=Phoca vitulina richardii= (Gray)

Hair seal or harbor seal

_Halicyon richardii_ Gray, Proc. Zoöl. Soc. London, p. 28, 1864.

_Phoca richardii_ Allen, Bull. Amer. Mus. Nat. Hist., 16:491,

December 12, 1902.

_Phoca richardii richardii_ Miller, U. S. Nat. Mus. Bull.,

128:164, April 29, 1924.

_Phoca vitulina richardii_ Doutt, Ann. Carnegie Mus., 29:117, May

12, 1942.

_Type._--Described from a specimen obtained at the Fraser River,

British Columbia, probably on March 23, 1861, by C. B. Wood and

another obtained by Wood at Queen Charlotte Sound, British

Columbia, in 1862 (see Scheffer and Slipp, 1944: 374); type in

British Museum of Natural History.

_Distribution._--Puget Sound, the Strait of Juan De Fuca and the

coast of Washington, extending at times up the Columbia River to

The Dalles. Has been recorded in Lake Washington, Seattle (Bonham,

1942: 76).

_Description._--Adults are about 5 feet in length and weigh up to 250

pounds; males are approximately a quarter larger than females. The hair

seals differ from the sea lions and fur seals in a number of respects.

The body is widest in the midsection rather than in the chest. The neck

is short and slim. The eyes are large and there are no external ears.

The hind flippers are not reversible but are permanently directed

posteriorly. The pelage is short, stiff, and directed posteriorly. The

ground color is silver gray or yellow; usually it is yellow, blotched

and marbled with black, dusky or gray.

Hair seals range over the northern Atlantic and Pacific oceans,

occurring southward along the Pacific Coast of North America to central

Mexico. Six races are recognized by Doutt (1942: 115).

The hair seal is the common seal in Puget Sound, the Strait of Juan De

Fuca and on the ocean coast. Scheffer and Slipp (1944: 373) estimate

that 5,000 live along the coast of Washington. Hair seals are social to

some degree but are often seen singly. In Puget Sound, where there are

relatively few hauling-out areas, they rarely leave the water but on the

ocean coast they emerge to bask on the reefs. On Destruction Island,

Jefferson County, V. B. Scheffer and I watched a herd of about 20

animals that lay on a reef exposed by low tide. According to the

lighthouse keeper the reef was occupied daily by these seals. Scheffer

and Slipp (_loc. cit._, p. 388) report herds of up to 200 hair seals. In

Puget Sound 10 to 20 seals seem to be the usual number in a herd, but

occasionally there are as many as 50.

Hair seals often exhibit curiosity concerning small boats; the seals lie

in the water with only their round heads above the surface, staring at

the boat for many minutes. Constant shooting has made them shy and any

quick movement will cause them to dive; several dived instantly when I

pointed either a stick or gun at them.

Hair seals are less spectacular than sea lions. When basking on rocks

the seals are silent. When an observer is yet a long distance away the

seals raise their small heads and remain on the alert. When they take to

the water, they travel with a jerking motion. In the water one rarely

sees more than their heads. When they dive they usually sink below the

surface, never making the spectacular arching dive so typical of the sea

lions.

At Useless Bay, Whidby Island, Island County, a herd of five or six hair

seals was studied in July, 1936. These animals played and slept in the

shallow water beneath a high, forested bluff and could be watched from

the bluff above. The seals seemed to gather here in the early afternoon.

Much of their time was spent sleeping on the surface with the body in a

bowed position and drifting freely. Occasional waving of the rear

flippers kept them from drifting away. They played a great deal,

splashing, diving and swimming in circles or spirals. Occasionally one

would dive down to swim slowly along just above the bottom. At times one

would put on a sudden burst of speed, apparently in pursuit of some

fish, rarely continued for more than 30 or 40 feet after which the seal

usually rose to the surface to resume play. Never did I see one with a

fish in its mouth and these pursuits, if pursuits they were, seemed to

have been prompted more by a spirit of play than by hunger.

