EXTERNAL CHARACTERS OF CHEVROTAINS. d 



the white of the throat runs into that of the chest. Tragulns 

 differs both from Hijemoschus and from Moschiola in having the 

 mandibidar stripe undeveloped orver}' short. 'J'he jugular stripe, 

 however, is as long as in Ilyemosdms, but the dark band which 

 separates it from the median white band on each side is broader 

 posteriorly and is continued farther forwards and frequently 

 meets its fellow of the opposite side a little behind the line of 

 the angles of the jaw, thus dividing the white of the interramal 

 area from that of the throat. Moreover, the white area of the 

 throat, which is much broader behind than in front, is separated 

 from the white of the chest b}^ a dark transverse band. 



Text-fiafure 1. 



A. Rliiuai'ium of Hyemoxchus aqnaticus, from above. 



B. „ Moschiola meminna, from the side. 



C. Exterml ear oi Hj/emoschus aqnaticus. f, tragus; Z, lappets overlying 



the depression. 



D. The same, with the external rim of the capsule cut open behind the 



tragus, showng the auditory orifice, t, tragus turned forwards; 

 I, lappets ; 7; supporting ridges ; a, cut edge. 



The Rhinarium in the three genera is large, naked, and sculp- 

 tured by grooves into larger and smaller areas. Its dorsal surface 

 extends backwards some distance behind the posterior angle of 

 the nostrils, which are comparatively narrow and slit-like, but 

 not more valvular than in the Cervida?. The area of the rhina- 

 rium beneath them is deep laterally and wide in front, wider 

 than the internarial septum and as wide as the anterior rim of 

 the lower lip (text-fig. 1, A, B). 



1* 



