454 



Mf. K. T. Pocock on some 



Gcuus Binos, Hodgson. 



Jiihos, lIol?son, Joiirii. Asiatic Soc. Bengal, vi. p. 499 (1837) : type, 



f/iiitnis. II. Smith. 

 GuvfTu*, llnijrsoii, op. ci'f. xvi. p. 70(5 (1847) : t\\)(^, frontah'x. 

 (rnur'hin. T'ri/)o-<, Ih/'mlihos, lleiide, Mc^m. Hist. S^at. Cliin. v. pt. i. 



p. 3 (UH)l) : types (now selected) respectively laosiensis, plafycerus, 



annamificiis, Heude. 



Tlie rhinar'ntm of tlie two forms I have examinpfl — namely, 

 fronfalis, wliioli is almost certainly a domesticated breed of 

 B. gaurus, and hanttiuj — Iocs not diller in any important 



Fig. 4. 



A. End of penis of African buffalo {Syncerus caffer cequinoctiaUs?) from 



the left side. 



B. The game of zebu (Bos indicus). 



C. The same from below. 



D. The same of bantenj? (Bibos hanteyig) from left side. 

 K. The same of gnyal {Bi'jos frontal ig) from below. 



F. The same of American bison {Bison bison) from the side. 



G. The same from below. . 



respects from that of Bos, although the dorsal surface seems 

 to be less overgrown with hair than even in B. indicus. Tlie 

 hair encroaches only to a slight extent between the posterior 

 angles of the nostrils, so that the posterior border of the 

 upper side is lightly concave. This feature may, however, 

 ])rove to be variable. In the feet the interungual integument 

 is naked as in Bos, not hairy as in Bison. 



The penis (fig. 4, D, E) in both the above-mentioned 

 species differs from that of Bos in that the urethral canal is 



I 



