Mammals from th& East Indian Archipelago. 251 



Of these, the most interesting are a new fruit-bat from 

 Sumatra allied to Gkironax and Baiionycteris^ but repre- 

 senting a new genus, and a beautiful parti-coloured Myotis 

 allied to M. weheri and bartelsi, but larger, and showing at 

 its maximum the striking red and black " dead-leaf^' colora- 

 tion that occurs in certain bats, of which the present is the 

 largest. 



-^THALODES, gen. nov. (Pteropodidse). 



Allied to Ghironax and Balionycteris. 



Muzzle broad ; lips splayed out. No tail; interfemoral 

 and calcar mucli reduced ; hind limbs furry to base of claws. 

 Wings to between the bases of the first and second toes. 



Skull without postorbital foramina ; premaxillse in simple 

 contact anteriorly. 



Tncisors j, the inner upper pair both slenderer and shorter 

 than the outer, in marked contrast to the condition in the 

 allied genera. Cheek-teeth 5; p-' very small ; pSvith strongly 

 developed antero-external basal cusp. Lower grinding-teeth 

 (pr-mi) broad, almost square, their shape recalling that in 

 IJyacopterus. 



Genotype, ^. alecto, sp. n. 



This new genus is one of a little group of Cynopterine 

 genera to which Chironax^ Balionycteris ^ and others belong, 

 as described in Andersen's Catalogue, but it differs markedly 

 in its combination of characters, though it would seem to be 

 most nearly allied to the other small forms Ghironax melano- 

 cephalus and Balionycteris macidata. 



The proportions of its incisors — the inner pair considerably 

 shorter and more slender than the outer — are unique, while 

 the presence of only one pair of lower incisors, the absence of 

 a tail, and the reduction of the interfemoral are all characters 

 by wliich it may be readily recognized. 



It is, therefore, a striking and highly interesting addition 

 to the known genera of fruit-bats. 



^thalodes alecto, sp. n. 



Size small, Ghironax melanocephaliis alone of this group 

 being less in size. Fur thick and woolly, closely covering 

 both the proximal part of the forearms, the whole of the 

 interfemoral membrane, and the hind limbs down to tlie claws. 

 Colour throughout dark smoky blackish, the face quite black. 

 Middle area of belly slightly lighter. Ears black, the edges 

 slightly thickened and lighter coloured. Membranes black 



