G40 On a new Q.y\\o\)texwQ from Borneo. 



Tucuman. Both have long glossy fur, very different in both 

 colour and texture from that of 67. saltarius, which in these 

 respects has a superficial resemblance to the far southern 

 Ct.fueginus. The bicolor tail and narrow skull are also 

 strongly characteristic of the Salta Tuco-tuco. 



LXXXI. — A new Cynopterus /ro??i Borneo. 

 By Knud Andersen. 



Cynopterus pej-similis, sp. n. 



Tt/pe, [cJ ] ad., skin and skull, Sarawak. Borneo, collected 

 by Cecil J. Brooks, Esq., B.M. 12. 10. 2G. 1. 



Closely allied to C. horsfieldi lyoni* (Sumatra), from 

 which it differs chiefly, or perhaps only, in the position of 

 the surface cusp of p^ and m, (third and fourth lower cheek- 

 teeth). 



This cusp is in C. persimilis situated close to the inner 

 longitudinal ridge of the tooth, so close, indeed, that its 

 anterior extremity is quite or very nearly in contact with the 

 ridge (at a point a little in front of the middle of tlie ridge). 

 In the numerous skulls of the allied forms of Cynopterus 

 which have passed through my hands the surface cusp is 

 either central in position or, if nearer the inner edge, quite 

 without any connection with this latter. 



Colour of fur as in C. horsfieldi and harpax. Size the 

 same, if not a little larger: — Forearm 79*5 mm. (largest 

 6\ h. lyoni seen, 77"5 mm.), maxillary tooth-row (c-m^, 

 crowns) 12 mm. 



The " Niadius" section of the genus Cynapierus was 

 liitherto known only from the ]\Ialay Peninsula (C. harpax), 

 Sumatra (C. horsfieldi lyoni), Java (C. horsfieldi horsfieldi)., 

 and Nias (C. princeps). But farther northward in Indo- 

 Malaya, in the Philippine Islands, this type of fruit-bat has 

 diflFerentiated into a distinct genus, Ptenochirvs (inner pair 

 of lower incisors absent, outer pair of upper incisors 

 shortened). The interest of the new species here described 

 lies chiefly in the fact that it adds Borneo to the area 

 occupied by the " Niadius" section of Cynopterus, thus 

 filling up the distributional gap hitherto sup}>osed to exist 

 between this section and its Philippine representative, 

 Pte?iochi7-ns. 



* Cat. Chir. i. pp. 632, 827. I take this opportunity to correct a slip 

 of the pen on p. 631 of the Catalogue : iu Hue 35 for " larger " read 

 " smaller." 



