraceous, chestnut, blackish, etc., lightest on head and shoulders, darkest on rump, tail and legs; these usually rich brownish, black or quite black; skull large, much constricted interorbitally ; last upper molar large. Length about 1065 mm. (42 inches); tail vertebrae 350 (14); hind foot 115 (4.50). Type locality, Lake Kichelos, Kittitass County, Washington. Pacific Fishers are found in the Pacific coast region from northern California to Alaska. In California they are limited to the high Sierras and the cool forest region north of San Fran- cisco. They prefer damp or swampy forests, but these are rare in California. The food is mice, chipmunks, squirrels, birds, hares and porcupines. Like most other carnivorous mammals, Fishers will eat fish when found dead on the shore, but they are not fisher- men as implied by the name, which was founded on a mistake. They are very good climbers and procure part of their food in trees, where they catch squirrels and birds. They are princi- pally nocturnal in habit. The fur in season is valuable. Two to four young constitute a litter. The Fisher is also called Pen- nants Marten, Pekan and Black Fox, but the first name, although inappropriate, has become too firmly established to be changed. Mustela caurina Merriam. (Northwestern. ) PACIFIC PINE MARTEN. Orange brown, tawny or blackish; head lighter, feet darker; irregular markings of throat and lower parts orange red; tail bushy toward the tip. Length about 660 mm. (26 inches) ; tail vertebrae 200 (8); hind foot 100 (4). The female averages smaller. Type locality, Grays Harbor, Washington. MUSTELIDA 245 Pacific Martens are found along the coast from San Fran- cisco northward to Puget Sound. Martens, probably of this spe- cies, are found in the Sierra Nevada. Martens frequent thick forests and subsist on mice, squirrels, birds, eggs and insects. They climb trees readily. Their habits in general are similar to those of Fishers, except that they prefer dry forests. Genus Lutreola WacneEr. (Little Otter.) Body slender, neck long; legs short; tail about half as long as head and body; toes partly webbed; anal glands moderately developed; skull narrow and flat; upper sectorial tooth well de- veloped; lower sectorial tooth of moderate size, without internal cusps; audital bulle large; palate extending about one-third of the way from last molar to audital bulla; occipital crest usually small.. Dental formula, I, 3—3; C, 1—1; P, 3—3; M, 1—2, K2=34. Lutreola vision energuemnos Bancs. (A scout; pos- sessed by an evil spirit.) PACIFIC MINK. Dark vandyke brown, or dark chestnut; a few irregular white spots about the chin, throat or belly; tail backening toward the tip; skull large; braincase broad and flat; teeth small; palate comparatively flat; mammiee six. Length about 560 mm. (22 inches); tail vertebre 195 (7.75); hind foot 70 (2.75); ear from crown Io (.40). Type locality, Sumas, British Columbia. Pacific Minks are found from central California to British Columbia. In California they are nowhere common, but they occur in the central and northern part of the State, principally in mountainous parts. They appear to be lacking altogether in the southern part of the State. I saw. the skin of one, taken near Ukiah, Mendocino County, and I caught a suckling female 246 CALIFORNIA MAMMALS. July 3rd near the southwestern corner of Lassen County. Four to six young are born in April and May; perhaps as late as June. Minks are seldom found far from streams, as most of their hunt- ing is done about water. They are fine swimmers, but poor climbers. Their food includes such birds and mammals as are ordinarily eaten by members of this family and also fish, frogs and other aquatic forms of life. Genus Putorius Friscu. (Stinking. ) Body very slender, neck long; legs very short; tail of mod- erate length, with rather short hairs; toes cleft; size small; anal glands moderately developed; skull flat and very marrow; upper sectorial teeth well developed, lower sectorial teeth rather small; without internal cusps; auditory bulle large, palate extending nearly half way from last molar to auditory bulla; occipital crest moderately developed; saggital crest small. Dental formula, I, 3—3; C, 1—1; P, 3—3; M, 1—2, X2==34. Putorius xanthogenys Gray. ( Yellow—under jaw.) CALIFORNIA WEASEL. Above cinnamon or tawny olive, tinged with yellow in sum-~- mer, and with drab in winter; terminal fourth of tail black; throat, belly, inner side of legs and toes buff or ochraceous, the toes sometimes whitish; upper and lower lips, chin, sides of the head in front of and below the ears, and a large squarish spot on the forehead white, sometimes tinged with ochraceous, more often on the female; a small brown spot behind the corner of the mouth; remainder of face and top of the head varying from broccoli brown to dark sepia, darkest in winter. Length about 420 mm. (16.50 inches) ; tail vertebree 165 (6.50) ; hind foot 45 (1.80); ear from crown 13 (.50). Female averaging smaller. Type locality, southern California, probably San Diego. MUSTELIDA 247 California Weasels are generally distributed over the valleys and lower mountains of southern California, but are common in few localities. They prey principally on mice, gophers and ground squirrels, but also eat many other species of mammals and birds. These Weasels readily enter the larger gopher burrows. It is seldom that California Weasels destroy: poultry, and they should not be killed unless it is known that the individual is guilty of harmful acts, as they are highly beneficial in killing gophers and other harmful animals. Their bad reputation is partly due to the ill repute of Weasels in general, and partly to the fact that poultry killed by spotted skunks is often charged to the Weasels. A female that I caught April 18th contained six foetuses ; mammee four pairs. Putorius xanthogenys mundus Bancs. (Neat.) REDWOODS WEASEL. Similar to ranthogenys, but smaller and darker. Type locality, Point Reyes, Marin County, California. Coast region of northern California. Apparently rare; at least very few specimens have been preserved. Putorius arizonensis Mearns. (Of Arizona.) MOUNTAIN WEASEL. Above raw umber or bistre darker on the head; terminal fourth of tail black ; lower parts buff or ochraceous, including the fore feet, inner side of fore and hind legs, and more or less of the front part of the hind toes; chin and lips white. Length about 380 mm. (15 inches); tail vertebre 140 (5.50) ; hind foot 43 (1.70). Female smaller. Mountain Weasels are found in the Sierra Nevada and Rocky Mountains. I do not know of their occurrence in south- ern or western California. I shot one at Goose Lake one fore- noon as it was hunting among rocks at the base of a cliff. 248 CALIFORNIA MAMMALS. Putorius muricus Bancs. (Of the mice.) LITTLE WEASEL. Very small; above drab brown tinged with reddish or choco- late; tail with black tip; upper lip, under parts and feet white; skull with inflated squamosals. Length about 220 mm. (8.65 inches); tail vertebre 60 (2.40) ; hind foot 31 (1.20). Type locality, Echo, Eldorado County, California. SGRECIDA 249 Order Insectivora. (Shrews and Moles.) Teeth encased in enamel; upper canine, and, usually lower one, present; permanent teeth rooted; lower jaw with transverse condyles received in special sockets; limbs adapted for walking, ulna and radius partly or wholly separated ; metacarpal bones and phalanges of normal length; toes usually five on each foot; first and second digits not opposable; feet plantigrade or subplanti- grade; placenta discoidal and deciduate. Family Sorecidee. (Shrews.) Skull long and narrow, zygomatic arches and postorbital pro- cesses wanting; the two middle incisors of upper jaw large, curved, with a spur-like cusp at their base; lower middle incisors large and projecting forward nearly horizontally; tibia and fibula united; limbs of moderate length; feet of moderate size; the hind feet usually largest; nose elongated, tapering; eyes mod- erately developed; external ears present; size small or very small. This family contains about one hundred and thirty species divided among ten genera. Individuals are most numerous in Eurasia. Shrews live in cold or temperate climates in the north- ern hemisphere. They are carnivorous, much of their food be- being insects, but mice and other small animals are caught and eaten. Shrews are very ferocious animals, being able to conquer and kill mice very much larger than themselves. ‘They are noc- turnal, principally terrestrial, occasionally semi-aquatic, rarely subterranean. Seasonal changes in pelage occur in many species. Genus Sorex Linn. (Shrew.) Ears small; tail more than half as long as head and body. Dental formula, I, 4—2; C, 1—o; P, 2—1; M, 3—3, 2X 2=32. The species of Sorex are difficult to determine. They are very small, often similar in color, with some seasonal changes of color. Some species can be distinguished with certainty only 250 CALIFORNIA MAMMALS. by the microscopic examination of the teeth, and to add to the difficulty these change their shape with wear. Sorex vagrans Bairp. (Wandering.) WANDERING SHREW. Above dark brown, varying to almost russet; below ashy; tail dusky above, pale below; third upper unicuspid tooth smaller than fourth, fifth smaller than third. Type locality, Shoalwater Bay, Washington. Wandering Shrews are found from British Columbia south to the northern or probably to the central Sierra Nevada, and along the coast to San Diego. They are found in the Transi- tion and lower part of the Boreal Zones. They are rare along the southern coast, but do occur in the salt marshes around tide- water bays. Three Shrews caught on Lytle Creek, San Gabriel Mountains, San Bernardino County, seem to be Wandering Shrews, but they are very light colored, grayish sepia or hair brown. I caught them all in July; therefore they must be in summer pelage. They were caught in mice traps set in meadow mice runways, in grass among willows in a cool springy place, alt. 3200 feet. Sorex amoenus Merriam. (Attractive. ) SIERRA NEVADA SHREW. Similar to vagrans; tail shorter; above dark sepia or dusky; sides paler with a gray tinge; below grayish white or buffy white; tail dark brown or dusky above, whitish below; skull and teeth similar to vagrans. Length about ro2 mm. (4 inches) ; tail vertebra 38 (1.50) ; hind foot 12.30 (.50). Type locality, Mammoth Pass, head of Owen River, Cali- fornia. Higher parts of the Sierra Nevada. They frequent wet SORECID& 251 grassy places bordering small streams. A female caught July 22nd, contained nine foetuses. Sorex obscurus Merriam. (Dusky.) DUSKY SHREW. Similar to vagrans; larger; tail longer; ears smaller; molar teeth larger. Stsiner pelage; above dull dark sepia brown; be- low brownish ashy; tail dusky above, paler below. Waunter pelage; ash gray above; whitish below. Length about 110 mm. (4.33 inches); tail vertebrae 48 (1.90) ; hind foot 13 (.51). Type locality, Salmon River Mountains, fae. Dusky Shrews are found from Mount Whitney north to British Columbia and east to Colorado and Montana. They are restricted to the Boreal Zone. They are generally distributed through the higher Sierra Nevada, but have not been reported from any other part of the State. They inhabit mountain meadows and the grassy banks of streams. They often follow the runs of meadow mice and traps set in these runs sometimes catch Dusky Shrews. They sometimes eat the mice caught in traps set in the runs, and it is probable that they follow the runs partly in pursuit of mice, and partly because these runs are good hunting grounds for insects. Dusky Shrews are quite similar to Wandering Shrews in color, but they are larger, with longer skull and the molariform teeth are larger. Sorex montereyensis Merriam. (Of Monterey.) MONTEREY SHREW. Summer pelage; above seal brown with a few long gray- tipped hairs intermixed; below light sepia; tail bicolor, sepia above, dull white below. Winter pelage; above slate black; be- low dull plumbeous brown. Length about 120 mm. (4.75 inches; tail vertebree 51 (2); hind foot 14.5 (.57). 252 CALIFORNIA MAMMALS. Type locality, Monterey, California. Monterey Shrews are found in the coast region from San Luis Obispo to Oregon, and on the west slope of the Sierra Ne- vada. They probably frequent damp forests. I caught one in the redwoods in Mendocino County in a meat-baited trap set at the end of a log, where a mouse in a trap had ‘been partly eaten the previous night. Monterey Shrew. Nearly life size. Sorex ornatus Merriam. (Adorned.) ADORNED SHREW. Summer pelage; above ash gray; below whitish; this color spreading well up the sides; tail dark, paler at the base below. Winter pelage; a patch of darker hairs on the hips and: rump. Length about 105 mm. (4.15 inches); tail vertebre 43 (1.70); hind foot 12.5 (.50). Type locality, Mount Pinos, Ventura County, California. The Adorned Shrew is known only from the mountains of southern California, and is apparently rare. I found two dead near Santa Ysabel, San Diego County, apparently having been caught by a cat and dropped. Cats will not eat shrews or moles because of their disagreeable odor. Sorex californicus MrrriAM. CALIFORNIA SHREW. Small; ears conspicuous; skull small and flat; above ash gray with a decided “pepper and salt” appearance; below plumbeous tipped with whitish. SORECIDA 253 Length about 93 mm. (3.66 inches); tail vertebra 35 (1.37); hind foot 11.5 (.45). Type locality, Walnut Creek, Contra Costa County, Cali- fornia. Known only from the region around San Francisco Bay, and apparently rare. Sorex tenellus Merriam. INYO SHREW. Small; skull flat and narrow; above ash gray; under parts and feet white; tail dark above, white below. Length of type specimen 103 mm. 4.05 inches) ; tail verte- bre 42 (1.65); hind foot 12.5 (.49). Type locality, Alabama Hills near Lone Pine, Inyo County, California. Known only from the type locality. Sorex tenellus lyelli Merriam. MOUNT LYELL SHREW. Similar to tenellus in size, cranial characters, and general ap- pearance; but upper parts slightly browner; tail darker; rostrum and brain case not quite so flat; third unicuspid tooth larger than the fourth. Type locality, Mount Lyell, Tuolumne County, California. Known only from the type locality. Sorex tenellus myops MrErriAm. WHITE MOUNTAIN SHREW. Similar to tenellus, but slightly smaller; paler; ears larger ; skull shorter and broader. Type locality, White Mountains, Mono County, California. Known only from the type locality. 