534 Messrs. O. Thomas and E. C. Wrongliton on 



LXVIT. — Diagnoses of neiv Mammals collected hy Mr. H. C. 

 Eobinson in the Islands of the Straits of Malacca. By 

 Oldfield Thomas and R. C. Wroughton *. 



(Published by permission of the Trustees of the British Museum.) 



Thi: followinpj are diagnoses of some new mammals obtained 

 by jNlr. H. C. Robinson in the Islands of Langkawi and 

 Terutau, and presented by the Government of the Confede- 

 rated IMalay States to the National Museum. The fuller 

 descriptions, with a detailed list of the collection from the 

 Islands, will be published in the Journal of the Museum at 

 Selangor. 



1. Presbytis obscura carbo, subsp. n. 



A local race of P. obscura, characterized by its darker 

 colouring in all details. Colour above black, paler and 

 suffused with reddish on the shoulders and anterior middle 

 bark ; below dark brown. Nuchal patch pale drab-grey. 

 Thighs and tail dark grey. Hands and feet black. 



Hah. Langkawi and Terutau Islands, Straits of Malacca 

 (type from Langkawi). 



Type. Adult male. B.M. no. 9. II. 1. 4. Original num- 

 ber 2373. Collected 25th February, 1909. 



Three specimens examined. 



2. "Pteropus hypomelamis robinsoni, Andersen, subsp. n. 



" Similar to Pt. hypomelamis tomesi, but mantle, breast, and 

 belly considerably lighter in colour. The same character 

 disciiminates it from Pt. h. condorensis, from which it is 

 further distinguished by the more blackish, less brown colour 

 of the back. From Pt. h. canus and lepidus it is separable 

 by the much darker colour of the back, the lighter colour 

 of the mantle, breast, and belly, and the peifectly normal 

 size of the teeth. Finally, it is easily recognizable from 

 Pt. h. annectens by the much darker colour of the back. 



" Hab. Rumbia Island, Straits of Malacca. 



''lype. Adult female. B.M. no. 9. 11. I. 8. Original 

 number 1779. Collected 5th March, 1909. 



" Three specimens examined.'^ 



♦ The new Fteropus by Knud Andersen. 



