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SPERMOPHILUS LATERALIS.-Say. 
Say’s Marmot-Squirrel, or Spermophile. 
PLATE CXIV. 
B- magnitudine Sciuri Hudsonici ; stria laterali flavescente alba nigro 
marginata. 
CHARACTERS. 
Size oj Sciurus Hudsonicus ; a yellowish-white stripe bordered, with dark 
brownish-blaclc on each flank. 
SYNONYMES. 
Small gray Squirrel. Lewis and Clark, vol. iii. p. 35. 
Sciurus Lateralis. Say, Long’s Expedition, vol. ii. p. 46. 
“ “ Harlan, Fauna Americana, p. 181. 
Rocky Mountain Ground Squirrel. Godman, Nat. Hist., vol. ii. p. 144. 
Arctomys (Spermophilus) Lateralis. Rich., Zool. Jour., vol. ii., No. 12, p. 519. 
“ “ “ Say’s Marmot. Rich., F.B. A., p. 174, pi. 13. 
DESCRIPTION. 
The body in form resembles the Spermophiles, with a slight approach to 
the Tamite ; head, rather large ; forehead, convex ; nose, obtuse and 
covered with short hairs, except a naked space around the nostrils ; inci- 
sors, flattened anteriorly ; mouth placed pretty far back ; whiskers, shorter 
than the head ; a few long black hairs over the eye and posterior part of 
the cheeks ; eyes, rather large ; ears, oval and somewhat conspicuous, 
appearing like the ears of most animals of this genus, with the exception 
that they seem as if trimmed or cut short ; they are thickly clothed on both 
surfaces with short hairs, and have a small doubling of the anterior margin 
to form a helix, which where it approaches the auditory canal is covered 
with longer hairs. 
Legs, shorter and stouter than those of the squirrel family ; feet, shaped 
like those of the Spermophili ; claws, stronger, straighten, and better 
adapted for digging than those of the Tamice ; the thumb tubercle is far 
back, and has a small obtuse nail ; soles (of hind feet), naked to the heel, 
as are also the palms (of fore feet) and the under surface of the toe3 ; upper 