254 CALIFORNIA MAMMALS. Sorex pacificus Barro. PACIFIC SHREW. Large; hind feet large; ears large. Simmer pelage; uni- form cinnamon rufous above and below. Winter pelagc; every- where darker, the hairs of the upper parts dark tipped. Length about 150 mm. (5.90 inches); tail vertebre 63 (2.50) ; hind foot 17 (.67). Type locality, mouth of Umpqua River, Oregon. Found along the coast of Oregon and south to Point Reyes, California. Sorex palustris navigator Barrp. (Of the marsh; one who navigates. ) WATER SHREW. Very large for a shrew; ears not conspicuous; feet with a wide fringe of stiff hairs; above slate black, some of the hairs with a short white tip producing’ a slightly frosted appearance; below pale brownish gray, palest on the throat and darkest on the chest ; tail blackish above, dull white below except near the tip. Length of Sierra Nevada specimens about 160 mm. (6.30 inches) ; tail vertebrz 76 (3) ; hind foot 20 (.80). Female rather smaller. Rocky Mountain specimens average smaller than those from the Sierra Nevada. The type probably came from northern Idaho. Water Shrews are found in the Rocky Mountains, in the in- terior ranges east of the Cascade Mountains from British Colum- bia to Utah, and in the Sierra Nevada, principally on the eastern side. They frequent the swifter mountain streams. They are strong swimmers and excellent divers, swimming under water considerable distances in the pools. They evidently obtain some of their food in the water, but I am unable to say what it is. They enter meat-baited traps. They are not very common. SORECIDA 255 Sorex bendirei Mrrrtam. (For Major Charles E. Bendire. ) BENDIRE SHREW. Large; feet with a narrow fringe of stiff hairs; ears not con spicuous; above dull sooty plumbeous; faintly paler below; tail dusky all around. Differs from navigator in tail being unicolor, in lower parts not being distinctly paler, and in somewhat smaller size. Length about 150 mm. (6.15 inches); tail vertebre 70 (2.75); hind foot 20 (.80). , Type locality, near Fort Klamath, Oiregon. Bendire Shrews occur in the Cascade Mountains from Fort Klamath to British Columbia, and along the Pacific coast from Mendocino County northward. They may occur in the moun- tains in the northeastern part of the State also. Genus Notiosorex Bairp. (Southwestern—shrew. ) 28 teeth; external ear conspicuous; tail about one-third the total length. Dental formula, I, 3—2; C, 1—o; P, 1—1; M, 3—3, X2=28. Notiosorex crawfordi Barro. GRAY SHREW. Above drab gray; below olive gray; tail similar. Length about 90 mm. (3.50 inches); tail vertebre 31 (1.22); hind foot 11 (.43); ear from crown 6.4 (.25). Type locality, old Fort Bliss, near El Paso, Texas. Gray Shrews seem to be rare. They are found in north- eastern Mexico, in southern Lower California, in Texas and in southern California. I know of but about a dozen California ex- amples; all were taken in dry valleys except one, which I found dead in my stable near Santa Ysabel, San Diego County, where the altitude is about 2750 feet. T'wo were caught near San Ber- nardino in fruit cans set in the ground flush with the surface. A female caught in San Diego April 8, 1906, contained three half grown foetuses. There were three pairs of mamme, all located near the groins. 256 CALIFORNIA MAMMALS. Family Talpidee. (Moles.) Front foot large, lateral, broad, with strong claws; hind feet normal; limbs short; no external ear; eyes minute or rudi- mentary; muzzle lengthened; body stout with no distinct neck; pelage velvety; front incisors not directed forward horizontally ; zyomatic arch present. This is a moderate sized family of about a dozen genera, generally distributed over the north temperate zone. They are carnivorous, feeding mostly on insect life obtained in burrowing through the soil. There are no obvious changes of pelage with age, sex or season. Genus Scapanus Pome. (A digging tool.) Body spindle shaped, flattened; eyes minute, concealed in the fur but not covered by a membrane; front feet very large and broad; tail short, scantily haired, constricted at base; skull flat- tened; palate slightly prolonged behind last molars; first pair of upper incisors very large. Dental formula, I, 3—3; C, I—1: P. 4—4; M, 3 3X 244. Scapanus townsendi BacuMan. (For J. K. Townsend. ) TOWNSEND MOLE. Very large; blackish above and below; upper unicuspid teeth separated by equal intervals; first lower incisors not much smaller than the next pair. Length about 185 mm. (7.30 inches); tail vertebre 40 (1.60) ; hind foot 25 (1). Type locality, near Vancouver, Washington, The Townsend Mole inhabits the region in Washington and Oregon between the Cascade Mountains and the coast range, and southwest to Crescent City, California, where specimens have been taken. TALPIDA 257 Scapanus californicus Ayers. CALIFORNIA MOLE. Size medium; grayish brown or light sooty brown glossed with silvery; upper unicuspidate teeth crowded and unequal in size; first pair of lower incisors very small, the next pair large. Length about 175 mm. (5.90 inches); tail vertebre 35 (1.40) ; hind foot 21 (.83). Type locality, San Francisco, California. California Mole. About two-thirds life size. Central and northern California. They have not been re- ported from the San Joaquin and Sacramento Valleys and are probably rare there. I have seen Mole runs in nearly all the mountain ranges of California, up to 5,000 feet altitude and higher. In some parts of the mountains where the soil is of good depth and loose the runs are numerous. Scapanus californicus anthonyi ALLEN. (For A. W. Anthony. ) ANTHONY MOLE. Similar to californicus, smaller and darker. Brownish slate black with silvery reflections. Length of San Diego County specimens about 155 mm. (6.10 inches) ; tail vertebrze 34 (1.33) ; hind foot 20 (.78) ; front foot 21 long by 16 wide (.85x63). Female smaller. Type locality, San Pedro Martir Mountains, Lower Califor- nia. 258 CALIFORNIA MAMMAIS. Anthony Moles are found in the mountains of northern Lower California and in the mountains and valleys of southern California west of the Deserts. They are rare in the valleys near the coast, but are more common in the foothills and mountains, though nowhere abundant. Moles are carnivorous. No vegetable food is eaten, the popular supposition to the contrary being erroneous. The prin- cipal food is grubs and other larvee, insects and earthworms. They probably do not hunt for larger prey, such as mice, but a chance meeting of a mole and a mouse in a burrow would probably result in disaster to the mouse and a full meal for the mole. Mice do occasionally use mole runs for I caught a meadow mouse in a trap set ina molerun. The food is found by scent, this sense be- ing well developed. Our moles have no visible ears, but there is a small concealed external opening. The eyes are very rudimene- tary, but are not completely overgrown with skin as is the case with some other species. The gait on the ground is very awkward, the fore feet being twisted so far outward that the Mole must walk on the thumb and edge of the foot. Our species are entirely subterranean in habit. I have never known of an instance of their coming voluntarily on the surface. Unlike various eastern and European species our Moles do not throw up mounds or “mole hills’ om the surface. Their runs or burrows are often so near the surface that a nar- row ridge is raised by their passage. The runs are made by the animal pressing the soil aside as it forces its way along. I captured a Mole alive and placed it in a box containing some loose soil. Its nose appeared to play an important part in burrowing. The very pliant nose was pushed in the soil and pressed to one side and the other forcing the soil aside a short distance. Into this opening the fore foot was pushed, palm outward, alongside the nose, and the foot swung outward and around, as a man swings his hand in swimming. I thought the fore feet were used alternately, but in hard soils they would probably be used simultaneously, and in hard soils the claws would probably be forced ahead of the nose to TALPIDA 259 open the way. The action of Moles i burrowing is entirely differ- ent from that of gophers (Thoniomys), being analogous to swim- ming instead of digging. ‘They burrow through loose soil very rapidly. Moles are sometimes troublesome in irrigated gardens through the water following the runs. Occasionally they do a lit- tle damage by breaking the roots of plants as they force their way along the rows of plants searching for grubs, but this damage is usually more than offset by the benefit in destroying injurious insects. They are very hard to trap, a special trap being necessary. By watching where they are working they can be thrown out with a shovel thrust in behind where the dirt is seen to move, but one must tread lightly, for Moles are shy and their hearing is good, notwithstanding they have no external ear. Scapanus californicus truei Merriam. (For F. W. True. ) MODOC MOLE. Similar to californicus but paler, clear plumbeous; rostrum more slender; last upper premolar with a distinct inner cusp. Length of type specimen 170 mm. (6.70) inches) ; tail ver- tebre 34 (1.33); hind foot 21 (.83). Type locality, Lake City, Modoc County, California. Genus Neurotrichus GuNTHER. (New—tail—hair. ) Body spindle shaped; eyes small, concealed in fur, not cov- ered by a membrane; front feet moderately broad; tail about half as long as head and body, thinly haired, constricted at base; skull flattened ; palate ending even with last molars; first pair of upper incisors moderately large. Dental formula, I, 3—3; C, 1—1; P, 2—2; M, 3—3X=36. 260 CALIFORNIA MAMMALS. Neurotrichus gibbsi major Merriam. (For George Gibbs; large.) LARGE SHREW MOLE. Dark sooty brown with purple and silvery reflections. Length about 120 mm. (4.75 inches); tail vertebre 4o (1.57); hind foot 17 (.67). Type locality, Carberry Ranch, Shasta County, California. Northern Sierra Nevada and Mount Shasta above 4,000 feet altitude and the coast region north of San Francisco. Not com- mon. CHIROPTERA 261 Order Chiroptera. (Bats. ) Fore limbs modified for flight by the elongation of the fore- arm and fingers; fore and hind limbs connected by a membraneous expansion of the skin, this frequently including the tail; humerus and femur extending beyond the body; bones of the forearm united; ulna reduced to a rudiment; hind limbs so far rotated that the knee bends outward and backward; a cartilagineous calear on the inner side of the ankle of the hind foot supporting a part ot the interfemoral membrane; teeth enveloped in enamel and con- sisting of incisors, canines, premolars and molars. The highly specialized order of Bats is widely distributed over the globe excepting in the polar regions. The order con- sists of two suborders and six families. One suborder (Mega- chiroptera) does not occur on this continent. Its members feed _ principally on fruit. Some species are very large, such as the so- called Flying Foxes, some of which are as large a as large hawk, while other species are quite small. The wings of Bats consist of a web-like expansion of the skin from the upper and lower surfaces of the body, these two layers being thin, coherent and expanded by a framework con- sisting of the greatly lengthened bones of the fingers and arms and the more or less lengthened and exserted legs; the membrane be- ing continued from the end of the inner finger to the foot ot the hind leg and usually to the tail. The flight of a bat is not as graceful as that of a bird, but it is nearly as rapid and more com- pletely under control in making rapid turns. They are as awk- ward in walking on the ground or other surfaces as they are dex- trous on the wing. The eyes of bats are small and of less service than most other of their senses. The organs of smell are well developed. The sense of touch or feeling is highly developed, especially in the wing membranes and nasal appendages of the “Jeaf-nosed”’ species. The hearing is very acute and is probably the most use- ful sense in locating their insect prey. Bats are crepuscular and nocturnal, rarely going abroad in 262 CALIFORNIA MAMMALS. daylight. Some species spend the day in narrow crevices, into which they crawl, sometimes in large numbers; other species hang from the rcof of caves, often in masses; yet others hang in trees from twigs among the foliage. Very little is known about the migrations of bats, but there are very good reasons for believing that many species migrate in a method similar to that of birds. Probably few species occuring in cool climates remain there in winter. The number of voung at a birth is commonly one or two; rarely three, so far as is known. With certain species one young may be the rule, with many two is the usual number. Most have but one pair of mammze, but others, as Lasiurus, have two pairs. It is probable that some species rear two sets of young annually. Many species are gregarious, but usually the two sexes do not intermingle. Suborder Microchiroptera. Insectivorous bats of medium or small size; molars with crowns acutely cuspid. Family Vespertilionide. Upper incisors small, with a vacant space in their middle; molars with conspicuous W-shaped cusps; turbinal bones folded; tail included nearly to tip in the interfemoral membrane: ears medium or large, usually well separated; tragus well developed; no distinct nose leaf; hairs surrounded with minute imbricated scales. This family of Bats contains seventeen genera and one hun- dred and fifty or more species, most common in temperate cli- mates. ‘The sexes are alike. The young differ but little from the adult. There are no seasonal changes of pelage. VESPERTILIONID At 263 Genus Antrozous ALLEN. (Cave—animal.) Ears not joined at base; muzzle blunt; lower lip free. Dental formula, I, 1—2; C, 1—1; P, 1—2; M, 3—3X 2=28. Antrozous pallidus Lecon’rr. (Pallid.) PALE BAT. Size large; ears large; tragus slender, nearly straight, a little less than half as high as the ear conch; interfemoial membrane of moderate size; wings broad; back pale drab gray, most of the hairs with faintly dusky tips; below grayish white, tinged with drab on the sides. Length about 110 mm. (4.33 inches) ; tail vertebrze 40 (1.60) ; ear from crown 25 (I). Type locality, El Paso, Texas. The pale Bat is found from western T'exas through the arid region of the Sierra Nevada and San Bernardino Mountains. They do not seem to be common any- where. Pale Bat. Antrozous pallidus pacificus Merriam. PACIFIC PALE BAT. Averaging larger than pallidus; darker; above brownish white more or less heavily tipped with sepia or drab, a patch on the back of the neck and sometimes one on the rump with little or no dark tips to the hairs; below buff or brownish buff. Type locality, old Fort Tejon, California. Pacific Pale Bats appear to be generally distributed along the Pacific coast west of the Cascade Mountains and Sierra Ne- vada from the Columbia River south to Cape St. Lucas, in the valleys, foothills, and lower mountains. They do not appear to be common. The young are horn about the first of Ju 264 CALIFORNIA MAMMALS. Genus Euderma ALLEN. (Beautiful—skin. ) Ears enormous, joined together at their bases by a low mem- brane across the crown; tragus joined to external lobe of ear; tip of ear rounded; face without evident glandular swellings. Dental formula, I, 2—3; C, 1—1; P, 2—2; M, 3—3X2=34. Euderma maculatum ]. A. ALLEN. (Spotted.) SPOTTED BAT. First upper premolar minute; ears marked with numerous transverse lines; nose without a leaf or other excrescence; face thinly haired; color peculiar in being distinctly spotted; base ot ears and upper sides of neck whitish; a spot on each shoulder and one on the rump white at tips and black at base of hairs; re- mainder of fur on back dark sepia; fur of under part of body black at base and white at tips. Length about 110 mm. (4.33 inches) ; tail vertebrae 50 (2): ear from crown 43 (1.70). Type locality, Castac Creek, Los Angeles Cuunty, Califor- nia. But three specimens are known of this peculiar species. The type was found hanging on a fence; the second specimen was found dead in the Biological Laboratory of the New Mexico Col- lege of Agriculture at Messilla Park, New Mexico; and Herbert Brown reports the capture of another at Yuma, Arizona. Genus Corynorhinus ALLEN. (Club—nose.) Ears very large, thin, joined together over the crown, the back half of the ear with numerous transverse lines; tragus slen- der, straight, notched and lobed near the bottom, about two fifths as long as the ear; an upright glandular mass each side of the face between the nostril and the eye; interfemoral membrane large. VESPERTILIONID& 265 Corynorhinus macrotis pallescens M1iiEr. (Very pale.) LUMP-NOSED BAT. Above yellowish sepia, the bases of the hairs tingled with pint beous; below yellowish drab or pale drab; ears and membranes light brown. Length about 98mm. (3.85 in- ches) ; tail vertebrae 48 (1.90); ear from crown 30 (1.20); expanse of wings 285 (11.25). Type locality, Keam Canyon, Na- eee vajo County, Arizona. Lump-hosa Bat. Lump-nosed Bats are found in the deserts, valleys and foothills of California and eastward to Colorado and ‘Texas. They are common. They are summer residents in this State, but prob- ably a few winter in warm localities. I have a specimen taken at San Diego in March. Another taken April 25th, contained one fcetus. They are on the wing before the twilight is gone. They appear to inhabit caves. Genus Myotis Kaup.. (Mouse—ear. ) Face hairy; muzzle and nostrils simple; ears not connected at base; interfemoral membrane ample. Dental formula, I, 2—3; C, 1—1; P, 3—3; M, 33 X2=38. Myotis lucifugus longicrus Trur. (Light—fugitive; long—shank. ) LONG-SHANKED BAT. Above