56 



Gerbilltts CuviERi. Gerb. suprd. colore flavescenti-cinnamomeo ; 

 guld, abdomine, pedibtisque niveis ; auribus mediocribus ; caudd 

 longissimd ; tar sis long is. 



unc. lin. 

 Longitude ab apice rostri ad basin caudae .... 7 1 



■ CRuda 8 



ab apice rostri ad basin auris 1 6 



tarsi digitorumque 1 8| 



auris 7 



fi^f^^^ Hab. India. (No. 473. in Catal. of the Mammalia in the Zoolo- 



Hc^.^ ' Sical Society's Museum.) 



" General colour very bright cinnamon yellow; the hairs of the 

 ■Ms i^tf. 5i^,c xipper parts of the body gray at the base; cheeks whitish, a wliite 

 , spot above, and extending behind the eye ; the feet and the whole 

 of the under parts of the animal white; the hairs of the same colour 

 at the base as at the apex ; tail brownish above, dirty- white be- 

 neath, the apical third furnished with long blackisli hairs ; ears 

 blackish, sparingly clothed with white hairs ; hairs of the moustaches 

 black, some of those nearest the mouth white. 



" This species of Gerbilltts, which I have great pleasure in naming 

 after M. F. Cuvier, who has published so excellent a monograph on 

 the grouj) to which it belongs, I have reason to believe has long been 

 confounded with the animal described by Major- General Hardwicke, 

 in the eighth volume of the Linnean Transactions, under the name of 

 Dipus Indicus. The chief character which induces me to consider 

 it as a distinct species, consists in the comparatively great length of 

 the tarsus. In a specimen of Gerb. Indicus, which exceeds the present 

 animal in size, I find the tarsus to be only 1 inch and 6 lines in 

 length ; and in a specimen in the Paris Museum the foot was only a 

 quarter of a line longer, this animal being likewise larger than the 

 specimen Avhich famished the above description. In the same mu- 

 seum there is also a specimen of the present species, in which the 

 tarsus measured 1 inch 9 lin. ; the length of the animal being 7 inches 

 10 lin. In the specimen of Gerb. Indicus, and that of Gerb. Cuvieri, 

 belonging to the Zoologicd Society's Museum, there is a consider- 

 able difference in the colouring, the latter being paler, and of a much 

 brighter hue than the former ; but whether this diff'erence is constant 

 I am not aware." 



