34 ZOOLOGY OF THE VOYAGE OF THE SULPHUR. 



Grey-tailed Squirrel. — Sciurus griseocaudatus. 



Plate XIII. Fig. 2.— Skull and Teeth, Plate XVIII. f.7.12. 



Far yellow and black, nearly equally mixed. Hair short, rather rigid, black, with a broad, 

 yellow, subterminal band ; spot of soft hair behind the base of the ears ; the chin, throat, 

 under parts of the body, inner sides of legs and feet, fox-coloured. Edge of the ears and 

 whiskers black. Tail broad, flat, black, grey washed above ; the hairs yellow, with two 

 broad black bands, and a long grey tip, beneath. 



Inhab. West Coast of America. 



In. Lines. 



Length of the body and head 10 



ofthetail 11 ' 



of the hind foot 2 3 



This species is at once known from all the American squirrels I am ac- 

 quainted with by the distinct black and white appearance of the upper surface of 

 the tail, and the yellow and black bands of the hairs of which it is composed, 

 which are only to be seen on the under surface. The latter character, and its 

 larger size, separate it from the Sciurus Boot/tice {Gray, List Mam. Brit. Mus. 

 139. S. Richardsouii, Gray, Ann. and Mag. Nat. Hist. 1842, not Bachmann,) 

 from Honduras, which has the same grey-washed tail, but is of a much darker 

 colour, has black feet, is white beneath, and the hairs of the tail are black except 

 at the tip. Being believed to be new, it is figured (Plate XIII. Fig. 1.) for com- 

 parison with the species discovered by this expedition. 



Tamias Hindsii. 



Plate XII. Fig. 1. 

 Tamias Hindsii, Gray, Ann. and Mag. Nat. Hist. 1S42, 264. List Mam. Brit. Mus. 140. 



Rufous brown with three rather close black streaks on the middle of the back, the outer ones 

 edged with a white streak, having an indistinct black edge to it on its outer side. Head 

 darker, with a reddish streak from the end of the nose, enclosing the eyes. Throat 

 and beneath white. Feet rusty brown. Hairs of the body dark at their base. Tail 

 roundish; hair red at the base, with a broad black subterminal band, a whitish tip. 

 Ears hairy, blackish ; hinder edge and tip white. 



Inhab. California. 



In. Lin. 



Length of the body and head 5 6 



ofthetail 4 6 



of the hind foot 1 6 