varying from sepia to yellowish black; below varying from pale hair brown to sepia; membranes dusky or blackish; ears rather small, broad, upper part of back edge concave; no fringe ot hairs on border of interfemoral membrane; tibia proportionally long. Length about 97 mm. (3.80 inches); tail vertebre 42 266 CALIFORNIA MAMMALS. (1.65) ; ear from crown 14 (.55); expanse of wings 275(10.80). Type locality, Puget Sound. Long-shanked Bats range over much of the western United States, but are common in few places. In some parts of their range they inhabit mountains, but most of the recorded specimens were taken in valleys. Myotis californicus Aupuzon and BACHMAN. LITTLE CALIFORNIA BAT. Size small; feet small; ears small, reaching just beyond tip of nose when laid forward; back edge of ears concave; no fringe of hairs on border of interfemoral membrane; colur above reddish sepia or drab, below a paler shade of the same color; fur every- where blackish at base; membranes dull brown or dusky. Length about 82 mm. (3.25 inches) ; tail vertebree 40 (1.60) ; ear from crown 13 (.50); expanse of wings 230 (9). California Bats range in the valleys, foothills and lower mountains of the coast region of the western United States and in Lower California. They are common in the valleys of Cali- fornia in the autumnal migration and are present in smaller num- bers all summer. ‘They hide in the daytime in crevices in rocks, behind loosened boards in barns and other buildings and in other dark crannies, coming out in early twilight. Myotis californicus pallidus Srerrpns. PALLID BAT. Averaging smaller than californicus; paler; above buff or brownish buff; below dull white; all pelage dusky at base. Length about 80 mm. (3.15 inches) ; tail vertebrae 40 (1.60) ; ear from crown Ir (43); expanse of wings 210 (8.25). Type locality, Vallecito, San Diego County, California. Pallid Bats are found in summer in the Colorado and Mo- jave Deserts and in the arid mountains around them. A female taken April 29th, contained one small foetus. A few Tats winter VESPERTILIONIDA 267 in the Colorado Desert; these appear to be intermediate between pallidus and californicus. Myotis yumanensis Arien. (Of Yuma.) YUMA BAT. Similar to californicus; lighter color; body larger ; tail short- er; hind foot much larger; skull broader. Type locality, old Fort Yuma, California. Yutna Bats are found in the southwestern United States and northwestern Mexico. They appear to be most common in the San Joaquin Valley. Myotis yumanensis saturatus Minter. (Full of color.) MILLER BAT. Similar to yumanensis; darker colored’; smaller; back dark glossy yellowish brown; belly isabella color; fur nearly black at base. Type locality, Hamilton, Washington. Miller Bats are found in British Columbia, Washington, Oregon and northern California. Dr. Merriam reports them com mon high on Mount Shasta in August. Myotis evotis ALLEN. (Good—ear.) LONG-EARED BAT. Ear very long for this genus, narrow; size rather large; no fringe of hairs on the border of the interfemoral membrane; wing's rather narrow; above wood brown or isabella brown; below pale drab; fur everywhere blackish at base; wings and ears dark brown. Length about 90 mm. (3.55 inches) ; tail vertebrae 41 (1.60) ; ear from crown 21 (.82) ; expanse of wings 240 (9.50). Type locality, Monterey, California (Miller). Long-eared Bats are found in the western United States 268 CALIFORNIA MAMMALS. and Mexico. They are not abundant. In southern California 1 have seen this species most frequently in the spring and fall mi- grations. They are abroad in twilight. They frequent both mountain and valley. Myotis thysanodes Minier. (Fringe—like.) FRINGED BAT. Size medium; border of interfemoral membrane thickened from end of calcar to tip of tail and distinctly fringed with hairs; ears rather long, reaching three to five millimerers beyond the nostrils when laid forward; feet rather large; above dull yellow- ish brown; below a paler shade of the same color; fur every- where blackish at base. Length about 90 mm. (3.55 inches) ; tail vertebre 37 (1.45); ear from crown 17 (.67). Type locality, old Fort Tejon, California. Fringed Bats are known only from southern California and northwestern Mexico. They appear to be common in the type locality, where Dr. Merriam and Dr. Palmer found them hang- ing in clusters from the rafters in the attic of an old building forming part of the abandoned quarters of the old Post, in com- pany with Yuma Bats. Young of various ages were found with the adults July 5th, 1991. Genus Lasionycteris Perers. (Hairy—bat.) Skull flat; rostrum broad; face mostly bare and glandular ; ears low, broad, widely separated; tragus short, broad, straight in front, convex behind; basal half of interfemoral membrane furred on the upper side. Dental formula, I, 2—3; C, 1—1; P, 2—3; M, 3— 3, X2=36. Lasionycteris noctivagans Lu Contr. (Night—wan- dering. ) SILVERY-HAIRED BAT. Above and below blackish chocalate brown tipped with sil- very white. VESPERTILIONIDA 269 Length about 100 mm. (3.95 inches); tail vertebre 40 (1.60) ; ear from crown 15 (.60). Type locality, eastern United States. Silvery-haired bats are common in the eastern United States, but appear to be rare west of the Rocky Mountains. I have seen no Californian examples and know of but eight having been taken in the State. In the eastern States this species frequents the vicinity of streams and the borders of hardwood forests. Genus Pipistrellus Kaup. (A bat.) Size small; skull small and lightly built ; ears longer than broad, tapering to a narrow rounded tip; tragus straight or curved for- ward; basal fourth of interfemoral membrane thinly haired on the upper side. Dental formula, I, 2—3; C, 1—1; P, 2—2; M, 3-3 X2=34. Pipistrellus hesperus ALLEN. (Western. ) WESTERN BAT. Smallest California species of bat; ear short, barely reaching wostril when laid forward; ears widely separated; tragus rather short, very blunt and bent forward; feet small; interfemoral membrane of moderate size, sparsely haired on the upper surface near the body, the border not fringed; face and ears bare, black; color of pelage pale; above very pale drab; below brownish white ; all the fur blackish at base; wings dull black. Length about 72 mm. (2.85 inches) ; tail vertebra 30 (1.20) ; ear from crown Io (.40); expanse of wings 200 (7.90). Type locality, old Fort Yuma, California. Western Bats range from southern and eastern California east to Colorado and Texas. They are a desert loving species and are not common in the coast region of southwestern California. Very few remain in California in winter. The northward migra- Western Bat. 270 CALIFORNIA MAMMALS. tion is at its height about the end of March, at which time they are very abundant about certain springs along the western border of the Colorado Desert, appearing early in the evening, some- times soon after sunset. By the middle of April they are much less abundant about these springs. Their flight is swift and erra- tic and they are hard to shoot. ‘They probably hide in crevices in rocks on hillsides during the daytime. I found two fcetuses in a female shot May 18th. Genus Eptesicus Rarinesoue. (House flier.) Skull large and heavily built; size rather large; ears rather short and narrow; tragus rather short, narrow, pointed; wing and tail membranes naked; wings large. Dental formula, I, 2—3; C, r—1; P, 1—2; M, 3—3X2=32. Eptesicus fuscus bernardinus Ruoaps. (Brown; of San Bernardino. ) SAN BERNARDINO BAT. Above wood brown or isabella brown; below paler; skull flat; rostrum very broad. Length about 110 mm. (4.33 inches); tail vertebrae 46 (1.80) ; ear from crown 14 (.55) ; expanse of wings 330 (13). Type locality, San Bernardino, California. Southern California, principally in the mountains. Rather common in summer in the pine region. Eptesicus fuscus melanopterus Reny. ( Black SIERRA BAT. wing. ) Similar to bernardinus but darker; above dark cinnamon; be- low reddish wood brown; face and membranes black. Type locality, Mt. Tallac, Sierra Nevada, California. The range of the Sierra Bats has not been worked out, but it is probably all the forested region of central and northern Cali- VESPERTILIONID AZ 271 , fornia and perhaps all the west coast region north of California also, Genus Lasiurus Gray. (Hairy—tail.) Skull very short, broad, high; but one pair of upper incisors, divided by a wide space; first upper premolar minute, crowded out -on the tongue side of the canine; upper side of the interfemoral membrane furred to the edge; ears broad, low, more or less furred; tragus rather short, curved; mamme four. Dental formula, I, 1—3; C, I—1; P, 2—2; M, 3-3 X2—=32. Lasiurus borealis teliotis ALLEN. (Northern; perfect— ear. ) WESTERN RED BAT. Ears low, broad, the side toward the crown thickly furred, the outer side with a few scattered hairs; tragus short, pointed, wide, strongly curved; wings furred next the body on both sides and on the under side a thin strip of fur one fourth the width of the wing extends to the wrist; under side of interfemoral mem- brane bare except near the base, upper side middle half of hairs buffy or pale yellowish, tips a reddish shade varying from tawny or cinnamon to ochraceous buff, sometimes thinly frosted with white; below pale ochraceous or yellow- ish; fur of upper side of interfemoral membrane mostly reddish throughout. Western Red Bat. Length about 110 mm. (4.33 inches); tail vertebree 50 (1.95) ; ear from crown 6 (.23); expanse of wings 315 (12.40). Type locality, California. Western Red Bats are found in the valleys and foothills ot central and southern California and Lower California. All that I have seen were found in spring and summer hanging among the foliage of fruit trees in orchards. They appear to be rare. 272 CALIFORNIA MAMMALS. Lasiurus cinereus Brauvois. (Ashy.) HOARY BAT. Large; ears mostly furred on both sides; a spot of fur on the upper side of wing near elbow and one or two at wrist; a strip of fur on the under side from elbow to wrist; upper side of inter- femoral membrance thickly furred; under side bare except near body ; upper pelage blackish at base, the middle of the hairs pale yellowish brown becoming umber brown on the interfemoral mem- brane, tips distinctly hoary white with a narrow chocolate sub- terminal zone; head mostly ochraceous; breast and much of the belly similar to the back; remainder of lower parts, including throat, grayish buff. Length about 135 mm. (5.30 inches); tail vertebree 57 (2.25); ear from crown 13 (.50) ; expanse of wings 400 (16). Type locality, Philadelphia, Pennsylvania. Hoary Bats are found in most parts of North America. In summer they mostly frequent mountains or cool hilly regions. Several have been found hanging in the thick foliage of orange trees in southern California in winter. I found them in May in the redwoods of Mendocino County. Their fight is swift, with frequent abrupt turns. They do not appear until the light e- comes very dim. MOLOSSID 45 273 Family Molosside. Upper incisors large, separated by a vacant space in the mid- dle in some species, not separate in others; molars with distinct W-shaped cusps; wings narrow; terminal third or half of tail vertebre free and projecting beyond the narrow. interfemoral membrane; ears medium or large, usually separated at base; tragus more or less developed; no nose leaf; scales on hairs ar- ranged in belts. This family is principally tropical or subtropical in distribu- tion. It contains half a dozen genera and about fifty species. Genus Nyctinomops Miuirr. (Night—habitation—-like. ) Size medium; a space between upper incisors; first upper pre- molar very small; membranes not furred; lips large and thick. Dental formula, I, 1—2 or 1—3; C, 1—1; P, 2—2; M. 3—3 X2==30 or 32. Nyctinomops mohavensis Merriam. (Of Mohave.) MOHAVE BAT. First upper premolar minute; third lower incisor minute, sometimes lacking in adult or aged individuals; front border of RY SS a: gre Mohave Bat. ear with about six wart-like small projections; numerous black spines scattered over the face and chin; lips crimped, forming per- pendicular wrinkles; ears apparently connected at bases, but usu- ally not really united; tragus small; free part of tail about equal 274 CALIFORNIA MAMMALS. to part included in the membrane; wings narrow; color above sooty mouse gray; below smoke gray; membranes dark brown. Length about 98 mm. (3.85 inches) ; tail vertebrze 37 (1.45); ear from crown 13 (.50); expanse of wings 310 (12.20). Type locality, Fort Mohave, Arizona. Mohave Bats have been taken in various parts of Arizona and California. It is probable that they occur over most of the southwestern United States and northwestern Mexico. Stowell found them in large numbers in the courthouse at Santa Clara, California in February. I have taken them on the borders of the Colorado Desert in March and April, and at San Diego in November. I am under the impression that this species migrates, but this is not yet proven to be a fact. Nearly all that I have seen or heard of were taken in valleys, but probably a few get into the lower mountains in summer. They seem to feed mostly on species of insects that fly over water and damp places. They spend the day in crevices of rocks, behind shutters and in cracks of buildings, sometimes in masses. They begin to fly rather early. The flight is erratic but not swift. Nyctinomops femorosaccus Merriam. (Thigh—sack.) POCKETED BAT. Similar to mohavensis; larger; tail more than half exerted; a fold of membrane extends from the inner third of the femur to the middle of the tibia, forming a pocket at the thigh; ears con- nected at the base; color dull brown. Length (type) 103 mm. (4.05 inches); tail vertebrae 41 (1.60) ; free part of tail 23 (.90); ear from crown 14 (.55). Type locality, Agua Caliente (now called Palm Springs), in the northwestern end of the Colorado Desert, California. I shot the type specimen March 27th, 1885, but have not re- cognized more of the species since, and have seen no records of further captures. MOLOSSID.& 275 Nyctinomops depressus Warp. (Depressed.) NEVADA BAT. Size large; two pairs of lower incisors; ears united at their bases; above dull brown; below similar but lighter; males with a small sac in the skin of the throat. Length about 140 mm. ( 5.50 inches); tail vertebre 41 (1.60) ; expanse of wings 410 (16.15). Type locality, Tacubaya, Federal District, Mexico. The Nevada Bat is found in Mexico and the southwestern United States. It must be rare in the United States as the only records that I can find are one each for California, Nevada, Ari- zona and Colorado. It should be readily distinguished by its large size. Genus Promops Gervais (Before—Mops.) Size large; no space in the middle between the upper incis- ors; first upper premolar very small; lips not wrinkled; ears unit- ed at base; membranes not furred. Promops californicus MrErriam. CALIFORNIA MASTIFF BAT. Very large; first upper premolar minute and wedged in the angle between the canine and the second premolar om the outer side of the tooth row; ears broad, projecting a little beyond the nostrils when laid forward; tragus quadrate, higher than broad; a glandular swelling in front of each eye; color sooty brown, paler below, the bases of the hairs everywhere pale drab gray. Length about 162 mm. (6.38 inches); tail vertebree 60 (2.35); free part of tail 13 (.50). Type locality, Alhambra, Los Angeles County, California. California Mastiff Bats are rare. They are known only from southern California. They have been found over a door, behind a signboard, hanging from a window ledge and in a tunnel. All dates known to me are in winter. 