no. 1809. MAMMALS FROM BORNEO AND VICINITY— LYON. 69 



RUSA BROOKEI (Hose). 



1893. Cervus brookei Hose, Ann. Mag. Nat. Hist., ser. 6, vol. 12, p. 206. 



1906. Rusa brookei, Lyon, Proc. U. S. Nat. Mus., vol. 31, p. 585, December 18, 

 1906. 



1907. Rusa brookei, Lyon, Proc. U. S. Nat. Mus., vol. 33, p. 550, December 24, 

 1907. 



Twenty-three individuals of Rusa hrookei are represented in Doctor 

 Abbott's recent collections from southwestern and southeastern Bor- 

 neo, sixteen of them by antlers obtained from natives, and four by 

 skins and skulls, and the remaining three by skulls and scalps. Two 

 specimens were obtained along the Kapuas River in 1905. (For 

 exact localities and the external, cranial, and antler measurements 

 see tables, p. 70.) 



It is possible that more than one species is represented by this 

 material. The skulls of the male specimens from southeastern Bor- 

 neo average somewhat smaller than the skull of a fully adult male 

 from the Sempang River. The skins of those from southeastern 

 Borneo are decidedly different from that obtained in southwestern 

 Borneo, but the difference is probably one of pelage. It is seen most 

 clearly on the lower back. In the Sempang skin the color appears 

 uniformly dark brownish, although the hairs are very light in color 

 at the base; none of the hairs are annulated. In the specimens from 

 southeastern Borneo the color is very bright and "reddish," and a 

 distinct grizzling is conspicuous. The individual hairs are almost 

 whitish at their bases, gradually changing to a dark brownish about 

 the middle portion, followed by a well-marked bright hazel ring and 

 a blackish terminal band. A more or less well- denned blackish-brown 

 stripe extends along the back of the animal. The pelage difference 

 appears to be independent of season. The three specimens showing 

 the grizzling were collected in February, April, and November, 

 respectively; the dark ungrizzled skin was collected in August. 



The single specimen from Pulo Laut shows no noteworthy differ- 

 ence from the mainland individuals. 



Generally common, especially about Pamukang Bay. Those found on Pulo Laut 

 had much finer horns than those on the mainland. Two heads obtained at Pamukang 

 Bay have extremely poor horns, but they are certainly not immature. Probably 

 the food is better on Laut. There is good pasturage there. The carcasses of deer 

 from both places are about the same size. — W. L. A. 