A young seal was kept as a pet for several weeks at Friday Harbor, San

Juan County. It was tame and affectionate but decidedly temperamental.

It demanded constant attention and whimpered, cried or moaned if left

alone. It was more active by night than by day and made a characteristic

mooing cry, which continued at intervals throughout the night. This

habit led to its eventual disposal. The temper of this young seal was

shown by its actions when it encountered strands of kelp while swimming.

If the kelp strands held back its progress it would turn back, seize the

kelp in its teeth and bite viciously. Never did it attempt to bite

persons.

The hair seal was generally thought to feed almost exclusively on

salmon, but the work of Scheffer (1928: 10-16) showed this view to be

incorrect. Of 14 hair seal stomachs examined, all of which were full,

only two contained salmon. In a later study (Scheffer and Sperry, 1931:

214-226), only two of 100 stomachs examined contained salmon. Other food

items were tomcod, flounder, sculpin, herring, shiner, hake, skate,

blenny, unidentified fish, squid, octopus, shrimp, crab and starfish. In

spite of Scheffer's work, hair seals are killed at every opportunity by

fisherman and boatman. Bounties were paid on their scalps for many

years, and more than 1,000 bounties were paid for each of several years

previous to 1930. Their small, round heads bobbing on the waves offer a

poor target and many seals, after having been fired at, become extremely

shy. They seem to be holding their own in numbers at the present time.

Scheffer and Slipp (1944: 401) found that the young were born in late

May along the ocean coast and in June and July in Puget Sound. The young

seal mentioned as having been kept captive at Friday Harbor was obtained

from an Indian on July 26, 1938, and was said to be two weeks old at the

time. The Indian said that he had watched the birth of the young and

then killed the mother for bounty. On July 28 the young seal weighed

approximately 20 pounds and was in good health. The seal could swim

well. It was said to have been born "on the rocks" at Long Island, San

Juan County. The seal drank milk from a baby's bottle but refused fresh

scallops, clams and fish of several species. When put into a large,

screened box sunk in the water it at once investigated the other animals

in the box. It showed no fear of a large bull cod weighing 50 pounds, or

of a 20-pound skate and several sharks 5 feet long but seemed to be

frightened by a large octopus weighing about 30 pounds. In swimming, the

front flippers were held flat against the body and the actual swimming

was accomplished by the vertically-held rear flippers and the rapid

swinging of the hips. Its eyes were very dark brown, almost black, but

soft and appealing. The bases of the vibrissae were thick and soft. The

belly was silvery white and unspotted. The sides and back were iron gray

spotted with dark, bluish gray, the whole overlaid with a silvery tint.

The claws were long, round, and sharply pointed.

When sleeping, the seal usually lay on its side, occasionally upon its

back or belly. The front flippers were held tight to its sides but the

back flippers were held straight back with the digits bent inward at

right angles and laid so that the right digits were against the left. In

moving on land the front flippers were folded into fists and used to

push the animal forward while the body was moved by snakelike motions of

the hips. It breathed in short gasps.

Genus =Tamias= Illiger

Chipmunks

The chipmunks of Asia and western North America have usually been

separated under the generic name _Eutamias_ from those of the genus

_Tamias_ of eastern America. Ellerman (1940: 428) placed both in the

same genus and Bryant (1945: 257-390) reached the same conclusions after

intensive study of American sciurids. Bryant's treatment is followed

here. The sciurid genera as they occur in Washington, are listed by

Bryant as follows: _Tamias_, _Marmota_, _Citellus_, _Sciurus_,

_Tamiasciurus_, _Glaucomys_. This order, rather than that of Miller

(1924) is used here. Four species of _Tamias_ are listed for Washington:

_minimus_ represented by two subspecies; _amoenus_, by six; _ruficaudus_

by one; and _townsendii_, by two.