276 CALIFORNIA MAMMALS. Family Phyllastomatidee. (Leaf-nosed Bats.) Upper incisors not separated by a space in the middle; but four lower incisors; cutaneous processes present about the nose or mouth; ears medium or large sized; tragus developed. This family is confined to America and is numerous in spec- ies in the tropics. Some species eat fruits as well as insects. Genus Otopterus LyppEKER. (Ear—wing.) Nose leaf simple, erect; ears large, united at base; point of tail extending beyond the interfemoral membrane; skull long and slender. Dental formula, I, 2—2; C, 1—1; P, 2—3; M, 3—3'X2=34. Otopterus californicus Bairp. CALIFORNIA LEAF-NOSED BAT. Nose with an upright “leaf” of cartilege and skin; ears very large, connected at their bases; tragus slender, pointed, one-third the height of the ear; wings broad, not furred; interfemoral membrane small, concave in outline; basal half of pelage white, outer half broccolt brown, darkest above, paler be- neath, slightly tipped with white; membranes light brown. Length about 95 mm. (3.75 inches); tail vetebrae 41 (1.60); ear from crown 28 California Leaf-nosed Bat. (1.10); expanse of wings 330 (13): Type locality, old Fort Yuma, California. California Leaf-nosed Bats are found in Southern California, Arizona, western Mexico and Lower California. In California they frequent valleys and foothills. They are probably migratory. PHYLLASTOMATIDA 277 I know of no instance of their occurance in California in winter, and I have failed to find them at all in January in a place where I.can nearly always find them in spring and summer. ‘They prob- ably spend the day in caves, crevices in rocks and similar dark places. I have not seen them on the wing until all the twilight has faded away. The young are born in June. More than half of the females bear two young, the remainder but one. 278 CALIFORNIA MAMMALS. Order Primates. Inner digit of hand, and in some families the inner digit of foot, opposable to the other digits; femur and humerus fully exserted; clavicles present; orbits encircled by bone and directed forward. Family Hominidee. (Man.) Body erect; inner digit of foot not opposable to the other digits; five digits on each limb; cranium large; cerebral hemi- spheres of brain very large; canine teeth but moderately develop- ed; tooth row without gap; no tail vertebree; hair developed only on special areas; ears rounded, with a soft dependent lobule. If the same rules of classification be applied to Man that are applied in the lower orders he must be included in the Primates with monkeys, apes, etc., but placed in a family separated from them by characters that, taken together, show a higher organiza- tion. “The essential attributes which distinguish Man and give him a perfectly isolated position among living creatures are not to be found in his bodily structure.” They are mental, not physi- cal, and zoological classification is based only on physical charac- ters. Using terms similar to those used in preceding families we may say that the Hominide are distributed over all parts of the land surfaces of the earth; they are plantigrade; terrestrial; diur- nal and crepuscular; omnivorous; more or less gregarious; the adult males. differ somewhat from the females; the immature are similar to the female; mammz two, pectoral; there are usually but one young at a birth, occasionally two, rarely more; the young develope slowly. The Hominidz contains but one genus, which is considered by most zoologists to be composed of a single species, divided in several races (technically subspecies) which blend so thoroughly at one print or another as not to be separable into distinct species. These races vary greatly in physical and mental qualities. HOMINID & 279 Genus Homo Linn. (Man.) Facial angle high; arms shorter than legs; nail flattened, present on all the digits. Dental formula, I, 2—2; C, 1—1; P, 2—2; M, 3—3 X 232. Homo sapiens americanus Linn. AMERICAN INDIAN. Hair coarse, round in transverse section, straight, black, long and abundant on the scalp but sparse elsewhere; skin dark, often with a bronzy tinge; forehead retreating; nose prominent, usually with a high bridge; eyes horizontal. When the first Europeans came to California the Indians were numerous and distributed over all the State except the high- er parts of the mountains and the waterless deserts. Excepting the desert tribes the California Indians were a quiet peaceable peo~ ple. They had few vices but were very superstitious and some- what revengeful. They were humble, contented and industrious considering the ease with which their few natural wants could be supplied. Unlike the Indians of eastern North America they did not torture prisoners nor scalp slain enemies. The chiefs or head men had very little real authority, the conduct of individuals being guided mostly by old customs and superstitions. The tribes were small and weak. In his report on the “Tribes of California” (1877) Powers names over one hundred and fifty tribes, a few of these being small sub-tribes, the remainder being independent and speaking distinct dialects. He did not include the Mission In- dians, nor the Indians of the Colorado valley. It has been found that one of the best clews to the relation- ship between human races is their languages. This seems par- ticularly true of American Indians. The polysynthetic feature of speech runs through all the various American languages and dialects. Their construction is radically unlike that of Eurasian languages and seems to point to a separation from the people now inhabiting Europe and Asia soon after the acquirement of lan- guage by the human races. 280 CALIFORNIA MAMMALS. Few regions of similar extent to California can show a great- er number of contemporaneous native dialects. This seems to have been the results of a very early immigration and settlement of small tribes or fragments of tribes combined with a strong home-loving trait, which may have been a late development. When found by the whites the Indians did not seem to care to travel! and mingle with their neighbors and each tribe and often each community had a dialect of its own. According to the latest map of the Bureau of Ethnology these dialects were grouped in twenty one linguistic stocks, the total number of North American stocks being about sixty-five. The names and distribution of the Cali- fornia linguistic stocks are given on the accompanying map. The question of the derivation of the race of American In- dians has interested many persons. Where the original cradle of the human race was, probably will never be positively decided. It is usually supposed to have been in Asia, yet it may possibly have been in America. It is probable that the dispersion of races oc- cured in pre-glacial times from a well populated circumpolar re- gion. Glaciation slowly forced the inhabitants from the polar regions toward the tropics, and the cold and ice separated the in- habitants of America from those of Europe and America. The difference in construction of the languages of the two continents indicates that this separation occured in a very early stage of language formation. With the melting of the ice and the retreat of the glaciers, which is still progressing, the tribes of Indians nearest the vacated region were able to move slowly northward, al- lowing other tribes to expand or follow if they chose. The high Sierra Nevada range, being heavily capped with snow and ice, was an impassable barrier between the interior of the continent and the comparatively warm coast region of California. Probably fragments of migrating tribes were forced through the passes be- fore these became impassable, and could get no further. \Vhen the glaciers retreated the California Indians did not follow, as there was no pressure from beyond and no inducement to leave. Until the rush of gold seekers no great change occurred in HOMINIDA California Linguistic Stocks He ge h Bee He oI aN SoA AARON ios BH = pS Ne ee 281, Athabascan,. Yurok, Karok, Shasta. Lithuami. Wishosk. Chimariko, Wintun. Yana. Maidu. Yuki. Pomo, Washo. Moquelumnan, Costanoan. Esselen. Yokuts, Salinan. Chumash, Shoshonean, Yuman., 282 CALIFORNIA MAMMALS. the number of Indians in California, but a rapid diminution then ‘began; partly through the unjustifiable persecution by the strong- er, better armed, aggressive gold-seekers, many of whom cared nothing for the moral rights of the Indians; partly through the introduction of intoxicating liquors; but more through the effects of epidemic and other diseases which came with the whites. Now some of the smaller tribes are practically extinct, but under more wholesome conditions the younger generation seems to be nearly holding its own or @lowly increasing in a few places. The Cali- fornia Indians seemed to lack the power of organization amd the faculty of invention, hence they made little progress toward civili- zation until the whites came and took the lead. Their recent pro- gress shows that they are capable of considerable education. The name Amerind has been proposed for the native races of America. It is composed of the first syllables of America and Indian. LIFE AREAS 283 Life Areas of California Most people who have ascended mountains, on business or for pleasure, have noticed that there was a gradual change in the trees and other vegetation as height was gained, and some see that there is a system in this change. At a certain height in one mountain occurs a combination of trees, shrubs, plants, birds, in- sects and mammals, which combination is repeated in a general way on other mountains at a similar altitude, modified by local causes, such as soil, angle or direction of slope, nearness or remote- ness of large bodies of water, height above base level and other conditions. Going higher, a change in the birds, trees, etc., oc- curs through the gradual disappearance of some species and the substitution of others until a new combination is formed. A sim- ilar combination is repeated in other mountains of the region in about the same order. Local causes modify these repetitions more or less, but the general similarity is sufficient to force the close observer to the conclusion that they are controlled by general nat- ural laws. Within a few years much study has been given to the elucidation of these natural laws, and I will attempt to summarize some of the results of these investigations in California. The causes controlling the geographical distribution of life are many, the most important being temperature, moisture, soil and light. We are accustomed to sum up three of these leading causes in the word climate. The most important single cause of the varied distribution of life is heat; its quantity and daily and yearly range over a given area. Other conditions being equal, the warmer the climate of a locality is, the more luxuriant and varied it forms of life will be. A great yearly or daily range of temperature unfavorably affects the life of an area by weeding out the forms most sensitive to such changes, on the principle of the “survival of the fittest.” The heat of a locality is affected by its latitude, altitude, direc- tion of the prevailing winds, height above base level and slope ex- posure. Increase of latitude and altitude produce similar climatic 284 CALIFORNIA MAMMALS, effects, the higher area having a similar climate to that of the lower area situated a certain distance further from the equator. In other words, a traveler passing from the tropics toward the poles at sea level finds the climate steadily becoming colder; in climbing a mountain the same change is observed. If the area of high altitude is great it is warmer than a small similar area at the same height and latitude, for the reason that the greater area conserves the greater amount of heat as daily re- ceived from the sun. It sometimes happens that the base level on one side of a mountain range is higher than that on the other side; in this case the higher level tends to raise the temperature and therefore the life zones on that side. A good illustration is the Himalaya Mountain range. The plain on the south side is sev- eral thousand feet higher than the plateau on the north side; in consequence of this difference of base level on the two sides the timber line and snow line are about three thousand feet higher on the north than on the south side. This is in direct opposition to the effect of latitude which would tend to lower the snow line on the north side. The Sierra Nevada Mountains are another il- lustration. The plateau on the eastern side is from three to four thousand feet higher than the San Joaquin and Sacramento Val- leys on the west side, and in consequence all the life zones are higher on the east side than on the west. Slope exposure is another disturbing cause. A slope directly facing the sun is warmer than one facing away from it. This is very noticeable in many canyons running east and west in semi- arid parts of California, in which case the timber will be found growing considerably lower down on the side receiving the least amount of direct sunshine. Prevailing winds coming directly from large bodies of water tend to cool the region continguous and therefore lower the life zones. The next most important agent in the distribution of life is moisture. The greater or lesser amount of moisture present in air and soil strongly affects the vegetable growth of a locality; as LIFE AREAS 285 animal life of a locality is practically dependent on the vegetation it is in that way affected by the proportion of moisture present. The amount of moisture of a region is regulated by its distance from large bodies of water, the direction of the prevailing air cur- rents, and the height of intervening obstacles, such as mountain ranges. Most of the moisture present in the air originates in the evaporation of seas and other large bodies of water. The moisture laden air moving inland when cooled is unable to hold up all its moisture, which falls as rain. A high range of mountains will greatly cool the air currents passing over it and the heavy rainfall or snowfall resulting may abstract so much of the moisture from the air, that little is left for the region beyond the mountains, which thus becomes arid. The region of the Colorado and Mo- jave Deserts and the greater part of Nevada is an illustration of the drying influence which the Sierra Nevada Mountains exert on the air currents passing over them. The quality of the soil is another factor in the quantity and character of the plant and animal life of a region. The carnivor- ous species of animals of a region subsist on the herbivorous spec- ies; these subsist on the leaves, stems, seeds or root of plants which draw their nourishment from the soil; therefore a richer or poorer soil has a considerable direct influence on such apparent- ly remotely connected beings as the foxes or hawks that live in a region. Dr. C. Hart Merriman has formulated certain laws of the dis- tribution of life which appear to be based on sound reasoning from a sufficient mass of observed facts to assure their correctness. “The northward distribution of animals and plants is de- termined by the total amount of heat—the sum of effective tem- peratures. The southward distribution of Boreal, Transition zone, and Upper Austral species is determined by the mean temperature of the hottest part of the year.” If the North Temperate Realm was composed of sea and level land only, its life zones would nearly follow parallels of 286 CALIFORNIA MAMMALS. latitude around the northern hemisphere, deflected here and there by the effects of warm or cold ocean currents on the shores they wash. The presence of mountain ranges breaks up such uniform- ity of climate and renders the definition of life zones very difh- cult, nowhere more so than in California, where, in many moun- tains, island-like areas are detached from the main bodies of their zones or long points project, or narrow bands curve to follow the sinuosities of the mountain sides. The peculiar topography of this state produces a variety of life zones which is probably equal- ed by no other similar area elsewhere. Bordered as California is by the sea; traversed its whole length by a mountain range, in places carrying perpetual snow; possessing considerable areas lying be- low sea level; having a range of annual rainfall varying from 80 inches in the northwestern part of the State to 3 or 4 1n the south- eastern part, it offers the student of climatology and of the dis- tribution of life facilities unsurpassed in any civilized country, and