OF DIPUS, OR JERBOA. 119 



" Corpus 4 joHices cum 9 line'is Icnjum^ f"p>'i^ pa'llde 

 ftilvum aliquanJo fubgrifeiini^ fiibfns la£leum pojlice in- 

 craffatiim ; caput ???agis oblongiwi^ qtiam jaculo, roftro 

 produBiore ; auriculas injignes ovales ; os peclefque albi ; 

 ho rum voice villojjjimce, anteriarum pollex vix ut.gu'cula- 

 ttts ; poiicr'iorum femora carnojijfimn ; Cauda vix ultra 3 

 pollices longa^ (^^('Jf^-, largifer piloju* ." 



From thefe delcnptions, it appears that the Mus lon- 

 gipes of Pallas is larger than the Dipus Ameiicanus. 

 This circumftance is farther confirmed by Zimmermann, 

 who fays that the fize of the firft of thefe animals is be- 

 tween that of the rat and the field-mou{f -f-. The colour 

 of the Dipus Amcricanus is rather of a dark than of a 

 pale tawny, colour. Below the colour in both animals 

 feems to be the fame. As far as 1 can judge from the 

 figures of the Dipus Jaculus, I fhould think that the 

 head of this animal is more oblong than that of the Dipus 

 Amerlcanus. The ears of the Dipus meridianus are 

 faid to be large. Thofe of the Dipus Americanus are 

 much fmaller than the ears of the Dipus Jaculus, or any 

 other fpecies of the genus of which I have feen figures. 

 The feet of the Dipus Americanus are not white, but 

 are of a reddilh or fleih colour. The foles of the feet 

 of the Dipus meridianus are faid to be very villous ; bu-t 

 the foles of the feet of the Dipus Americanus are nearly 

 naked. In the Dipus Americanus, the tuberculum of the 

 fore-feet is entirely deftitute of a nail. The thighs of 

 the hind legs of the Dipus meridianus are faid to be very 

 thick, or flefhy. Thofe of the Dipus Americanus do not 

 appear to be remarkably fo. The tail of the Dipus meri- 

 dianus is faid to be fhorter than the body, The tail of 

 the Dipus Americanus is confiderably longer than the 

 body. 



* Syftcma Naturse, torn. i. p. 159. 



I Geographifche Gefchichte, &c. fweiter band, p. 357. 



0^2 I have 



