nilROPTERAX XOtFS 43 



It (liffi'i's tVom M. jiigularis in the following pai-ticulars : — 

 The lower aspect of llie basis craiiii ( basioccipital in front, basi- 

 splienoideum, presphenoideum) is distinctly keeled alon^-ilu^ iiicdian 

 line: in jugularis plani; the brain-case and rostrnni art- j)ropur- 

 tionally broader, the greater width of the latter being chiefly 

 due to the more strongly developed and more prominent supra- 

 orbital crests; the inter-premaxillary space is rather wider. The 

 ujjper canines, though of the same vertical extent as in jugulmHS; 

 •AVO somewhat heavier at base; the anterior lower premolar is 

 larger: rather more tlian 7^ '^^^'^ height, in jugular is about half 

 the height, of the posterior premolar. The gular sac is enormously 

 developed, 7.5 mm. wide in front, and (I mm. deep (thus pro- 

 portionally still larger than in aceiabulosus) ; in jugularh it is 

 very small: width in front about 3 mm., depth about 1.5 nnn. 

 The front margins of the ears touch each other in the middle line 

 (in so tar the ears are inter-connected) ; in jugular is the mar- 

 gins are distinctly separated. The lowTr leg is somewhat longer : 

 l!2.5 mm., as against 10.5-11 mm. \n jugular is. 



The colour of the single specimen is unsuitable for description, 

 the whole that can be safely said being that the fur is dark on 

 the upperside (apparently with lighter basis), greyish beneath. 



In the table below I give measurements of the type of M. 

 doriae and, for comparison, of a male and female of M. jugularis 

 (Brit. Mus. nos. 82. 3. 1. 31-32). 



M. doriae needs no closer comparison with M. acetabulosns, 

 which has some cranial and dental characters of its own , has 

 (as said above) the front margin of the ear-conch distinctly emar- 

 ginated below the tip, and Ms a markedly smaller species. The 

 only respect in which it closely approximates the Sumatran species 

 is the strong development of the gular sac. 



The interest of M. doriae is not only that it is an Indo- 

 Malayan representative of a group hitherto known from Mada- 

 gascar and S. E. Africa only; it lies still more in the fact that 

 it is, as shown by the brief description above , so closely related 

 to a Malagasy species as to differ only in trivial details. 



I have named this bat in honour of the Marquis Giacomo 

 Doria, who has always so generously placed his intimate knowledge 

 of Chiroptera and the rich collections of the Museum under his 

 charge at the service of specialists. 