problems unknown in most other parts of the world. Long ago geographers divided the earth’s surface into five zones, giving them definite boundaries of certain parallels of lati- tude founded on astronomical considerations. Biologists have also divided the earth’s surface into life zones and other divisions. These divisions seldom have very definite boundaries, but blend into one another. For my present purpose I shall follow the division of the northern hemisphere into three Life Realms, as follows: The Arctic Life Realm, surrounding the north pole and passing south- ward to the northern limit of trees, or about the annual isotherm of 32 degrees; the North Temperate Life Realm, extending southward from the Arctic Life Realm to about the annual isotherm of 70 degrees; and a Tropical Life Realm. ‘These Life Realms are subdivided into Life Zones as follows: An Arctic Life Zone, consisting of all the Arctic Life Realm; a Boreal Life Zone, consisting of the upper or northern part of the North Tem- perate Life Realm south to about the summer isotherm of 63 degrees; a Transition Life Zone, consisting of that part of the LIFE AREAS 287 same Realm bounded above or on the north by the summer isotherm of 63 degrees, and below or south by the summer isotherm of 70 degrees; an Upper Austral Life Zone lying be- tween the summer isotherms of 70 degrees and 77 degrees; a Lower Austral Life Zone, consisting of the remainder of the North Temperate Life Realm and a Sub-Tropical Life Zone, con- sisting of the northern part of the Tropical Life Realm. This covers but a small area in southeastern California. That part of the Arctic Life Zone in California is still smaller, consisting of a few small isolated areas on the highest mountain summits. The distribution of life being affected also by the greater or less average amount of moisture present in a given area, and as . this average amount of moisture varies in portions of each life zone, it follows that the distribution of life is not equal through- out a life zone. ‘T’o give expression to the effects of the varying amounts of moisture in life realms and life zones, they are di- vided in sections of variable size called regions, sub-regions and provinces. That part of the North Temperate Life Realm on this continent is known as the North American Region. That part of this region in western North America having a small an- nual rainfall is known as the Arid Sub-Region, and! the part near the sea having a large rainfall is the Pacific Coast Sub-Region. The Arid Sub-Region has been divided into two provinces: the Sonoran Province, consisting of that part in the Lower Austral and Sub-Tropical Zones; and the Campestrian, consisting of that part in the Upper Austral and Transition Zones. I propose further subdividing the life areas of California into Faunas, to consist of areas of nearly equal temperature, moisture and soil, and therefore a nearly homogeneous. local assemblage of life forms. These will not be equal in either size or value, and are intended only to facilitate the study of distribu- tion of species in California. The boundaries of Life Zones and Faunas as indicated on the accompanying map are only pro- visional; further study will necessitate numerous changes. The Californian Arctic Fauna is that part of the Arctic Life 288 CALIFORNIA MAMMALS. Zone in California. A few species of plants constitute the only peculiarly Arctic life in California, as the areas are so small that animal life of strictly Arctic species has disappeared, with the possible exception of insects. The Boreal Zone is forested nearly throughout its extent in California. The principal forest trees are the Foxtail Pine, White-barked Pine, Mountain Pine, Tamarack Pine, and Red Fir. The Californian mammals peculiar to this zone are the Gray-headed Pika, Mountain Beaver, Yellow-bellied Marmot, Belding Ground Squirrel, Alpine, Sierra Nevada and Alpine Chipmunks, Californian Pine Squirrel, Black Fox, Wolverine, Pine Marten and Ermine. Some of the birds breeding princi- pally or exclusively in this zone are Sooty Grouse, White-headed Woodpecker, Williamson Woodpecker, Western Nighthawk, Cal- liope Hummingbird, Olive-sided Flycatcher Gray-eared Finch, White-crowned’ Sparrow, Lincoln Sparrow, Thick-billed Spar- row, Green-tailed Towhee, Audubon Warbler and Black- throated Gray Warbler. The Californian part of the Boreal Zone may be called the Californian Alpine Fauna. The Transition Zone is of considerable extent in northern California, but is of less extent in the southern part of the State, where it is limited to the sides and upper parts of the moun- tains, except that small part rising above about 7,000 feet alti- tude, which is Boreal. In most parts of the State the Transition Zone is well timbered, and is the great source of supply of wood and lumber in this State. The Yellow, Black and Sugar Pines, White Fir, Cedar and Redwood are characteristic of this zone. It contains a large number of species of birds and mammals, though few,perhaps none, are limited to it, nearly all its species being found in the adjoining zones, either above or below. Some of the birds breeding principally in it are the Californian Wood- pecker, Blue-fronted Jay, Californian Purple Finch, Violet-green Swallow and Mountain Chickadee. The Transition zone in California may be divided into sev- eral Faunas. The northeast part of the State, north of Honey LIFE AREAS 289 Lake and east of Mt. Shasta, may be called the Modoc Fauna. It is a high broken plateau with some coniferous timber on the highest parts. A character of this Fauna is the abundant pres- ence of sage brush (drtemesia). South of the Modoc Fauna is a large area of the Transition Zone in the lower parts of the Sierra Nevada Mountains, which may be called the Sierra Ne- vada Fauna. It is mostly well timbered, with Yellow Pine as the principal species. Those areas of the Transition Zone lying south of Lat. 35 degrees may appropriately take the name of the San Bernardino Fauna. Here also the Yellow Pine is a charac- teristic tree. The region about Mt. Shasta, north to Oregon and west to the low strip along the sea coast may provisionally take the name of the Shasta Fauna until its features are better known. I know nothing of this fauna personally, and I can find very lit- tle published concerning its faunal conditions. A narrow strip along the seacoast from the Oregon line south to San Francisco may be called the Humboldt Fauna. This is a region of heavy rainfall and fogs, and a strong character is the presence of heavy redwood forests. A continuance of this narrow strip along the coast southward, including the Santa Cruz Mountains, and end- ing a short distance south of Point Sur, may take the name of the Santa Cruz Fauna. It presents similar characters to that of the Humboldt Fauna, but in a less marked degree. The Upper Austral Zone lies next below or south of the Transition Zone. In many parts of the Upper Austral Zone a thick growth of several species of shrubs, collectively known as chapparral or chemisal, covers the hills. Forests are few, and west of the Sierras are composed mostly of oaks, which east of the Sierras are replaced by Pinons and Junipers. The Gray- leafed Pine is common in this Zone in some places within the drainage of the San Joaquin and Sacramento valleys. The most characteristic mammals of the Upper Austral Zone are Pocket Rats, two genera and several species, Pocket Mice of several species, Californian Grasshopper Mice, Striped Skunk, Gray and Island Foxes. The following species of birds find their upper 290 CALIFORNIA MAMMALS, or northern limits in this zone: Nuttall Woodpecker, Costa Hummingbird, Yellow-billed Magpie, Nelson Oriole, Lawrence Goldfinch, Black-throated Sparrow, Long-tailed Chat, Californian Thrasher and Black-tailed Gnatcatcher. That part of the Upper Austral Zone lying on the west side of the Sierra Nevada Mountains, consisting of a long narrow strip along the sides of the lower parts of the mountains, may be called the Foothill Fauna. A broken region of moderate ex- tent, bounded on the west by the Humboldt Fauna, on the north by the Shasta Fauna, on the east and south by the Sacramento Valley, may be called the Clear Lake Fauna. The region bounded on the west and southwest by the Santa Cruz Fauna and the Pacific Ocean, on the southeast by the Santa Ynez Mountains, and on the northeast by the San Joaquin Valley may be called the San Luis Obispo Fauna. All the islands lying off the Southern California coast may be grouped together under the name of the Island Fauna. That part of the Upper Austral Zone south of the San Luis Obispo Fauna and the Mojave Desert and west of the Colorado Desert may be called the San Jacinto Fauna. The Lower Austral Zone includes most of the Mojave Desert, the San Joaquin and Sacramento valleys, and a strip. along the coast from Santa Barbara to San Diego and southward. Owver much of this area cactuses form a characteristic part of the vegetation. But few trees occur, and these are found mostly along streams and in damp land. Much of this zone is very arid. Shrews are nearly wanting in this zone. Several species of bats find their northern limit in it, as do several species of ground squirrels. No species of tree squirrels or chipmunks (genera Scirus and Eutamias) occur. Several species of Pocket Rats and Pocket Mice and the Big-eared Fox are peculiar to this zone, the Gambel Partridge, Scott Oriole, Leconte Thrasher, Crissal Thrasher, Yellow-headed Tit and Plumbeous Gnatcatcher. The large valley known as the Sacramento Valley (north- Teaidoiy-qng |: TelIsny Jamoy Tedisny Jaddq ‘uoltsuezy, |; ‘Teo10g ‘ONodly ‘“SANOZ | ‘oUIpPIeUdeg UBS ‘EL’ ‘oBaId UBS ‘GI‘ ‘oyUlDBr UBS ‘TL! ‘zndD BUBS ‘OL ‘odsiqo sin] Ues - ‘oHBT] ABD ‘8 euldiy ‘2 Q | ak us eenre eto \ pee HAC’ BAN : Ns riper PAN | So, : ‘ cs é rad | . | iN NWS N ‘puetsy (214 4 SON ah ~f @ “ROTBA Opeuolod ‘SI * an ae = ‘2AR(OW ‘I i : ‘OnNOLV “PT | f poy Wott, f Sy os "ePpBAIN BLLBI 6 ; Yaeae TIROOT ‘3 - , ‘OWUBULELOeS “PF | ‘20poNM ‘> | “elseUus Si yPLOqUIN ‘TL? "SYNOAVA LIFE AREAS 291 ern part), and San Joaquin Valley (southern part), may be called the Sacramento Fauna. ‘The comparatively small area of Lower Austral Zone in the southwestern part of the State may be called the San Diego Fauna. In the eastern part of the State is a large area of arid plain, studded with small barren mountains, known as the Mojave Desert. It is principally Lower Austral Zone, but has a few tracts sufficiently elevated to reach the Upper Austral, and a few very small areas of Transition Zone. ‘This area north of the low Colorado Desert and west of the bottom lands of the Colorado River may be called the Mojave Fauna. The Sub-Tropical Zone in California is confined to the bot- tom land along the Colorado River and west in the Colorado Desert, which is properly a part of the same bottom lands. Among the birds which do not breed above this zone, and are found in this part of California are the Harris Hawk, probably the Audubon Caracara, Elf Owl, Vermillion Flycatcher, Abert Towhee and Cooper Tanager. This part of the Sub-Tropical Zone may be called the Colorado Valley Fauna. 292 The a 17s 18. 19. 20. Zi, CALIFORNIA MAMMALS. ee List of California Mammals and their faunal distribution Zones are given by name and the Faunas by number. Refer tothe map. Family BALZINIDA. Balena japonica. Pactric Richt WHALE. Pelagic. Rhachianectes glaucus. CALIFORNIA Gray WHALE. Pelagic. Megaptera nodosa versabilis. Paciric Humppack WuHate. Pelagic. Balenoptera physalis velifera. Orecon Finpack WHALE. Pelagic. Balenoptera acuto-rostrata davidsoni. SHARP-HEADED FINNER WHALE. Pelagic. Sibbaldius sulfureus. Su_pHur-Borttep Wats. Pelagic. Family PHYSETERIDA. Physeter macrocephalus. Sperm Wuatr. Pelagic. Family DELPHINIDZ:. Lissodelphis borealis, Norturrn RicHt Wuats Porpotsr. Pelagic. Phocena communis. Bay Porpotse. Littoral and pelagic. Orcinus rectipinna. STRAIGHT-FINNED KILLER. Pelagic. Orcinus ater. Biack Kituer. Pelagic. Globicephala scammoni. ScaMmon Biacxrisu. Pelagic. Grampus griseus. Common Grampus. Pelagic. Lagenorhynchus obliguidens. Srrtpep Porrotst. Pelagic. Delphinus delphis. Common Dotputn. Pelagic. Tursiops gilli. CowrisH. Pelagic. Family CERVIDAE. ‘ Cervus roosevelii. Rooskvert Warrit. Elk. Transition, 2. Cervus nannodes. CALIFoRNIA Waprttt. Elk. Lower Austral, 4. Odocoileus hemionus. Mute DEER. Transition, Boreal, 5, 6, 7. Odocoileus hemionus eremicus. Burro Derr. Lower Austral, Sub-tropical, 15, 16. Odocoileus hemionus californicus. Cauirornta Mute Derr. Transition, Upper Austral, Boreal and Lower Austral, 5, 9, 11, 12, 13. Odocoileus columbianus. BiacK-TaILep Derr. Transition and Boreal, 1, 2, 3, 5, 6. 23. 24. 25. 26. 27. 28. 29. LIST OF CALIFORNIA MAMMALS 293 Odocoileus columbianus scaphiotus. SoutTHern BLACK-TAILED DEER. Transition, Upper Austral, 9, 10. Family ANTILOCAPRIDA. Antilocapra americana. PRONG-HORNED ANTELOPE, Upper and Lower Austral, Sub-tropical, 3, 15, 16. Family BOVIDZ. Ovis canadensis. Rocxy Mountarn BicHorn. Mountain Sheep. Formerly Boreal, Transition, 2, 3, 6, 7. Ovis nelsoni. NeLSon Bicuory.. . Transition, Upper and Lower Austral, 13, 15. Oreamnos montanus. Mounvatn Goat. Formerly Boreal, 6, 7. Family SCIURID. Marmota flaviventer. YeLLOW-BELLIED MARMot. Boreal, 3, 6, 7. Citellus beecheyi. Cairornta GRrouNnD-SQUIRREL. Transition, Upper and Lower Austral, 9, 10, 11, 12, 13. Citellus beecheyi douglassi. Doucuass GrounD-SQUIRREL. Transition, Upper Austral, 2, 3, 5, 6. Citellus beecheyi fisheri. Fisuer GRouNnpD-SQUuIRREL. Upper and lower Austral, 4, 5, 15. Citellus tereticaudus, Rounp-TatLep GRouND-SQUIRREL. Lower Austral, Sub-tropical, 15, 16. Citellus beldingi. Brtpinc Grounp-SqQutrre. Boreal, Transition, 3, 7. Citellus mollis stephensi. SterHens Grounp-SQuirreEL. Transition, Upper Austral, 6. Citellus mohavensis. MoHAvE GROUND-SQUIRREL. Lower Austral, 15. Citellus chrysodcirus. Gttnep GRrouND-SQUIRREL. ‘Transition, Boreal, 2, 3, 6, 7. Citellus chrysodeirus bernardinus. SAN BERNARDINO GROUND-SQUIRREL. Transition, Boreal, 13. Citellus chrysodeirus trinitatus. Trintty GRouND-SQUIRREL. Transition, Boreal, 2. Citellus leucurus. ANTELOPE GROUND-SQUIRREL. Upper and Lower Austral, 3, 6, I5. Citellus nelsoni. NFLSON GROUND-SQUIRREL. Lower Austral, 4. Eutamias alpinus. AwLpIne CHIPMUNK. Arctic, Boreal, 7, 14. 294 CALIFORNIA MAMMALS. 42. Eutamias amoenus, KLAMATH CHIPMUNK. Boreal, 2, 3, 6, 7. 43. Eutamias pictus. Desert CHIPMUNK. Upper Austral, Transition, 3, 6. 44. Eutamias panamintus. PANAMINT CHIPMUNK. Transition, Upper Austral, 15. 45. Eutamias speciosus. SAN BERNARDINO CHIPMUNK. Boreal, Transition, 13. 46. Eutamias speciosus callipeplus. Mount Pinos CHIPMUNK. Transition, 5, II. 47. Eutamias speciosus frater. Sierra NevapA CHIPMUNK. Transition, Boreal, 6, 7. 48. Eutamias quadrimaculatus. Lonc-kARED CHIPMUNK. Transition, Boreal, 6, 7. 49. Eutamias quadrimaculatus senex. ALLEN CHIPMUNK. Transition, Boreal, 3, 6, 7. 50. Eutamias townsendi ochrogenys. ReDwoop CHIPMUNK. Transition, I. 51. Eutamias hindsi. Hinps CHIPMUNK. Upper Austral, Transition, 1, 8. 52. Eutamias hindst pricei. Price CHIPMUNK. Transition, Upper Austral, 9, Io. 33. Eutamias merriami. MERRIAM CHIPMUNK. Transition, Upper Austral, 5, 11, 13. 54. Sciurus griseus. CoLUMBIA GRAY SQUIRREL. Transition, 6, 8. 55. Sciurus griseus nigripes. BLACK-FOOTED GRAY SQUIRREL. Transition, 10. 56. Scturus griseus anthonyi. ANTHONY GRAY SQUIRREL. Transition, 13. 57. Sciurus douglassi albolimbatus. CALIFoRNIA CHICKAREE. Transition, Boreal, 2, 3, 6, 7. 58. Sciurus douglassi mollipilosus. Repwoop CHICKAREE. Transition, 1. 59. Sciuropterus alpinus klamathensis. KLAMATH FLYING-SQUIRREL. Boreal, 2, 3. 60. Sciuropterus alpinus californicus. SAN BERNARDINO FLYING-SQUIRREL. Boreal, Transition, 13. 61. Sciuropterus oregonensis stephensi. STEPHENS FLYING-SQUIRREL. Transition, I. Family APLODONTIDZ. 62. Aplodontia major. CALIFORNIA Mountain BEAVER. Boreal, 2, 7. 63. 64. 65. 66. 67. 68 69. 70. 71. 72. . 79. 