Chipmunks from Washington vary in size from less than 8 inches in total

length to more than 10 inches in total length. Some race of chipmunk

occurs in almost every part of Washington. Their striped color pattern

serves as a universal recognition mark. The somewhat similarly striped

mantled ground squirrel is often mistakenly called chipmunk. The mantled

ground squirrel is larger than any chipmunk, has but two dark stripes as

compared with five dark stripes of chipmunks, and has a plain, reddish

head unlike the distinctly striped head of _Tamias_.

Like most members of the squirrel family, chipmunks are active by day

and are therefore better known to man than are most of the other kinds

of small mammals, most of which are nocturnal. The attractive color and

sprightly actions of chipmunks make them a delightful feature of the

outdoors. They feed on fruit, seeds, and fungus and eagerly eat food

that can be begged or stolen from man. They have been known to kill mice

and they have been accused of destroying nests and eggs of birds. They

often eat insects and occasionally eat the flesh of mice or other

chipmunks held in collector's traps.

Chipmunks climb trees and bushes readily but only _townsendii_ can be

called arboreal, and even it prefers to climb on stumps and dead trunks

rather than in living trees. All species are fond of climbing about

rocky outcrops and talus slides.

The call of the chipmunks is a birdlike cheep. In _minimus_ it is shrill

and uttered rapidly, but it is low-pitched and is uttered by

_townsendii_ with longer intervals between the notes. The call of

_amoenus_ is of an intermediate nature.

Young of chipmunks vary in number from four to six. Nests are

constructed of dry grass and are placed under rocks, logs, and in

burrows in the ground. There are four pairs of mammae, one pectoral, two

abdominal, and one inguinal.

=Tamias minimus= Bachman

Least chipmunk

_Description._--The least chipmunk is the smallest chipmunk found in

Washington. The head and body of adults measure about 3-1/2 inches; the

tail about 3-1/2 inches. Its fur is short and sleek. The dorsal stripe

is black; the upper pale stripe is buffy gray; the lower dark stripe is

rich brown; the lower stripe is white. The sides are pale buff and the

head, rump and thighs are buffy gray. The tail is brownish above,

yellowish beneath.

_Tamias minimus_ has a wide range, being found from the Cascade-Sierra

Nevada Chain to the Great Lakes and from northern Canada to central

Arizona and New Mexico. Two races occur in Washington, both in the

sagebrush desert area.

Least chipmunks are only locally common in Washington. I have found them

in areas where the soil was firmly packed and sagebrush the dominant

vegetation. All were far from water. Two miles west of Vantage, Kittitas

County, several were found near an old sheep corral, where one took

shelter in a pile of boards. In my experience, least chipmunks are wary

and difficult to collect. Many times as I crept silently through the

sagebrush chipmunk after chipmunk scampered with tail aloft into a hole

at the base of same sage bush, each far out of gunshot, voicing alarmed

chirps. The extreme caution of least chipmunks, as compared with other

species, is doubtless a necessary adaptation to living in an exposed

situation. The open sagebrush desert is a favored hunting place of hawks

and eagles; also coyotes, wildcats, and badgers sometimes abound there.

All these probably find the least chipmunk a suitable food item and only

the most cautious chipmunk survives to reproduce. The least chipmunk has

been timed at a speed of 10 miles per hour (Cottam and Williams, 1943:

262).

The food of the least chipmunk in eastern Washington is almost entirely

seeds of the annuals that flourish briefly in the spring. Insects

probably are eaten and one specimen had the remains of two scorpions in

its stomach.

=Tamias minimus scrutator= (Hall and Hatfield)

_Eutamias minimus pictus_ Howell, N. Amer. Fauna, 52:39, November

30, 1929.

_Eutamias minimus scrutator_ Hall and Hatfield, Univ. California

Publ. Zoöl., 40:321, February 12, 1934.

_Tamias minimus scrutator_ Ellerman, Fam. and Genera of Living

Rodents, British Mus. Nat. Hist., p. 432, June 8, 1940.

