ZOOLOGY MAMMALS. 97 



Size that of Sciurus hudsonius, or a little larger. Ears well tufted ; tail shorter than the body, scarcely flattened. Soles 

 naked in the centre. Above, dull rusty asd black, mixed ; the latter quite predominant ; beneath, clear bright buff, without 

 mixture of dark or annulated hairs. A dark stripe on the sides. Tail dull chestnut centrally, darker above ; then black and 

 margined all round with rusty white. Hairs at tip of tail entirely black, except at their extremity. 



More northern specimens in winter lave the soles densely hairy to the toes, the fur much fuller and softer, the under parts 

 with dusky annulations, the general hue grayer. Size about that of S. hudsonius, or a little larger. Head short, broad- 

 Whiskers longer than the head ; black. Thumb, a mere callosity ; fingers well developed, the central two longest and nearly 

 equal ; the inner rather longer than the outer ; claws large, compressed, and much curved ; palms naked. On the hind feet 

 the inner toe is shortest, reaching only to the base of the claw of the outer, which comes next in size ; the fourth is longest, the 

 third and second little shorter. Claws all large and much curved. In summer the soles are naked, except along the edges and 

 the extreme heel ; in other words, there is a narrow central line of naked skin from near the heel ; they are more hairy in 

 winter. The ears are moderate, with short close hairs on their concavity ; the back of the ear is covered with long hairs, those 

 near the upper margin longest, and projecting beyond nearly five lines in some specimens ; these tufts are nearly black. The 

 L ail is small, shorter than the body, moderately flattened ; the hairs rather short, and, as on the rest of the body, coarse and 

 , ,ff. 



Many specimens of this species were collected at Fort Steilacoom. The food of the present 

 species differs from that of those collected in the Rocky mountains, (/S. richardsonii,) in being 

 confined to the cone seeds of the fur and spruce, whereas in the Rocky mountains the squirrels 

 live on the seeds of the red pine. Both species have the same habits and peculiarities of the 

 red squirrel of the middle States, very familiarly chatting and &quot; scolding&quot; when disturbed by 

 the presence of man, when they become easy prey to the gunner. I have observed them here 

 in mid-winter running about in the woods as actively as in warm weather, and they, therefore, 

 do not become torpid and hybernate. Specimen No. 13 was killed about the first of July. 



TAMIAS QUADRIVITTATUS. 



Missouri Striped Squirrel. 



Sciurus quadrivittatus, SAY, in Long s Exped. R. Mts. II, 1823, 45. 

 Tamias quadrivittatus, WAGNER, Suppl. Schreb. Ill, 1843, 234. 



AUD. & BACH. N. Am. Quad. I, 1849, 195 ; pi. xxiv. 



BAIRD, Gen. Rep. Mammals, 1857, 297. 



SP. Ch. Tail, with the hairs, nearly or quite as long as the body. A grayish white stripe along the top of the head, with 

 branches passing above and below the eye. The stripe bordered above and below by darker ones, and separated behind the 

 eye by a dark line. A gray or hoary patch behind the ears. Sides of body deep ferruginous ; back with five about equi 

 distant dark stripes, nearly black on the posterior part of the body, their intervals forming four grayish white lines of similar 

 dimensions to them. Tail, when flattened out, ferruginous externally, then black, then ferruginous. Body beneath, dirty 

 grayish white. Length, 4 to 5 inches. Hind foot, 1. 20 inch. 



Blue Mountains, 0. T., October, 9, 1854. (No. 30.) 



This specimen measured 4.50 inches to the root of the tail ; the tail 4.25. Another (lost) was 

 of the same size. 



TAMIAS TOWNSENDII. 



Towusend s Striped Squirrel. 



Tamias townsendii, BACHMAN, Jour. Phila. Acad. Nat. Sc. Phila. VIII, i, 1839, 68. IB. in Townsend s Narrative, 

 1839, 321. 



WAGNER, \Viegmann s Archiv. 1843, 11, 44. 



ACD. & BACH. N. Am. Quad. I, 1849, 159 ; pi. xx. 



BAIRD, Gen. Rep. Mammals, 1857, 301. 

 Tamias cooperii, BAIRD, Pr. Ac. Nat. Sc. Phila. VII, April, 1855, 334. 



SP. CH. Larger than T. striatus. Tail, with hairs, nearly or quite as long as the body. Sides of head striped. Above and 

 on the sides rufous brown, with five dark stripes reaching to the tail, the intervals between which are scarcely or but seldom 

 paler than the ground color ; beneath, dull white. Ears dusky brown, hoary posteriorly. Tail bright chestnut beneath, margined 

 with ashy white, within which is a band of black. Length 5 to 6 inches. Hind foot 1.40 to 1.50. 



Varies in rather paler colors, ash-colored interspaces, and sometimes the back with black hairs interspersed, so as to obscure 

 or nearly conceal the dorsal stripes. 



Many specimens of this species were collected at Steilacoom. It hybernates in winter. 

 13 Q 