81. LIST OF CALIFORNIA MAMMALS Aplodontia phea. Point Reyes Mountain Braver. Transition, 1. Family CASTORIDZ. Castor canadensis frondator. BRroap-TaILED BEAVER. Lower Austral, Sub-tropical, 16. Castor canadensis pacificus. Pactric Braver. Boreal, Transition, Upper Austral, 2, 3, 5, 6. Family MURIDZ. Mus norvegicus. Brown Rat. Cosmopolitan. Mus rattus. Buack Rat. Cosmopolitan. Mus musculus. Common Mousse. Cosmopolitan. 295 Onychomys torridus ramona. SAN BERNARDINO GRASSHOPPER-MoUusE. Upper and Lower Austral, 11, 12. Onychomys torridus perpallidus. Yuma GRASSHOPPER-MOUSE. Sub-tropical, 16. Onychomys torridus tularensis. "TULARE GRASSHOPPER-MousE. Lower Austral, 4. Onychomys torridus longicaudus. LoNG-TAILED GRASSHOPPER-MouvusE. Upper Austral, 15. Peromyscus texanus gambechi. GAMBEL Mouse. Transition, Boreal, Upper and Lower Austral. tributed. Peromyscus texanus deserticolus. Desert Drer Mouse. Lower Austral, Sub-tropical, 15, 16. Peromyscus texanus clementis. SAN CLEMENTE Mouse. Upper Austral, 17. Peromyscus oreas rubidus. Mernpocino Mouse. Transition, I. Peromyscus boylit, Boyte Mouse. Transition, Boreal, Upper Austral, 2, 3, 4, 5, 6, 7, II. Peronvyscus truei. Bic-EARED Mouse. Upper and Lower Austral, Transition, 1, 2, 8, 9, 10, If. Peromyscus californicus, CALiroRNIA Mouse. Upper and Lower Austral, Transition, 1, 5, 8, 9. 10. Peromyscus californicus insignis. CHEMIsAL Mouse. Upper and Lower Austral, 11, 12. Peromyscus eremicus, Hermit Mouse. Lower Austral, Sub-tropical, 15, 16. Generally dis- 296 90. gl. 93- 04. 95. 096. 97. 098. 99. 100. IOI. 102. 103. CALIFORNIA MAMMALS. Peromyscus eremicus stephensi. Pam Desert Mouse. Lower Austral, 15. Peromyscus eremicus herroni. Herron Mouse. Upper Austral, 11. Peromyscus eremicus fraterculus. Dutzura Mouse. Upper Austral, 12. Sigmodon hispidus eremicus. WerstTeERN Cotton Rat. Sub-tropical, 16. Reithrodontomys longicaudus. LoNnc-TAILED Harvest Mouse. Upper and lower Austral, 4, 5, 8, 9, 10, II, 12. Reithrodontomys megalotis deserti. Desert HaArvest-Mouse. Upper and lower Austral, 15. Reithrodontomys klamathensis. KyuamMatH Harvest-MouseE. Transition, 2, 3. Neotoma cincrea. ASH-COLORED Rat. Transition, Boreal, 2, 3, 6, 7. Neotoma fuscipes. Dusxy-Footep Brusu-RAt. Upper Austral, Transition, 1, 8, 9, 10. Neotoma fuscipes monochroura. NortHuRN DusKyY-FOOTED, BRuSH-RatT. Transition, I, 2. Neotoma fuscipes macrotis. SoUTHERN DusxKy-FooteD BrusH-Rat. Upper and Lower Austral. Transition, 11, 12, 13. Neotoma fuscipes simplex. XAnNtTus BrusH-Rat. Upper and Lower Austral, 4, 5, IJ, I5. Neotoma fuscipes streatori. STREATOR BRusH-Rat. Transition, Upper Austral, 3, 5, 6. Neotoma fuscipes dispar. PALE BrusH-Rat. Upper Austral, 15. Neotoma desertorum. DeEsERT BrusH-Rat. Upper and Lower Austral, 15. Neotoma desertorum sola. Kirn Brusu-Rat. Lower Austral, 4. Neotoma intermedia, INTERMEDIATE BrusH-Rat. Upper and Lower Anstral, 9, I1, 12. Neotoma intermedia gilva. YetLow BrusH-Rat. Lower Austral, 15, 16. Neotoma albigula venusta. Mesquite BrusH-Rat. Sub-tropical, Lower Austral, 16. Phenacomys orophilus. Mountain LemMinc-Mousse. Boreal, 2. Phenacomys albipes. Repwoop LemMMING-Mouss. Transition, 1. Evotontys californicus. CAatiForniA Rrp-Backep Mouse. Transition, I. 104. 105. 106. 107. 108. 109. T10. III. II2. 113. II4. 115. 116. 117. 118. II9g. 120, I2I. I22. 123. 124. LIST OF CALIFORNIA MAMMALS Evotomys obscurus, Dusky Rep-BACKED Moust. Transition, 3, 6. Evotomys mazama. Crater LAKE ReD-BACKED Mouse. Boreal, 2, 3. Microtus montanus. PEALE Mrapow-Movse. Transition, 2, 3. Microtus dutcheri. DutcHer Mrapow-Movuse. Boreal, 7. Microtus californicus. Catirornia Mrapow-Mouse. Upper and Lower Austral, 5, 9, 10, 11, 12. Microtus californicus vallicola. Wattey Mrapow-Mousz. Upper and Lower Austral, 15. Microtus californicus constrictus. Coast Mrapow-Mouss. Transition, 1. Microtus edax. Tutte MEapow-Mouss. Lower Austral, 4. Microtus scirpensis, Drsert Mrapow-Mouste. Lower Austral, 15. Microtus mordax. CANTANKEROUS MEApow-MousE. Boreal, 2, 3, 7, 13. Microtus angusticeps. Battey Mrapow-Mouss. Boreal, Transition, 1. Microtus curtatus. SHoRT-TAILED MEADow-Mouse. Transition, 6. Microtus oregoni. Orecon Mrapow-Mouse. Transition, I. | Fiber zibethecus pallidus. Pate MuskKRAT. Sub-tropical, 16. Family GEOMYID. Thomomys fulvus nigricans. Tawny PocKket-GoPHER. Upper Austral, 11. Thomomys monticolus. Mountatw Pocxet-GopHer. Boreal, 2, 3, 6, 7. Thomomys monticolus pinetorum. P1ink-woops PocKet-GopHER. Transition, Boreal, 2. Thomomys alpinus. ALPINE PocKrt-GoPHER. Boreal, Alpine, 7. et Thomomys perpallidus. Pati PocKket-GorHer. ; Lower Austral, Sub-tropical, 15, 16. Thomomys perpallidus perpes. GonDEN PockeEt-GoPHER, Lower Austral, 13. Thomomys botte. CALIFORNIA PocKEt-GoPueErR. Upper and Lower Austral, Transition, 8, 9, 10. 297 298 125. 126. 127. 128. 129. 130. 131. 132. 133. 134. 135. 136. 137. 138. 130. 140. 141. 142. 143. 144. 145. Thomonrys Thomomys Thomomys Upper Thomomys Lower Thomomys Lower Thomomys Lower Thomomys Lower Thomomys CALIFORNIA MAMMALS. botte pallescens. SouTHERN PocKet-GorHER. Upper and Lower Austral, Transition, 11, 12, 13. laticeps. BROAD-HEADED PocKkEt-GoPHER. Transition, 1. leucodon navus. Rep Biurr PocKxet-GorHER. and Lower Austral, 4. angularis. SAN JoAQuiIn PocKet-GOPHER. Austral, 4. angularis pascalis. Austral, 4. Fresno Pocket-GorHEr. operarius. COWEN VALLEY PocKket-GoPHER. Austral, 15. cabezonxz. CABEZON Austral, 15. Pocxet-GoPHER. fuscus fisheri. Tisaer Pocxet-GorHer. Transition, 6. Family HETEROMYID. Perodipus agilis. Gamer, Pocker-Rat. Upper and Lower Austral, 12. Perodipus ingens. Upper Perodipus venustus. Austral, 9. Transition, Io. Perodipus goldmani. Upper Perodipus panamintus. Austral, 9. Bic PocKet-Rat. Santa Cruz PocKxet-Rat. GotpMaNn Pocxet-Rat. PANAMINYT PocKet-Rat. Upper and Lower Austral, 15. Perodipus streatori. StREATOR Upper Perodipus microps. Lower Dipodomys Lower Dipodoni's Lower Dipodomys Lower Dipodoinys Lower Dipodomys Lower Austral, 5. Austral, 15. Pocxet-Rat. Inyo Pocxrt-Rat. californicus. CALIFORNIA PocKxet-Rat. Upper Austral, Transition, 1, 8. Dipodomys californicus pallidulus. Corusa Pocxet-Rat. Austral, 4. deserti. Desert Pocxet-Rat. Austral, Sub-tropical, 15, 16. merriaqmt simiolis. Mimic Pocxer-Rat. Austral, Sub-tropical, 15, 16. merriami parvus. Austral, 12. merriamni nitratus. Austral, 15. San Bernarpino Pocket-Rat. KeEeLer PocKxer-Rat. 146. 147. 148. 149. 150. I51. 152. 153. 154. LIST OF CALIFORNIA MAMMALS Dipodomys merriami nitratoides. 'TuLare Pockwr-Rat. Lower Austral, 4. Dipodomys merriami exilis. Least Pocxyr-Rat. Lower Austral, 4. 299 Microdipodops californicus. CautrorNta Dwarr Pocxet-Rav, Transition, Upper Austral, 3, 6, ve Perognathus panamintus. PANAmint Pocxe?-Mouse. Lower Austral, 15. Perognathus panamintus bangsi. Bancs Pocxer-Mouse. Lower Austral, 15. Perognathus panamintus arenicola. Sanp Pocxet-Movuse. Sub-tropical, 16. Perognathus brevinasus. Swort-Nosep Pocxrt-Movuss, Lower Austral, 12. Perognathus pacificus. San Disco Pocxet-Mouss. Lower Austral, 12. Perognathus parvus mollipilosus. Couns PocKxrt-Mouse. Transition, Boreal, 2, 3. Perognathus parvus olivaceus. Great Bastn Pocxet-Mouse. Upper Austral, Transition, 6. Perognathus parvus magrudercnsis. Mr. Macruver PocKet-Mouse. Transition, 15. Perognathus alticola. Wuyri-rarep Pocxrt-Mouse. Transition, 13. Perognathus formosus. Lone-Taitep Pocker-Mouse. Upper Austral, 15. Perognathus longimembris. San Joaquin Pocxer-Mouse. Lower Austral, 4. Perognathus penicillatus. Turt-tarmep Pocxrt-Movse. Lower Austral, Sub-tropical, 15, 16. Perognathus penicillatus angustirostris, CoLorapo DrsErt Mouse. Sub-tropical, 16. Perognathus stephensi. StepHens Pocxet-Mouse. Lower Austral, 15. Perognathus fallax. Swort-kareD Pocket-Mouse. Upper and Lower Austral, 11, 12. Perognathus fallax pallidus. Patti Pocxrt-Mouse. Lower Austral, 15. Perognathus californicus, CAIIFORNIA PocKet-Mouse. Upper Austral, 9. Perognathus californicus dispar. AtLEN PocKket-Mouse. Upper and Lower Austral, 5, 9, II, 12. Pocket- 300 167. 168. 169. 179. 171. 172. 173. 174. 175. 176. 177. 178. 179. 180. 181. 182. 183. 184. CALIFORNIA MAMMALS... Perognathus femoralis. Dark Pocxet-Mouse. Upper Austral, 11. Perognathus spinatus. Spiny Pocket-Mouse. Lower Austral, Sub-tropical, 15, 16. Family ZAPODIDA. Zapus trinotatus. NortHweEst Jumpinc-Mouse. Transition, I. Zapus trinotatus alleni. ALLEN Jumpinc-Mouse. Boreal, 2, 3, 6, 7. Zapus orarius, Coast JumMpinc-MousE. Transition, I. Zapus pacificus. Paciric Jumpinc-Moustr. Transition, 2. Family ERETHIZONTIDZ:. Erethizon epixanthus. WESTERN PoRCUPINE.. . ‘transition, Boreal, 2, 3, 6, 7, 13. Family OCHOTONID. Ochotona schisticeps. SIERRA NEVADA PIKA. Boreal, 2, 3, 6. 7. Family LEPORIDZA. Lepus campestris sierre. SIERRA PRAIRIE HARE. Boreal, Transition, 7. Lepus californicus, CALIFORNIA HARE. Upper and Lower Austral, Transition, 2, 4, 5, 8, 9, II, 12. Lepus richardsoni. RicHaRDSON Hare. Upper Austral, 5, 9. Lepus texianus deserticola. DEsErt Hare. Upper and Lower Austral, Sub-tropical, 3, 6, 15, 16. Lepus texianus tularensis. TULARE Hare. Lower Austral, 4. Lepus audubont. AuDUBON Hare. Upper and Lower Austral, Transition, 4, 5, 6, 8, 10, 11, 12, 13. Lepus auduboni arizone. Arizona Woop Hare. Upper and Lower Austral, Sub-tropical, 15, 16. Lepus nuttalli. Nuvrart, Woop Hare. Transition, 2, 3. Lepus bachmani. BAcHMAN BrusH Hare. ‘Transition, I, Io. Lepus cinerascens. AsuHy Brusu Hare. Upper and Lower Austral, 9, 11, 12. LIST OF CALIFORNIA MAMMALS 301 Family PHOCIDZ. 185. Phoca richardu. Pacttic Harsor SEAL. Littoral. 186. Phoca richardii geronimensis. SAN GERONIMO Harpor SEAL. Littoral. 187. Mirounga angustirostris. CALIFORNIA ELEPHANT SEAL. Littoral. 188. Zalophus californianus. CALIFORNIA SEA Lion. Littoral. 189. Eumetopias jubata, STELLAR SEA Lion. Littoral. 190. Callorhinus alascanus. NorTHERN Fur SEAL. Littoral. 191. Arctocephalus townsendi. GUADALOUPE FuR SEAL. Littoral. Family FELIDA. 192. Felis hippolestes olympus. Paciric Coast Coucar. Transition, Upper Austral, 1, 2, 3, 5, 6, 8. 193. Felis aztecus browni. BRown Covcar. Transition, Upper and Lower Austral, Sub-tropical, 11, 12, 13, 15, 16. 194. Lynx eremicus. DeEseRtT LYNX. Upper and Lower Austral, Sub-tropical, 5, 8, 9, 11, 12, 13, 15, 16. 195. Lynx fasciatus pallescens, WASHINGTON LYNX. Transition, Upper Austral, 1, 2, 3, 5, 6. Family CANIDZE. 196. Canis ochropus. VALLEY Coyote. Upper and Lower Austral, Transition, 2, 4, 5, 8, 9, 11, 12. 197. Canis estor. DESERT COYOTE. Upper and Lower Austral, Sub-tropical, 15, 16. 198. Canis lestes. Mounrain Coyore. Boreal, Transition, 2, 3, 6, 7. 199. Canis mearnsi, MEARNS Coyote. Transition, II. 13. 200. Canis mexicanus, Gray WOLF. Boreal, Transition, 3, 7. 201. Vulpes macrotis. LoNc-£ARED Fox. Lower Austral, Sub-tropical, 11, 15, 16. 202. Vulpes muticus, San Joaguin Fox. Lower Austral, 4. 203. Vulpes necator. Hien Srerra Fox. Boreal, 7. 302 204. 205. 206. 207. 208. 200. 210. 2it. 212. 213. 214. 215. 216. 217. 218. 219. 220. 227; 222. CALIFORNIA MAMMALS. Vulpes cascadensis. CascapE Mountain Fox. Boreal, 2, 3, 7. Urocyon californicus. CALIFORNIA Gray Fox. Transition, Boreal, Upper and Lower Austral, 9, II, 12, 13. Urocyon californicus townsendi. 'TowNseND Gray Fox. Transition, Upper Austral, 2, 3, 5, 6. Urocyon littoralis, San Muicure, Istanp Fox. Upper Austral, 17. Urocyon littoralis santacruse. Santa Cruz ISLAND Fox. Upper Austral, 17. Urocyon clemente. San CLemEN’ts ISLAND Fox. Upper Austral, 17. Urocyon cataline. Santa CAtatina ISLAND Fox. Upper Austral, 17. Family PROCYONID.. Bassariscus astutus raptor. CALIFORNIA RING-TAILED CAT. Transition, Upper Austral, 1, 2, 3. 5, 6, 13. Procyon psora. CALIFORNIA Raccoon. Upper and Lower Austral. Transition, 4, 5, 8, II, 12. Procyon psora pacifica. PactFtc Raccoon. Upper Austral, Transition, 2. Procyon pallidus. Desert Raccoon. Lower Austral, Sub-tropical, 15, 16. Family URSIDZE. Ursus horribilis. Grizzuy BEAR. Transition, Upper and Lower Austral, 2, 3, 4, 5, 6, 8, 9, 13. Ursus americanus. PLACK BEAR. Boreal, Transition, Upper Austral, 1, 2, 3, 5, 6, 8, 9, 13. Family MUSTELIDA. Latax lutris nercis. SourTHerN SEA OTTER. Littoral. Lutra canadensis pacifica. Paciric Over. Transition, Upper Austral, 1, 2, 3, 4, 5, 6, 8. Lutra canadensis sonora. SoNora O'TER. Lower Austral, Sub-tropical, 16. Taxidea tarus neglecta, WESTERN BADGER. Transition, Upper and Lower Austral, 2, 3, 4, 5, 6, 8, 9, II, 12. Mephitis occidentalis, CALIFORNIA SKUNK. Transition, Upper and Lower Austral, 1, 2, 4, 5, 8, 9, 10. Mephitis occidentalis major. Great BASIN SKUNK. Transition, Upper Austral, 3, 6. 223. 224. 225. 226. 227. 228. 229. 230. 231. 232. 233. 234. 235. 236. 237. 238. 230. 240. 24l. 242, 243. LIST OF CALIFORNIA MAMMALS Mephitis occidentalis holzneri. SoutHERN CALIFORNIA SKUNK. Transition, Upper and Lower Austral, 9, IJ, 12, 13. Mephitis platyrhinus. Broav-Nosep SKUNK. Transition, Upper Austral, 5, 6. Mephitis estor. ARIzoNA SKUNK. Lower Austral, Sub-tropical, 15, 16. Spilogale phenax. Western Sporrep SKUNK. Upper and Lower Austral, 4, 5, 9, II, 12. Spilogale latifrons. LirtLte Spottep SKUNK. Upper Austral, Transition, 2. Gulo luscus. WOLVERINE. Boreal, Transition, 2, 3, 6, 7. Mustela pennanti pacifica. PactFic Fisuer. Boreal, Transition, 1, 2, 3, 6, 7. Mustela caurina. Pactstc Pins Marten. Boreal, ‘Transition, 1, 2, 3, 6, 7. Lutreola vison energuemnos, Paciric MINK. Transition, I, 2, 3, 6, 7: Putorius xanthogenys. CALIFORNIA WEASEL. Upper and Lower Austral, Transition, 4, 5, 9, II, 12. Putorius xanthogenys mundus. Repwoops WEASEL. Transition, Upper Austral, 1, 8. Putorius arizonensis. MountTAIn WEASEL. Transition, Boreal, 2, 3,.6, 7. Putorius muricus. LirtLeE WEASEL. Boreal, 7. Family SORECIDA. Sorex vagrans. WANDERING SHREW. Transition, Boreal, Upper Austral, 1, 2, 3, 6, 7, 9, 10, II. Sorex ameenus. StERRA NEVADA SHREW. Boreal, 7. Sorex obscurus. Dusky SHREW. Boreal, 7. Sorex montereyensis . Monrerey SHREW. Transition, Boreal, 1, 2, 5, 6, 9, 10. Sorex ornatus. ADORNED SHREW. Transition, Upper Austral, 11, 13. Sorex californicus. CALIFORNIA SHREW. Transition, Upper Austral, 8, 9. Sorex tenellus. INyo SHREW. Transition, 6. Sorex tenellus lyelli. Boreal, 7. Mount Lyset, SHREW. 303 304 CALIFORNIA MAMMALS. 244. Sorex tenellus myops. Wurre Mountain SHrew. Transition, 6. 245. Sorex pacificus, Pactric SHREW. Transition, 1. 246. Sorex palustris navigator. Water SHREW. Boreal, Transition, 2, 3, 7. 247. Sorex bendirei. BENDIRE SHREW. Transition, 1. 248. Notiosorex crawfordi. Gray SHREW. Upper and Lower Austral, 17, 12. Family TALPIDA. 249. Scapanus townsendi. Townsenn MOLE. Transition, I. 250. Scapanus californicus. CALIFORNIA MOLF. Transition, Upper Austral, 1, 2, 5, 6, 8, Io. 251. Scapanus californicus anthony. ANTHONY MOLE. Transition, Upper and Lower Austral, 11, 12, 13. 252. Scapanus californicus truci. Movoc Mote. Upper Austral, 3. 253. Neurotrichus gibbsi mujor. LARGE SHREW-MOLE. Transition, Boreal, 2, 3. Family V}ESPERTILIONID®. 254. Antrozous pallidus, Pate Bar. Lower Austral, Sub-tropical, 15, 16. 255. pp nsatorgele Pie ced alan lanua dione oare eal aes a-ala a Beaver, Broad-tailed ............-. eds dhol Ge shh ete Roasted Mao California Mountain .......... 00... cece cee ee eee eee eee PRGINC? adept puiadant dips ata tie bos eae et ae oee eR Point: Reyes Mountain: :22..dases6 issu yreses Faneeeeseee es béeecheyi, Citelliss goa ia wees eee eG Nae ees douglassi, (GiteHus sysiaeseeacrt guid SUAS ewe Mite dae a fisheri:: “Citellus: = cig: isa a ee owas Seed a Sea eee Belding Ground Squirrel ............ 0... eee eee eee eee beldinet, Crtellus: ciscce se cen cb osde Since se suiasis sey res es bendivel. SOLEX scan cess pee tasalaaa otis eenees causa AS wea Bendire, Shrew: cyewa seus teotGasigds hades yea ewe ees bernardinus chrysodeirus, Citellus ................000.0 eee Eptesicus fuscus ....... cayeatek acre AK US om atmo tietre ttn e tats Big-eared. Mouse ..05 cave casda verbose wee saageeeees aces ew ews 314 CALIFORNIA MAMMALS Pighorns Nelson iy eecnsaieeae SYesatin gy leg bec eae a ieee eis 58 Roeky Mountain: oo scccesed imag os eaydleb a knee cueeae nes 57 ‘Big: Pocket Rates sees, Sebuek. (dade ecdaeeoeemene: Caled 153 Blath Bear: so c..