[Illustration: FIG. 80. Distribution of the least chipmunk in

Washington. A. _Tamias minimus scrutator._ B. _Tamias minimus

grisescens._]

_Type._--Obtained near Blanco Mountain, 10500 ft. elevation, Mono

County, California, by J. Grinnell on July 28, 1917; type in Museum

of Vertebrate Zoölogy.

_Racial characters._--Buffy color; wide dark stripes and narrow

pale stripes.

_Measurements._--A male and a female from Sunnyside, Yakima

County, measure respectively; total length 186, 186; length of

tail 81, 82; hind foot 31, 31; ear 9, 10.

_Distribution._--The sagebrush areas west of the Columbia River.

Present in scattered and widely separated areas, ranging,

according to Howell (1929: 41), north to Ellensburg and south to

Wiley City.

This species is a member of the Great Basin Fauna that entered the

state from Oregon. The population in Washington is now isolated

north and west of the Columbia River but seems not to differ from

least chipmunks from Oregon and Nevada.

=Tamias minimus grisescens= (Howell)

_Eutamias minimus grisescens_ Howell, Jour. Mamm., 6:52, February

9, 1925.

_Tamias minimus grisescens_ Ellerman, Fam. and Genera of Living

Rodents, British Mus. Nat. Hist., p. 431, June 8, 1940.

_Type._--Obtained at Farmer, Douglas County, Washington, by J. A.

Loring, on July 31, 1897; type in United States National Museum.

_Racial characters._--Similar to _scrutator_ but smaller; more

grayish, less buffy in color, dark stripes narrower and pale

stripes wider.

_Measurements._--Seven topotypes and near topotypes average: Total

length 177; length of tail 78.7; hind foot 26.8; ear 10.6.

_Distribution._--Known only from the Columbian Plateau. This race

is rare and though we hunted for it in localities where specimens

have been collected, including the type locality, it was found but

twice. Ranchers living in the area know the chipmunk but see

individuals only occasionally. Marginal occurrences are Douglas

(Howell, 1929: 41), Vantage (V. B. S.) and Pasco (Howell, 1929:

41).

_Remarks._--The geographic range of this race is separated from that of

_scrutator_ by the Columbia River and many miles of country uninhabited

by chipmunks of this species.

=Tamias amoenus= Allen

Yellow-pine chipmunk

_Description._--The yellow-pine chipmunk resembles the least chipmunk

but is larger. The underside of the tail is more ochraceous, less

yellowish. The color of the sides varies considerably in the various

races. The stripes are narrow and sharply delineated, the dorsal one

being black. Next lower is a grayish stripe, followed by one of brownish

black. The lower stripe is white. The underparts, in most races, are

white but in _luteiventris_ are buffy.

The geographic range of the species is west of the Great Plains from

central British Columbia to central California. There are twelve races,

six of them occurring in Washington.

The yellow-pine chipmunk is a small animal, being but little larger than

the least chipmunk, and much smaller than _townsendii_. Externally it

may be separated from the Townsend chipmunk by its small size, sleek,

appressed pelage and brighter color. Separation from _minimus_ is more

difficult but, in the Washington races of _minimus_, the colored fur of

the underside of the tail is pale yellowish while in _amoenus_ it is

more ochraceous or buffy. So far as is known, the two species do not

occur together in Washington.

The yellow-pine chipmunks live in open woods, brushy areas, clearings,

and rocky outcrops. Suitable conditions are abundant in mountainous

areas and the distribution of mountain ranges affects the distribution

of these chipmunks. Where yellow pine forests descend to relatively low

altitudes, the chipmunks enter the lowlands. Such conditions are

present in some places along the eastern base of the Cascades, the

inter-mountain river valleys of northeastern Washington, and along the

central-eastern border of the state.

