MAMMALS FROM MENTAWEI 663 



throughout the chain the whole way from the Nicobars to 

 Christmas Island, 



1. Seinnopitlioeiis i>oteiiz;iaiii, Uonai'. 



a. (/, Si Oban, E. Sipora, Aug. 1894. 



b. 9. Sereinu (Sipora), May 1894. 

 Male. Tail 580 mm. ; hind-foot 160. 

 Female. » 570 » > 148. 



Although not new, tliis monkoy is perhaps the most interesting 

 of Dr. Modigliani "s captures, for its present occurrence really 

 represents the re -discovery of a lost species, lost that is to say 

 so far as any definite knowledge of its locality is concerned, 

 while in itself the animal is one of the most striking and 

 beautiful of the genus, as may be seen by Peters's excellent 

 figures of the Berlin specimens ('). 



The history of the species has been briefly given by Mr. Blan- 

 ford (') , to whom personally I owe the first suggestion as to 

 the identity of the Mentawei Monkey with it. I do not however 

 agree with him that the name potenziani cannot stand, especially 

 after Peters's distinct identification of " 5. chri/sogaster „ with 

 it, and propose therefore to use the earlier name. Even the 

 name chrijsogaster itself is not very suitable to a red-bellied 

 animal. 



As to the important point of the typical locality Blanford 

 says " I could not learn anything in Berlin of the original 

 collector, although on the stand, besides the locality, is the 

 name Prof. Strempel. The circumstance that so beautifully 

 coloured and conspicuous a species has not been noticed again, 

 tends to raise some doubt as to the species really occurring in 

 Tenasserim. „ 



The doubt expressed by Mr. Blanford appears to me to be 

 so much strengthened by the discovery of the species in Sipora, 

 an island whose mammals are in no other respect like those 

 of Tenasserim, that I would for the present provisionally look 



(') MB. Ak. Beri. 1879, p. 832, pi. IV. 

 (-) Mamm. Brit. Iiid. p. 38, 18S8. 