¢ec meine anewelens aaadkwawedeadad aeied 230 footed Gray Squirrel, 3) .5 aun cee eed dete dese Re ee nee 87 OO | taney Sen) aa teeta cen taits ohne chr ON Ve ieee ness aazeisd Teta fan 244 Waller? 2ec edge hash ieced et a Get R Giew ee ek ee 35 MATES hese eis leant nee ean ca ne wn vara deed CRO ort Beg ue) ent a acl leas 100 TAC DEER? cxG Wes. Gaeiias Gu Reese ee} Bald Wain oO a Tac a ee 53 MOUEMErM, sls ny leh ene Maes Sam oe be See . o4 Blaclefishy S@avinon, -pcncogeoie sslseeduee wine oe ag oho ba Bae ne eae ceo 38 Biié: Rabbit occas iw teeeecaea gia daw bade cat eR Gee bee eeawds 194 borealis teliotus, Lasiurus ....... 0.0.0.0 cc cece cece ene ees 271 TSSOMEl PIS: gies Peewee ed o Ra ee Sead AR Sow es 33 hottie. “ENOMGMYS: 45 oth 2os oa teed Putia B ede dees GAR eee 139 pallescens, Thomonuzs ........... 0... cece ee ee ee eens 145 Bode, Wamwily’ 2c4cc-. oeoicss ce evanae se epaseeaeede oes dT Boyle: Mouse tgecbumwe aha nite e Bey acy ate Gia eee Ve de Be ee waa 106 boylei, Peromyscus ........ 0.0. cece cee cece ene ee eenees 106 Rrachylagus, Subgenus .... 1... ee ee 194 brevinasus, Porognathus ..0:i.eese2e gy esse aes vavespes .163 Broad headed Pocket Gopher ........... 60.2... e eae. .146 Nosed, ORUMK Vols. adtarta tate eee wee Git eater eekad pes ste 239 tailed. Beaver cs..46 sash WARS aes oe ROE RP Re eae es 96 Browal- COMGIT ct e ade de Mie eed op eate ded poe eee aawss 209 Rigty 2ekeuca ie. Widecpem hu bray alee ita eee anita Moe kea et biter ps enter 100 brownl, Felis aztecus ..... 0 ....0c20 semen ee ence nee eee eee nee 209 ‘Brush, Hare: ASny soci rg cease pide Gedeleetend cet eekakas 193 Bachman ace. eyecgscceeee seaweed aoe eevee ed .190 ReOD. sy. BSesod. geeieaaw re dens eoeis bee «lichen 194 Rat. Desert. wwese Vier adde hs toe owe ieees: wae eer ee tent .118 Dusky-footed. 2s. acwisedeese gaccieev aac .115 Northern ..... .... ae Liat cteieen eegeepy aes 116 Intermediate 4. a-cynexaney abana dane eee ee eee 119 TRCPHO atettes, shoud Hhaad dete aads is eed hehe 119 IMIGSGILE og achareen Cokie aiicann Aine sabes ceed 122 PLE 9 decaaranadar aug aikceneranacanst aces iar oseoks Guan doe ughase USL e weseenee hela We 118 OUT MENIY -teea sion ea aah at Mc be Aotearoa GM ahi tala argc 166 DUREACOR, — -ccaldpatcg Vid eared ea dam natseceie ace bacon eas 117 Yellow etvats Setters Siagetht ese teaeueeegeen .120 XCANbUS! gic ewl oe orks Ueoe eee. Regeed dad bees Palulbrg INDEX 315 MMe TIPO: 5% uo eaiepah be ee yacinamevaosplieie mee hued 50 Cabezon Pocket Goplier . ....05.sie.kecvydibarwewsyereeeees 147 Gubezne, THUUMAOMYS ar seamey cred rvsesdeiUauvuediedswans 147 WabTree aired iirc s ceca 8 ey ace tt ee ReneS bearers Ne: 56 Colitis Bat, Lie: bigveeeda inane vee ed hep eeeau a necuas 266 CHICKAREG). shy wabna a dee avidealon cole wales Sonik ROO edcaeets ek 89 Dwart Pocket Rat «snecap0c iss tev ow rar eow sues: apes 161 Elephant Seal 2. 0.0.00. cece cence cvecueuens 199 GTA Ys LO Reranch pease dh aes kA Stately ths Siac bernie ole Nhe 220 WALCO cheb otiuele tin a irs ects inane cede ne Minas eo cara wes Rani we 14 GroundySqurrrely, soda ey, o Gesee stored a hous. Saabs oud wa taeda 65 LOG Shit et tenth a te tas ons cate canta needle 186 Leal NOSed: Bate css Aid okie wi isamme sis Sagetate wld ase emalne eben Dns 276 TGUOIY 5, Bea 2254.09.48 on hea Lesa at eh eRe ee 230 (Crtellaiss “Gems: sig aco bays ea ay ees es Rae aE Se 64 @CCHE RA! uaa dicate nck wats aeletale utes liye aiale'n aoe ait lala eeincy a0 Gd AGUGIASSI ekg. wasane eae cathe ete ARO A ale OC ene eh ee 68 fisher]. 096. 2k gae aw yeas aaa W ERG Reeds 68 DelGiwOT, Raewds HEeTA ae > eRe Roe 84 SPCCIOSUS: . \Guieceatdeek Praca. Wulbedsere wees: Bad eee 79 Gallipeplas. sn paied. vets ocestcihauuti dh We acecica yng tag hon Taree ee 80 AUC tice rt nto tense Ateeis -tubdeheen Dt keane ee S2 ID VORCNSIS®: es Welk eu eee nes Pee E RSE eeee. LY 80 townsendi ochrogenys .. .....0 0.2.0... 0 cece eee cen ee 85 evotis: MYVOUS y4cesc5 degen iee Weta Sea Eeecees 267 Evotomys. Genus ...... 0 2.2.5 cece ee eee eee .. 124 CHULOrMIGUS clic wSR Rates Mane. dddeard ..124 MiAZAIMAS “a4 ewes Sheek. ok ede eee i, Wakeandnee-e eles oe 125 obscurus .. Sa. aeale Gaede eljaais heen reece babes s 125 exilis. Dipodomys merriami ...............0. 000.2000 cee eee 160 fallax: Peroonathus: oy 4ssores eve Gee se Mee ban ees Ore sees 169 pallidus. Perognathus ............. 0.06. c ee eee nee eee 171 fasciatus pallescens. Lynx ...........-.. 0.0... cece eee eee eee 212 Felidae. Mamily ic. caae acess bbe eee ties dee ees ate 207 Meliss “Genus 214.8 Sh0-c4nces dd ate ee ankles ae wales ANN .207 AzteCUs DYOWM aurcine he twee dae Mea weou ey new hee . 209 hippolestes olympus ...........0-. 0.00 c cece cece eee eee eee 208 femoralis. Perognathus ........... 00000 c cece eee eee cee eee 172 274 femorosaceus. Nyctinomops ........-....0 0.00 e eee cee eee 322 CALIFORNIA MAMMALS Peres Onder: s:3.62 Su a ein alee Saree hE Dh ladets Sane ee 196 Biber: Genus: ssc0s. cacgaaihd tea ieedete id eideweiacavepe eee 1382 zibethicus pallidus. aici e eau ew cima ake ends ara dawee FORE 132 Finback Whale. Oregon ......... 0... cee nee 20 Finner Whale. Sharp-headed............0 0c... e eee eee eee 22 Fisher Ground Squirrel... 2.0.2... 0.02005. ce 08 cece ne eee 68 RAGING? auiabetit, dehcmade ite tates Behan a odalarhd home nd adel as 244 Pocket-Gopher s.g...0se-0s3 dar havie dpe Sa tee e meee: 147 fisheri. Citellus beecheyi ............ 00.0002 cece eee ee 68 Themomys' fU8CUS:-su6sy avers oe heer ee ee sees eae e 147 Fissipedia, Suborder ........ 0.0... ccc ce eee ees 207 fiaviventer. Marmota ........--. 00.002: e eee eee eee eee 63 Flying Squirrel. Klamath: . 2.0.6. ¢¢6:54 c9e0ee0. sees es bares 91 Dal Bernardino .i2c.ee Wek ie eda, SesdGeuawind waeaue scl 91 ptephens actor. pigibeeuvenes. AMeteu. Alaened od 92 formosus. Perognathus ............0.0 cece cee ee ee eens 167 BOs; Black. — as22h4eodetean oa0 ie Gedo lata Games, agence 244 Calitornia Gay. svaseverweeeaes: vad Geel ee ead 220 Cascade Mountaia gece de oew dnd be eee dees Hewes 218 OYOSS cauh He deep oe eenh RRC ae Ree 1 od-o aR AOI Ree 219 High: Sierta, aes k teat: SERRE Geass 218 TiGWG-CAnEd! aici Pew eaGw ayntenleatedia% Saws rend iitias 217 San Clemente Island s.ccsces.eend sesh obackea Sees 929 NAT OMG UTM Sacer .1387 Broad-headed Pocket ......0 . 2. eee ce ce eee 146 Cabezon Pockeéb .ts.2e nent oeeeSeskiesee: “EP ebake Eee ces 147 @alifornia: ROCKED <0. 6 baw eeee ease one ak- eae Lomas 139 Higher “Pockéts 2.05 wesas eo etetee beGla eee eke ... 147 Brésno. Poke)». cocsceycce ee ee BAA a lee 147 Golden. Pocket: 2: Gato cacuc ew te Cite Bae wate ewes 138 Mountain Pocket: 2ccssvinae. Qikereidueuas. Yaeedanes 136 Owen Valley Pocket ........... 0:0: ee eee cee cane eee ee 147 Pallid PoGkéti Acs toieakexedatened inte CO Shae eee 1387 Pinewoods Pocket. cccecoce sche eh we ewe eee ewe ee dane 137 Red. Blut Poeketeucs.0024 wancaveneeeaneas Waele Howe wale es 146 San: Joaquin Pockek sc%-saeee. sider Bea e see EW aoe eek Te 146 Southern: Pockets .cccececu ace viead dh awteheaisa shrew eos oa davamandeeas 145 Tawiiv Pocket iwiwe heisuaghoisaindageree epee date saa 135 B24 CALIFORNIA MAMMALS grammurus, Citellus ..... ewes. “Bieta. Gakeeae is eseeee 69 Grampus. Genus ......... Sikere. ibe eer Casehtier Sine eaneten 39 Comins 2. yeas. egeeeeeeneee. ieextieouar. “ees 40 GrISUS': A Sayed weewiaews Ge AERA IAARe- aed 40 ‘Grasshopper-Mouse. Long-tailed ...........00 2.00.0 222 e eee 103 San Bernardin 340.4% ccusieeerns fesse Yewed iva verse 101 EWISTES . 23a toatets uhhh hredeieh memdsa: aanee .103 Yuiid). «dic. ideo de: Grdee. Wee tie eee ee .102 Gray Fox. California ......0.000640 0 cance ce hed eeedwem eae 220 IVER 9 132 yb 4 heeds ee Sahar Bee Heed Ve See peees 219 TOWMSENG:. “cece et Awenleo ues. Kea ease .112 Pocket- Mouse: iy agicacuaiaic eae i eden a ing ies aaah oar es 167 loneieandus. Onvehomys torridus ................005- 153 Reithiodontowiys: gecadec syeuy Geka cdacdaew cages ple longierus. Myotis ligifugus 6.0.6.0 fe eee 26d Ionwimembris. Perognathus ... 2.0.0... eee cece eee 167 Incifueus lonvierus. Myotis 6.0.2... 02 ee c eee eee 265 Litinpnosed: Bathe og0ccds Gyiueasiediyeehepedec aesed 265 [UStiig2 UO: 556 Se eete Reta heel. Uapereas dae eee 29 Data GETS hoy hg Sy nreneeaica poeesa ee Ol Ce Od ed nes NUOLGNISIS! eit RUS Mba tdom es Saeeh 233 BOUWONN: npBa Gee Tee el, Odile ol eae ie tea ih erent iar a a .234 TiWth eG le (GOS) gee cpeeseateetiaaec le tabs Ra eek Oe 245 VISION ENergueMNOS 2.2... ee eee ee eee 245 Litt, Subtamly s.caceces ease ¢easdeon Seas 232 I GPS NEP EIS: Taba Socsscane ce iapedeG so bb acd aunt Oweralnats acaetedcbae kes 22 Ivelli, Sorex tenellus ....00 2.0... eee ee 253 SNe ENUISS edges’, Siete, aaGpegeatanescocodautacedeaties 209 CMs ore edas. Gedpayead axed cin JR a ate RMS dees eeueln 212 CMIMIGUS? (A 2 eee eR semis, Cpteon cu sllde itl ates than crate tone | 210 fasciatus pallescens Bde Nasties tae p oes Sin we oy estat 212 [QS aoe ele analiee alent Sasa Se eee Ae ease. Oleimeetocs .210 NOTICING Gott etteaas. Bigte ae udey les cae neara, Eo 212 Mtenoeephalus: PRYSeter 24a Giawenecareodgyy daedaw shes 27 naterotis, Neotoma fuscipes occ eee 116 palleseens. Corynorhinus ... .....0.....00.... cee. .265 Vulpes ..... Rives wipes. of eetid aden cea mhtom Matinee, 25 Mocretolagus. Subeenus oo... 0.2... 186 raelatim. Kuderma INDEX 329 inagruderensis. Perognathus parvus...........0.000cecen vues 166 Me OPS. AO ON Lit earns Leek ose yaiedadr eaves leak eas 95, Mephitis oceidentalis 00... ee cee ee eee sees 238 Neiirotrichus. @ibD81- access ober amed eeeadsbaienaenadanes 260 Manin alias Classi Pisekuue tee bees 234. Mendocino: MOUSE” sajcuicee hoc atte eae ae oe Shine ora 106: Mephitis; Genus dete tccactatacass dsr aiciot saan demeiencd 236. OSEOR - Satin reg bee As He BER AEE OLR OE ROE OEE RED 239 OCCIUGHEAIIS? gp wire neat Goosaiastis Ho euch eons hoe ed aes 236 GIR “cnlested eth-sas hii cla ea tote Rees 12 adil nods ade atey2OO MAYOR sa Fis ode oe aetna ree el om BRL ane Aca 238 platyrhinus copes cess Shas. A ptt dmuma Sh nade a So hae 239 Merriam Chipmunk ......... eg A tsigeo by aes eat areas de te Oe 84. 330 CALIFORNIA MAMMALS merriami. EutamiaS ..........5.00 cee eee eee tees . st éxilis, DipodOMyS 2 ..c.c0csecese severe te eet eee dee Sa 160 nitratoides. Dipodomys ...............0-0200-. ce eee . 160 meiratus: DipodOmiys! ss wvenumcwe steewak sagen Get caweeted 160 parvus, .DIpOdOniVS 6.5 see ddeg ees are tee doneeEh Pe eawege 159 simiolus. Dipodomys ........... 00000500 c eee eee ee neces 158 Meésquit! Brush: Rat: .c6e2ecnd bee Gaede epee eoieed esd taede es 122 MVERICANUS; ‘CANIS te:4¢%- Sees. Geaseeiencieee Yass Sere’ 216 Microchiroptera. Suborder ..........0.0. 000000 c eee tee 262 Microdipodops. Genus ............0 cece e cece eee eee 160 CaltOrmicus. © cows chan dasety saw vee aeeae sab Maw Gees 161 MNCHOPS: -RELORIP US! eaigr sche cinsemg Gomes Ae ae lerdal ecg te dea a 155 Mierotine. Subfamily 2.0.0.0... fee eee 122 Mirerotiss: Gers: sist scadn Suche a desk ave ih ih 2am hen ee hee aoe as slate Ae AO 126 BMOUSHCEPS: « Gicidog Peale ati a de LRG RNR ee de eee Re 130 CAULOMMICUS: a. -dvuiey.dauteutseaes aon aiboni edo 61 MONTELEY eHsis: Sorex asx wuss w veiw ewer e 3ohewelegeeees 251 Monterey Shrew ....... 00.0... ccc cece cee eee tee eee e eens 251 monticolus, Thomomys ...........00 00 cece cece cee e eee 136 pinetorum. Thomomys ..... 0 20... 0 cece e eee eee eee eee 137 WOndax, MIGKOUIS c/s Sass iad bade SBOE ES. Lads} Geena 130 Mountain Beaver. California ...........0... 00000. 94 Pont REYES aso soie ace ais Ae Seva alu tm enact: wlawun Dawtendaes 95 WOVOTES Hoses ca! Ghedec lo pie At ite hee ean ih ada te ated add) 215 GAT! aie. sletcntd ala wagatig ge touts wedi wiavanarln dua lthaa ans ie os eral eats 61 TGV ORE iadoe Se teaseta = Geiger te nO aa iane es SAR Ree aso oe 269 Hemmine-MOusé. wae. beiese. sh ve stwe neces a eey eres baka eay 123 Pocket:Gophieh ..c.a2snin cgay tare Aiea ak ome nue 136 MTC RIOS2 aeceey da ate 5 ila rh alk I Sis ane Oe ehh he a i Oo 57 Weeasel, saucsucder din the pada Se eee Rae eee oh ee 247 Mount Lyell Shrew ........... 0.00050 cee cee eee ee ees 253 Magruder Pocket-Mouse ...........-...-. 000000 -005- .166 Pittos Chipmunk \..0%--sesnap Sneath eee OR eae eS 80 Mouse. Allen Pocket ... 0 2.2... cee cece ee eee 172 JUMPING: 22.0 ¢sua ewan PAR e a eel evar eset ne tee UE Eas 175 ‘Bailey Meadow yo iscuisieG wake Pee Meee Deke ee 130 Banos: Pocket siesta seidedeimcasiwarreeds aa dereiads .163 Big:@ared: occ wav kines Sa eee dew eee de eee g eaey eae 106 BOvle:: ct usk. setonsoeacaa heuurnige ane, aera 106 California, 20. ees: Sees SUSESRODLGeR eaten os 107 MeadOw aga cana ieeicbiedhecanek Seeded Wee 127 Pocket: niece: Mako lst ae Cec atenads in eee Gee eee ae NS 172 Medehacked! az, cxcdtesme Hele wawa der Gueeeeed Heel oe Mad we 125 Cantankerous Meadow ........-.0 00 cece cece eee tenes 130 @heniisal -.2c64-. -pesbeedtee-tedh hess Seat cece ne Ae 108 Coast: JUMPING oak ein nee Siouuey vere ees 176 Meadow: scaleouraes Soe Wwe ob ase Aca beara ere eis 129 Colorado Desert Pocket .168 332 CALIFORNIA MAMMALS ALGNSE. COMMON gotcuceuwi area sei we (eee eae aceko aged 10L Cowes “Pock@h ..oue use eee ed Pt ER Ae See 165 Crater Lake Red-backed..............0. 0000. c eee eee eee 125 Dark Pocket cuseseteeaeedessee se etse aes Ree Suniel Te WWesert. Deer cs. oad ea Aer ies Aka Sn ee BBE 104 FRARVESE: ic. nidaeegiorceahadatatuaegintedasder eis 113 N@HdOW - Gaaunies SeaeReseaee, “isgeeaeesaakaba eas 130 DDUIZURE: . gah Becks. wae nas Rael) cxea rd wow tena wader (a aaeee 110 Dusky Redebacked: 2.06: ten aeees Sewadd. Baal das 125 Diuteer Meadow 02. ceene Aadewaadioaee soe tacee Barco -126 Gammel’, “seks. Partie agate eeeaokas Skea nite teen alee ess 103 (ireat Basin Pocket sie. “Gieraig!. Ted ence here typ leer 165 LORIE. 3 Sse Books 8 Peer nad ood hak Fas ROSE .109 FLCRVOH:, -aacdloeieem aoe o aehxey cans sap exe Wa eG a ees Oe ee 110 Fleanaitih, Harvest? oy ccaa ac naa hacen Qeaesne wowace Sia aks 113 Lone- Tailed Grasshopper 244 caccsneyqden. eins esce naaeeons 103 FLArVyeste). spaiGawadlagalinee: Gdns deat eae acta .. 137 perpes. Thomomys perpallidus ........... ...-. 2.0... .. 138 pha: Aplodontiay stun vacn caus Pokws a ete ern 95 Phenacomys. Genus ..............-. seb te Braces oars econ 123 albIPes:: noe. Sasa Wk very ooh be Fuh ee td aes ese deeae ee eens 123 Gropiilis oc: acre see as ahs «bss awh nee eee ees 123 phenaxy Spilogalé: wis s.as sas kaa eats ceee eke wae emes oe 240 Phocrena. Genus communis Phoca. Genus richardii geronimensis Phocide. Family Phocine. Subfamily Phyllostomatide. Family physalus velifera. Balenoptera Physeter. Genus macrocephalus Physeteride. Family Physeterine. Subfamily Ficket-pin pictus. Eutamias Pika. Sierra Nevada Pine Marten. Pacific pinetorum. Thomomys monticolus Pinewoods Pocket-Gopher TI'innepedia. Suborder Pipistrellus. Genus hesperus platyrhinus. Mephitis .... Pocketed Bat Pocket-Gopher. Alpine ............. Broad-headed Cabezon California Fisher Fresno Golden Mountain Owen Valley Pallid Pinewoods Red Bluff San Joaquin Southern Tawny . 197 339 34 34 197 198 197 197 276: CALIFORNIA MAMMALS WONGCAIS wae: Sia edhe Bele BNO re etc Pocket-Mouse: Alley js2sccce Sa pene heee a pase OR ee .172 BANOS. if-aetie, Soin oar eee eeaen: oda se Awe 163 California: sbadadshsen ote ea vd seu e ease le oboe 172 Colorade: Desert: x jn caacs as Gave: nu soee eed Hees 168 GOUES” sarees’. naeaeoed othe ies oil Gee daha aaehees 165 Darke ea cheiedacegen, (oeeukt ethan we Rees Pee ew: 172 (Great BASIN. su-glatedeeg Gaswon. dbneusaeaadaiadewen .165 Tone tailed: -sswewses> wads Reale eee ies Se eee 167 Mount: Maerid@r wed sa a Gases 4 weld oale ae Wellies .. 166 PUTS -eetre aes dios AT Nees 5 ut De ahi) Dek ches ay hh dont a Fools 171 Pamaiminte oe ieleteecnk Sale aod el haiee ele 162 DANG: aGevene oss cde ea lwae de SOG ay tae deen a eee 163 Sail. Diego) .a45¥ yyaede Wee cases aw Meee eee wee tae eee 164 Pal VOAGUIN-: saecwng td) beaeee- daahuds Seake 167 SHORCAREd!) utapdek eA Aero twtn Beales Baie .169 MOSEd:> 2yseee He bees Hees Meee eee Gees Nodes . 