Yellow-pine chipmunks are sprightly and active. They seem always to be

moving restlessly about, running, investigating for food, and watching

for enemies. They are far tamer than the least chipmunks, usually

allowing the observer to approach within twenty feet or closer. Some,

after coaxing, will take food from a person's hand.

Near Stevens Pass, King County, numbers of _Tamias townsendii cooperi_

and _Tamias amoenus ludibundus_, apparently on good terms, were feeding

together on blue huckleberries which grew in abundance on an extensive

snowslide area. The yellow-pine chipmunks had been drawn from

surrounding open areas by the berries, while the Townsend chipmunks had

been attracted from the forest by the same food. The nervous movements

of _amoenus_ contrasted strongly with the more sedate behavior of

_townsendii_. At the observer's close approach the yellow-pine chipmunks

went scampering off through the brush and tangles of logs and branches,

to emerge again and watch from a hundred feet away. The same

individuals, when repeatedly followed, always remained in sight. Most of

the Townsend chipmunks, when frightened, ran into the nearest dense

cover and vanished, not to appear again. A goodly number, perhaps ten

per cent, climbed high up in fir trees. None of the yellow-pine

chipmunks took refuge in trees.

The yellow-pine chipmunk is usually found at considerable altitude and

consequently there is deep snow and bitter cold in winter where it

lives. Hibernation is probably complete. Seemingly these chipmunks

depend on stored food rather than on accumulated fat to tide them over

the winter, for animals collected in autumn are no fatter than those

taken in the spring. Svihla (1936B: 290) found that _Tamias a.

canicaudus_, hibernating in captivity at Pullman, Whitman County, awoke

at intervals to eat stored food. The time of retirement of yellow-pine

chipmunks for the winter seems to coincide with the coming of winter

weather. In mid-November of one year, when no snow had yet fallen in the

Cascades, yellow-pine chipmunks were common near Stevens Pass, although

their actions were noticeably slow. In another autumn, when the winter

snows came early, I looked in vain for chipmunks in October where they

had been common earlier. George C. Cantwell noted a yellow-pine chipmunk

at Republic, Ferry County, on November 9, 1903, after the ground was

"well frozen," but apparently free of snow (Howell, 1929: 7). Like

other species that hibernate, they, at times, seem to become active in

winter; J. B. Flett reported seeing a yellow-pine chipmunk at Longmire,

Mt. Rainier, on February 14, 1920, and again on March 31 (Howell, _loc.

cit._, p. 7). At Deer Park, Clallam County, at timber-line, several

_Tamias townsendii cooperi_ were active in early April, 1938, but only

one _Tamias amoenus_ was seen. In the previous June they were abundant

there and _townsendii_ was scarce.

I have watched these chipmunks eat the berries of the red huckleberry

(_Vaccinium parvifolium_), salmonberry (_Rubus spectabilis_),

thimbleberry (_Rubus parviflorus_), devil's club (_Fatsia horrida_), and

mountain ash (_Sorbus cascadensis_ and _S. occidentalis_). Of these, the

blue huckleberry (_Vaccinum occidentale_ and _V. membranaceum_) are

probably the most important to the chipmunks. At Sherman Creek Pass, in

the Kettle River Mountains, Ferry County, I watched a pika (_Ochotona_)

busily harvesting wild raspberry plants (_Rubus leucodermis_), and

laying them in a pile under a rock. A yellow-pine chipmunk waited under

the rock and ate the ripe berries from each branch as it was laid away.

A brood nest of the yellow-pine chipmunk was discovered by Shaw (1944:

274) at Hurricane Ridge, Clallam County. The entrance was a hole 1-1/2

inches in diameter constructed among the grass and alpine flowers of a

meadow at 6,450 feet elevation. The burrow itself was 2 inches in

diameter, and had a turning-around pocket 9 inches from the entrance.

The nest was situated just beneath the sod, 4 feet from the entrance.

