918 SIR V. BROOKE ON THE [Nov. 19, 



specimens ; they also differ from the larger specimens and the common 

 Roe in some details of coloration. It is not improbable that the 

 Mantchurian Roe may prove to be a third modification of the form. 



C. Distal ends of the lateral metacarpals remaining. (Telemeta- 



CARPI.) 



Posterior portion of the nasal chamber divided by the vomer into 

 two distinct chambers. 



Tuft of hair on the external surface of the metatarsus, when pre- 

 sent, below the centre of that bone. Tuft on the inside of 

 the tarsus frequently present. 



Ascending rami of the preemaxillee not reaching the nasals. (Ex- 

 ception, subgen. Furcifei:) 



7. Cariacus. 

 (Cariacus, subgen.) 



1827. Masama (subgen.), Ham. Sm., Griff. An. Kingd. vol. v. 

 p. 314 (nee Rafinesque) 1 . 



1850. Cariacus, Gray, P. Z. S. 1850, p. 237. 



Antlers not greatly exceeding the head in length, on short 

 pedestals. A short upright brow-antler (fig. 13, a) rises from the 

 inner surface of the lower third of the antler some little distance 

 above the burr. The antlers are curved boldly forwards, down- 

 wards, and inwards, one or more tines being developed from their 



Fig. 13. 



Cariacus (Cariacus) virginianus. 



convex or posterior surface. Skull elongated and narrow. Lacry- 

 mal pit of moderate extent, owing to the very large anteorbital vacuity, 

 which encroaches on the region usually occupied by the facial plate 

 of the lacrymal. Nasals forming the larger part of the superior 

 border of the anteorbital vacuity. Auditory bullae slightly inflated. 

 No upper canines ; molars sometimes with small supplementary 

 columns ; central incisors bnt slightly spatulate. A tuft of long 



1 Masama, of Kafinesque (1817), is too ill-defined to be used for either the 

 Kocky-Mountain Sheep or the Pronghorn ; but its publication invalidates its 

 subsequent use in any other sense. Cf. Baird, N.-Am. Mamm. p. 665. 