168 SPU greece ale ee Aida Wah latnteaue ale enti, Adib Sooo 173 SECBHENS:: Waguwissvdnduaowcmeds oe we ee eee .169 PEG tales. esis c0e, senda ay sea clea Rods ae esi ao ae ode 168 WHIECARE asd neden tag ded oes Caeegebedindeaty .166 Pocket: Hat, Big e142 0sex as sawed sie ea da Succes og ieee aul care 153 CaliioMmmids Gains acacawiad” -durgadeeansts Sealahaes 155 UOAWAT HE? gett, Goseedi crs h odes wettest Up seas cd Danas ule ale Sakai 161 COlSab « 2S tend atsane- ieee? «Sha tae ee hod ata eee eee « 156 DCSEM) -pavotew cee edad ieee Ge Reg hee. BEES 156 SALES} cage sete vg uch sea N OR ae S0e hE eA are ee hy 161 GaIMDEl | wee Pasha tae bial sat Reed aia etl ede ge cel Baa elal> eee 150 GOLUEN:- Grice’, Gyrtgedadiers weeds! Chanda wanes tang Ata a eneah ey 150 Coleen: 33 Se eek pe Se A Se Oe ae ed 154 IOF: tthe cree cbt eae Ota ee et deal Pee Oi ned acca 155 Keeler ... 0 ...... prs. i hacine n atis Manta ty os .160 ICAU aieaaihins AREY. Atentm eign ds: adie Rerd Bin Ler teabead df ae aa tbalA 3 160 IMDM.) «eee te.. Selecta Seale sae erncel Neva eeneces Ma ues ctl’ 158 Pane mine ag Gide ees aa a ete See de - Wad Geran aoe ae ee 154 Pitt BermardimG. isu oie eea hee sew eee abweks aecieme 159 peste HOV( Gia) Cc 11 b Acuna nner a CaP ane CED yh na Ten 153 ILLCHLOM™ oicer weit. Rebates Marawisd deat eras 154 Tulare ..... Sine nis Gandhi use pe ivecust Ud, ected 160 Point Reyes Mountain Beaver .........0.0..00 000.0202 eee 95 INDEX 341 Porcupiie. Western: 1205 edie sacasewenweeiereede Seeiees 178 TENSE red sae Sar Dai gece eel ace es Vio a ssc 34 Northern Right Whale ...... Se CP EET Ue nT ET 33 POET! on sladdnarbade chau tomer lc nek. alos sol gles 40 PTOI IU ceases iene ly oat ee ks fade (et eee) pascal ELA RE: MOLCRRAD, 3h. c Gu usGn ce sae ek’ Capel mcaneees | fuk tunnel veteran 185 Prreer Chipmiunls- geek gan elated Sou S a Gb eee daa 84 pricei. Eutamias hindsi ........... 0.0... cece ccc eeeeeueee 84 Pranvates, (Ond Gx =v cesace ad tates nates Salta wa dead ododeeR 2.208 Procyon: Gens accss ka wena ad secty ae Medecine vad bp ou 225 alias: kyo aacndet esl mum acter nce lees ern de) ast Bek hel ae ea ou ct 227 SOLA .aGrnSsogawhetaerenag okt: wince eee Ge ACh alata ede OUR tAl cA acta 225 DACINGCAR - hugh ae sigh teehee ech inne ent Nottn ttn, Sle a eth, Ba 227 Procyonida:, Panitly: 4.4. > dvd” Geta datye See GA Ria Pee ed oe Sa eneke 194 Haehshi. snc gs ewe dh ie eevee bea eee eae Rome Hey 185 FIUBOPCANS, oy. JENS EG eb aout A alaaee, Wiaae aay ai 28S ACK. wageesg tt Teh het ort aa e ada Solel evs ....186 Wrhitetatled, eccccGacneseesea aut cactak seer aha od Be 186 SHO WSOC Put stent ea iy con. nae oleae eal Ga tad: Bie Be 186 Raecoon: Calitornia. 4+-4+4 yee: 84. Faaw ver. as eeee ies kee ey ea ee 225 WV CSOR E22 acts tie > oataiar oN Oa MAS Ghose We wae ele eee 227 PAGING: cfm Motes spsitana ei Dae ated ia aersheleny Mas carsd kote vs 227 ramona. Onychomys torridus ...............00 00. e ee eee 101 raptor. Bassariscus astutus .........-2. cee eee 22 342 CALIFORNIA MAMMALS Rat, NSHCOlOPEN .cccciyadencee bee eey So dG GR S Edoadegenaels 114 Bigs POCKEt: i waarmee va eleanor ede eau ates nen pes de 153 Black! seguciseiiehdelvinnd thio Guat eee, Baden ee ....100 IBVOWING le douwa hewmmaetihe . ia esiice eh lage hea havatns 100 California Dwarf Pocket .................. ie eaten nee 161 ROCKGIY cca Sudehiacadiee Setar sO. Sack 155 Colusa: Pocket a8) Jpn ae bee Beds seh ee eee ee eye 156 Desert: ROCKS: enuitak san wend a add wie eons eran cies LOG BAIS. Gerace Mine. a patae te edea tee Acacia ence Go ds 11s Dusky-footed Brush- .... ...........0 0 «2 eae come wae LTD INGRTHGPH, -2tcce Geigesdeoen Baa Be eae egans Cece 116 tambél Pockét- sy vevaceensesa aYaaes ee, Gees cagelou Goldman. Pockets: 2... eases Gewerays caenae stein ..154 Intermediate Brush- ........... Dem. «sD: ia, Ld Inv; POCK Ct Sian ces ate MORRO MERE E had 155 IWWeeler Poeket- .......0.00......... S nbGee. dete sds LOW Kern Brush- 2... 222.0. esesees eleck ee deeawr kere: 119 Iseast Pocket -ggccbacewdevascaeee aoheanieeee cas ena 60 MES te IB PUSH: avscn sly dg teches tes Hale to? Goi eho eal gts SO Sie aaron 158 PNUTAVANE seg kena ender: “bpp gs. Ueeg ach wand Agen anes ener cay 100 Pale Briss. 2 s.c0uie. Aka adkewer > da wewa>mamasead woadasue 118 Panamint Pocket- .............. diate, avtedochennetonaa 154 san Bernardino Pocket- .. 7’ ........ 02.0 .0.0 000 c eee ee 159 Santa Cruz Pocket~ c.ccc.ceceee cee ee aun ees .153 moutherm: Briishs 26. wi neriawe eyes teawakietaniee ns .116 treater Brush scent akasaansuci sete oiGedleddaes 117 ROCKGL’. - saciass soalalactuede, Qlineae coyneoemmaes. “Aaa a 154 Milarey (Pockets: acces ces. ues Gaus ue es Gel oe alu .160 Western Cotten 0 vo... ee. See aes .11) NVEIGED” lies. Goce ennac se tous cies mnie wel neh OR ahem coke .100 Xantus Brush Se Daakes tandaats Nim i Sawneee. Ba Sent 117 Mellow Brush snes dade. (Anse Geek. Biedda: e betes. eis: 120 lied-hbacked-Mouse. California ....0..........005. Meco 7 Ge ase 124 CURNHOESARE:c44. coded. 2s aduy doves Raided Shaws ea pees 12 DISIe. sieves BARR, Rtas Mane ene ee ian ancadnes aN Aa rd nade 125 HeGhyp Mas OT WMS: 20 ce oe Sed G Cndue BAA era eee Reo 35 Red Bluff Poecket-Gopher 6. w. wee. eee 146 Bat Westen auch 208% eases ooeisdbar el dedeoa aang 271 Tiger re, Ge gehase, sane se gh celui ie eke e, . 209 Redwood Chieckaree .. 00... 00.060 0 cee cee cee bees 90 CHM. ca@endrtedcids wailede, Molo Wo che tell te 8) INDEX 343 Redwood. Lemming Mouse ..ie. secesas accede ia ubaaeecunds 123 WIESE) | rss ovata vests statics geane dlcere Sie eh patie doa ieee Hela, 247 Hertheocentoniys, SWS, gors-bsiw iwe wan Hews Gae dome nae doa yee 111 IAMS HEWSIS rxscsig eed yAieredsa ose see Ad les easy ancredte Raneead 113 LONSIGAUGUS™ .o-.03. db oes biked Shoei Gam eae eee eeteese 112 megalestris deserti .......00 0.00 cece ce cece eee e eee 1138 Rhachianectes. Genus ............. 0000 cece eee ee eee eeeees 14 See Wuuetssuweempeceamnenes Soeonc ees eameee nes 14 richardii geronimensis. Phoca ............0 00000. ce eevee eee 198 INO GHy. sank ti nee toh inact nota ces marae cone tact Seance 197 Richardson” Hare: evi a ceca Ge wae. Made baewee bees 187 michardsoni, Liepus? gcciyhe otopeeeas gio sal weelwa Seeks aves 187 Right: Whale, “Pacitie? «rica sachawes sw eeeuina keane oe goss 13 Porpoise. Northern ..........0 0.00 cece cece cee eens 33 Ring-tailed Cat. California............00..000000 0. cece eee 224 Rocky Mountain Bighorn .............. 0.0.0 cece cence es 57 LOdentS» auapsu-teaGAcieanien eid aaa Reto ead racked Beton me 62 FOOSEVElt is © CL VUS 5. b2s.cth tatters Ue ice a baex eee aoe ie ee 46 Roosevelt Wapiti ......... 0... cc cece eee ete cence nes 46 Round-tailed Ground Squirrel .............0......0220005. 69 rubidus. Peromyscus oreaS ......... 0. ccc cee eee ee 106 RUA TATIES® - cara dieses email ae Rageae Ale. iA Bee aaa Qe ade Wh Gea anten 45 Sam Bernardino Bat vsccesi de cose et eee eines oi een ea ee gages 270 Chipmunk (ocsveueesyeeasieed at eeees enero aeeed 79 Pocket-Rat: sxuelwawueaien io Foslasiedine ceweaneid ain 158 Ground Squetel>, aa. case Meek oide sere iebaebeues 73 Grasshopper-Mouse ww. eee eee 101 WMIVING SQWITTElL sit cacesaae Magaky science edd 91 San Clemente Island WOx 4: os e0vcasacceetesee deere scaw ae 222 DVIGUISG?. Uole. WAU e Roache ces. site dra seen cus dann deiccpsusus SaeAneet ae 105 San Diego Pocket-Mouse ......... 0.0.00 cee eee e cee eee 164 Sand | Pocket-Miouse: so ..02:t eacsea Meee ses: See ses Sees ees 163 San Geronimo Harbor Seal ............. 0.02 e eee eee eee ee 198 San Joaquin -HOx 7 depo bide es Uda ee Sete adeno twee 218 Pocket-Gopher «0 sinew .sate guava ehewwee Saeed eae s 146 IMGUSE? wcti!. Gdtek. oRetehetioud: oie trae bs See e anda ol 167 San Miguel Island Fox. 22.03 ieeeee Seeaene eyerevaneaseea e221 Santa Catalina Island Fox ...........-- 000. e eee eee RRB Santa Cruze. Uroeyon littoralis ......... 0.00. eee eee 229 Santa Cruz Island Fox ....... 0.00 ccc cece ee tee eeeee ee eed 158 Pocket-Rat «se ee eee 344 CALIFORNIA MAMMALS Seplens ameriGiits: Hotite .eaiae skecy svaresdureras Sens 279 saturatus. Myotis vumanensis 2.0.00... 0.0002 cee ee eee 267 HCAPAIUS: “GENUS: -scet4 Spscae eee Wiaieedey BES e HAGE SL ekS 255 ealifornicus ke Meare eg ear. “SeaerUdheiee: Kraceeenees 256 QIENOMN: seadackwews Mie. asicelheidce. olidesreeeitca 256 truei pdethse cides! poliiady) Sods dene! hamid galt Mey Sathana townsendi Shapes as Les RARGE) eee dtr ase eaa day tee ual Iho Nee ack fata honda ee scaphiotus. Odocoileus columbianus .........00 cee. eee eee eee o4 scummon;: Blacktish cacca ernie Aiaee Ses Seren Soe s eee 38 seammoni. Globicephalus .... 00.0006. fee eee ee 38 schisticéps, (OChOtOnd: 442.5 sa rasaes Bees Wa eee hed eeeee nis 181 scinpeiisis: MICHOMIS aawnikedea seca. “AagGhee caveadue wanes .130 Senuindes, Hamil ¥" sot.at wenger ae Pa eel nna eae 62 Sermroepterus: Genus: #...¢s:eser ch hae eee ve ras Sheree eetou 91 alpinus: CHlf0rniews 1. nccad een seen me ee eee ewe neo 91 laniathensisi wecweids Bideee emis as Edewee esas 91 OveMOMUS SHEPHENS) -.4cdesaw anes es SY we ee ew eee e 92 S@UiS. (GENUS: 2acede etereeaeedarote chidn peels cea peed bi 86 donelassi albulimbatus .2asee syedo8 sede ey eeewak sade eee 89 MOH pILOSUS?. seseacgydiesies She aaa: aed une A Bhasin oan 90 UTISCUSS hits. “Redan Sadertakess eeu ameagr See haat ee teehee a 86 aNtHONy1, yeaea-g hy idi ee eeeee e e 87 TIO PES: cpisean- waded Weak Maeh dawg ate ma aan aie 87 Seal, Calvtornia: Blephant ..¢.en%eiwexsewe le oe weed Geass 199 Guadaloupe Wl acc. aiden Hadeede eRe awa Sree ME 206 NOPE A spades. Geekiandsiacdghvetee Sea aes £205 Paeitie; Har bet cys. yeas eee eee Se eee hekocebeeale’ 197 San Geronimo Harbor .... 0 22.2.5 cece cece ee beens .198 Southern Hut eeu. Amadeo Ghee ontosecd pei su wees 206 ROG wou. sciahadwae, Gates » nese Rane heasins. Mauvaanin meneens coated Te tea 196 Earless ... 0 ...... Longe. ipctshet de dc tak he Nu eg hale oj tas aR OG 197 Sea Lion. California Wet. See ate mes Keesha ark .201 SUCMar aiginewawwaeivln dense Oigeacd aoe meds Saeed wd 205 senex. Eutamias quadrimaculatus ...............00 ..-.. . 83 mea Otter, Southern: 4 c:ccieancag)ouveg dutlarcdee Kesee/e dM Le eh ome 232 Sharp headed Finner Whale ..... dethe,, sa.3eekndrcuraweaee earn wardews ek 239 IWestern: SpOtted, aicscaia ete eid cis nuwtt ottie dete giat ialele Wace aba lal acer alae 240 Snowshoe Rabbit ......... fe dosti Mats Ane eset Ose awe hd Satindcs 186 sola. Neotoma desertorum ....... 0.0.0 ccc eects 119 sonora. Lutra canadensis ........... 0.0. c eee eee ee enn ee 234 SonoraOtter: skc-esieke ede ain Sows bee ee oe Re 234 Sorecids. Mamily 0 .cacesnVoiedsurge sab bina aceon see eaceas 249 346 CALIFORNIA MAMMALS OLEK 7 GENUS Ao reks Ni aan kets fy Arte nied nwa eG ees 249 AMIOAINUSS ora die aeh ce eds Red tS ih Maas tite dt Od 250 DENAITEL 25. wees ware ee ease ee ean a readme 255 CHIITORHICMS: 42a. aula ee. eae Reh. das torneo vannee 252 MIGULETEVEDSIS., dc .cs Sd euuaeideeu ns wens Seeded Sade 251 ‘OWSGUTMS. = dane. Gastaieletace eed a iene theta eke deans atin whee 251 “ORMALUIS) -Gxtaces Bate h ened Sa ibe, eee eee Shee eee og PACIICUS: -—¢wtetedk suas Mew ed eos ode eos were. 204 *PAlUStris: WavIOAlOR” doce Qacmtenla. wcerdnceuse” aie Mane Bante dagnea pase 254 tenellus..... fe ge erred sla dt Sone dhl aa les ik la read OD) yell tcc, eect SAR eee atu ake mea ahaa weeeey 253 TNVOPS sab o eet tkaddkin Aikeee Soda Se teeta 253 VACTANS! <25.s ag nw od ee Eee al ee GLa Ae ee owe e ek 250 Southern Black-tailed Deer ............0 .2 ee eee eee eee ot Brishehat: Paved "wuts lad Wiegand nesta ifs Ris oP asa ie 116 Galitornia, Skulk. 25: ccc: gira eeed Sas aite ee ade WERE SS 239 Pocket-Gopher > osaa.ciiae shag ceeds Rew sua Ae a ea 145 meaOtWer> Siwese Eegemeweres ee phere awiewetg aes 2232 speciosus callipeplus. Eutamias ..................2..0-.0005. 80 Figteiias: .cacktes!, Adiukte dN lads: seats Boe end dona eds 79 frater, Mibaniids -saceeke. sae Ye reer ayo Neues - 82 INVOCDSIS: -HiUtAMIAS : dened 36 DOWe ASS Wa LOUN, | 21s 8 Yohedoa weed a orayeacrs eieeann oa watees J 8 Hisher Growid: jy 2se 0836 Voie ddauke se nal ouleuek wath Oa ewe 2 B38 Gilded Ground re pociienel: “elaine Wine he tad el yee os i eee ed lw cs 91 Mohave Ground ...........0. 000 c cece ence eee eeeeenas 72 Nelsum TPOUmGl Sa diws aww mehr weds ce wna weer ecw de nek 7) Round-tailed Ground ......... 000.0. e cece eee eee eeaaes 69 Pan Denier ing lyin os: bse yw sew Xvabiacenedewanwes 91 Ground) asia tae sae ce cacy ckcarh onc a Mow ei ah eaiaee 73 mbephenss Myint sys seer dere eee aareeaeaamecnnesaaee 92 GTOUNIG © “aaiispinne eis cies arene Gitane Weneteata und Saget a ee 71 Mrinity Ground. 2 24 sivas vedugeedsain ee aauceeree sw ecekow eee 74 Starved Rab da mgdee helen elo See ile oe Sa ia Toth at dclon 183 Stearnsl. Grampus 22. e5:4) enews veda vida ps eed seae eau des 40 tela Sea Mons e235 ed oe os ery eel aan en els On Oe 205 Stephens Flying Squirrel .......... Joo e cece eee eee eee 92 Ground Squirrel 222s. ag dees Si huaseatia ese ee new eee 71 POCKEE sMOUSES sc09 hey teed citer tee that sian tied Sales dah aliahs, 169 stephensi. Citellus mollis .........0...000 0.000 e cece ee eee ele POrOoTa THUS: (ear patois chet eevee aishiak oat aatem Saat ants 169 Peromyscus eremicus ....... 0.0.0.0 cece cece eee n eee 109 Sciuropterus oregonensis ....0 66... ee ce eee eee 92 Straight-finned Killer ..... 0.0... ccc ccc eee ees 35 Streator Brush-Rat ..i. 60s esas cee ee ne chu sea oe cw eke es 117 IPOCKCTERAG) ahh pal tes Behe hts oe el cea teandedas Che decayed 154 streatori. Neotoma fuscipes ..... 0 22.2... eee eee eee 117 ‘Perodipus ..... ROW, teh QWes Aw hie. ale atoleetins 154 SiTiped POrpolse: 2 a4ak, usar desde ey wees hate erar ees 40 sulfureous. Sibbaldius ............0 0.060 cece ce eee ees 24 Sulphur-bottomed Whale ............. 00... ee eee 24 Sylvilagus. SUbSENUS: sca 05 See Re ac Sa B ew HE TESS 190 Mal pidlee : Maqnd ly? <3 2S snes escieys wie aiavecdin’ acdsee’. gihepia. cla Spiga seas 256 Vamiasciurus. Subgenus ......... 0.00 cee cee cece ee eee 89 Tawny Poeket-Gophet sui sexe¢ sass oe wR ee Paw eV ELAS 135 axideds Genus ichiw. aiiieowrgeiaddeswies aati sein wneagary 234 Caxus: NES ECbae wis eecdn Seek wt esas Gdeeiee dinate ness 235 taxus neglecta. Taxidea .. 0... 0 fee ee eee ee vee eee ee 235 teliotis. Lasiurus borealis ..............--...0-0005 werimty aol. tenellus. Sorex ............ eee. Oe Rah tues Seow Mele cicatens 298 Tyélli,.. -SOvEX: wed ded sds SAG a Sick sass SE ea 2yaelde MOPS! HOLEK Gea We Gse he Ly eae Ste Rsy en Gosek sees i82D8 Teonoma. Subgenus: -vasnceicueen Avecnoee saves eae we 114 tereticaudus. Citellus ......0 0.0.00 cece eee eee dye itans webienn 69 348 CALIFORNIA MAMMALS texanus clementis. Peromyscus ............00. 000 eee eee 105 deserticolus. Peromyscus .........060 0c cee c eee ete ne eee 104 gambeli. Peromyscus ........... 020 cece cence eee nee eeee 103 texianus deserticola. Lepus... 2.2.0... 00.000 c cece eee eee 187 {UlAPeNnsis; Lepus’ a veserearesde cde seater ds..eyares eee 190 Vhronmonry $i. Gem aS: cess sg Veiee 4 ated We eens ld dea telesales 135 ANPINUS Acs bees Shomder ote ioe CREE a eet eared 4 137 aveulavis an. eee seneieesseseee Faw aed ee omeeesee ey 146 DASCAMIS> onan Waganihwie dk ak ERAS owing eee, Ranken’ 147 Dottie? -gaeneet Gupe coe Redes allots th 139 palles@ens Qadaaakeoieubinse- oacash aeataeone sees 145 cabazone Sine. jdteneniak bhee he Tae meee eas 147 UNIS ATIOP CATS. wen a eis ah ad ees aber has vue Bs aaa OSS 135 PUSCHS. “MSN Anis. ve aceehaicuee, Gear enarhatngu wea 147 IAMECDS Meee! “aieeha- te cae eee eee es pai teh So cdc tke 146 lenvegdlons Mays: sates en 6 ea eAR eased Vaan ees 146 MVOUMCOMIS whee Jeet haat echadead artes He sedeleben 136 PTH SLOT UTIEA ct aad aoe Sea sib adl eae eens eras ae “yates eet Taty 137 Ai VOLAPIIS cane ies tvith beoy.aesys atsaeg em deed wean ageonceaes Gok y Geb heh eae ar ea 147 PerpaliUss vse cee ARemkess whale teeta crouin hake ay ha ah eee ES eae ATG eee eanele 217 PML GUS©