The nest chamber was 7 inches high by 7-1/2 inches in diameter and in

the shape of a "round-bottomed flask." It was filled snugly with nest

material composed of a grasslike sedge (_Carex spectabilis_) mixed with

feathers of the blue grouse. Earth excavated from the nest cavity had

been forced upwards through the sod in the manner of a mole in forming

mounds. The single burrow was unbranched. Seven young of about 16 to 18

days of age were found in the nest.

=Tamias amoenus caurinus= (Merriam)

_Eutamias caurinus_ Merriam, Proc. Acad. Nat. Sci. Philadelphia, p.

352, October 4, 1898.

_Eutamias amoenus caurinus_ Howell, Jour. Mamm., 3:184, August 4,

1922.

_Tamias amoenus caurinus_ Ellerman, Fam. and Genera of Living

Rodents, British Mus. Nat. Hist., p. 432, June 8, 1940.

_Type._--Obtained at timber-line, head of Sol Duc River, Olympic

Mountains, Clallam County, Washington, by C. H. Merriam and Vernon

Bailey on August 27, 1897; type in United States National Museum.

_Racial characters._--Small size and pale color.

_Measurements._--Seven males and 3 females from Deer Park, Clallam

County, average: total length 207.4; length of tail 93.2; hind foot

32.5; ear 16.

_Distribution._--Higher parts of the Olympic Mountains, from Deer

Park (W. W. D.) south to head of Dosewallips River (Howell,

1929:77).

=Tamias amoenus felix= Rhoads

_Tamias quadrivittatus felix_ Rhoads, Amer. Nat., 29:941, October,

1895.

_Eutamias quadrivittatus felix_ Miller and Rehn, Proc. Boston Soc.

Nat. Hist., 30:44, December 27, 1901.

_Eutamias amoenus felix_ Howell, Jour. Mamm., 3:184, August 4,

1922.

_Tamias amoenus felix_ Ellerman, Fam. and Genera of Living

Rodents, British Mus. Nat. Hist., p. 432, June 8, 1940.

[Illustration: FIG. 81. Distribution of the yellow-pine chipmunk in

Washington. A. _Tamias amoenus luteiventris._ B. _Tamias amoenus

canicaudus._ C. _Tamias amoenus affinis._ D. _Tamias amoenus

ludibundus._ E. _Tamias amoenus felix._ F. _Tamias amoenus caurinus._]

_Type._--Obtained at Church Mountain, British Columbia, near the

United States boundary by Allan Brooks on August 13, 1895; type in

Philadelphia Academy of Natural Sciences.

_Racial characters._--Large size and rich, dark color.

_Measurements._--Ten topotypes average: total length 224.7; length

of tail 98.8; hind foot 34.1; ear 14.4.

_Distribution._--The extreme northwestern Cascades, north and west

of Mt. Baker.

_Remarks._--This richly-colored coastal race barely enters Washington.

It is abundant near Goldrun Pass and Tomyhoi Lake, Whatcom County, just

south of the international boundary.

=Tamias amoenus ludibundus= (Hollister)

_Eutamias ludibundus_ Hollister, Smithsonian Misc. Coll., 56 (no.

26):1, December 5, 1911.

_Eutamias amoenus ludibundus_ Howell, Jour. Mamm., 3:184, August

4, 1922.

_Tamias amoenus ludibundus_ Ellerman, Fam. and Genera of Living

Rodents, British Mus. Nat. Hist., p. 432, June 8, 1940.

_Type._--Obtained at Yellowhead Lake, 3,700 ft., British Columbia,

by N. Hollister on August 29, 1911; type in United States National

Museum.

_Racial characters._--Moderate size, brownish rump, ochraceous

sides.

_Measurements._--Five males and 4 females from the higher parts of

the Cascades average, respectively: total length 210, 217; length

of tail 89, 90; hind foot 33, 33; ear 17.4, 16.7; weight 50, 59.7

grams.

Mammals of Washington, Volume 2 University of Kansas Publications Museum of Natural History · 第 20 / 36 段