C fi-52 ) 



FIRST GLIMPSES OF THE ZOOLOGY OF THE NATUNA 



ISLANDS. 



111. LL<r uK TllK FlliST COLLECTIOiX OF .AIA.M.MA1> FKo.M THE 

 NATUNA ISLANDS. 



By OLDFIELD THOMAS and ERNST HARTERT. 



(With Field Notes by A. Evehett.) 



IN a previous article I gave an account of the first collection of birds from the 

 Natunas (see antea, pp. 469-483). The present one contains the list of the 

 mammals collected during the same time on Bunguran and Sirhassen Islands. It 

 will be seen that the mammalian faunas of Bunguran and Sirhassen differ con- 

 siderably ; and, judging by the mammalia, it would seem that Mr. Everett was to 

 a great extent right in his remarks quoted on p. 468 and alluded to on p. 483 ; at 

 least the mammalian inhabitants of Sirhassen show a much closer relationship to those 

 of Borneo than to those of the Malay Peninsula. 



The species have been named by both of us, and the specimens compared carefullv 

 with the material in the British Museum, but Mr. Oldfield Thomas has alone named 

 the Chircrpkn-a and Murinae, and is consequently alone responsible for them. 



The types of the new forms are in the British Museum, and the co-tvpes in 

 Mr. Rothschild's Museum ; specimens of most of the other species are also preserved 

 in both these collections. 



Mr. Everett's notes are enclosed in brackets and signed with his initials. 



E. H. 



1. Semnopithecus natunae sp. nov. 



a. Type. — ad. J. Bunguran, October lUth, 18!);5. Other specimens, all from 

 Bunguran. 



Size, proportions, and coloration .showing a general resemblance to the iS./er/toi-a- 

 lia group, the prevailing colours being black and white. While, however, the fore- 

 head, the fore-arms and hands, lower legs and feet, and tail (both above and below) 

 are all deep glossy black, the back itself, with the occiput, nape, and shoulders, is 

 brown, rather darker than " Prout's brown " of Kidgway. Thighs along a narrow strip 

 on their outer aspect ashy grey, darkening distally into the black of the lower legs, 

 but their posterior aspect, continuous with their inner sides, is jierfectly white, giving 

 a very peculiar and characteristic ajjpearance to the animal, and one which is quite 

 unlike any species known to us, with the one exception tliat S. s'uvmensh has whitish 

 patches in somewhat the same position. Whole of under siu'face, with the sides of 

 the neck, the hairs on the insides of the ears, and lines down the inner sides of the 

 arms and legs, pure creamy white. 



F'ace thinly hairy throughout, the hairs black, except those on the nose, where 

 there is a whitish patch. 



Forehead with the hairs radiating outwards and backwards from a single central 

 point about half or Ihrco-quarters of an inch behind the eyebrows; posteriorly these 



