3G2 ^h\ O. Thomas on 



To this the foHowing new Central-American form wouKl seem 

 to be mo3t nearly related : — 



Eplesicus chiriguinu.t, .sp. n. 



Allied to E. audinus, but with longer forearm and legs 

 and fluffier fur. 



Size, as ganged by skull, not exceeding that of E. andinu!*, 

 but the forearm and legs are materially longer and the length 

 *o£ the trunk, as given by collector, is greater. Fur long, 

 soft, fine and rather woolly, more so tlian in the rather 

 straight-haired andimis ; hairs o£ back about 8 mm. in length. 

 General colour blackish brown, the lighter ends to the hairs 

 of tiie posterior back short and little conspicuous. Under 

 surface practically as dark as upper, therefore darker than in 

 andinus. Membranes black throuiriiout. 



Skull al)out as in unduuis, though the supraorbital edges 

 are more sharply angular. Canines of normal slenderne.ss, 

 while in aiidinus they seem to be always comparatively short 

 and broadly conical; but how far the difference may bean 

 effect of wear I cannot be sure. 



Dimensions of the type (the italicized measureuK'nts taken 

 in flesh by collector) : — 

 Forearm 46" 5 mm. 



Head and I>odi/ 10; tail 30 ; ear 11/.. Third finger, meta- 

 carpus AW; lirst phalanx 16"5 ; lower leg and hind foot 

 (c. n.) 28. 



Skull, greatest length '16'2 ; zygomatic breadth ll'l ; 

 intertemporal bieadlh 4 ; breadtli of brain-case 7*8 ; palato- 

 sinual leniith 7 ; front of canine to back of m^ 6'3 ; front of 

 ;/ to h-M-koi m^ 4-2. 



JIah. Chiriqni. Type from Boquete. Alt. 4000'. 

 Type. Adult male. B.M. no. 3. 3. 3. 1. Original 

 num'ber i)0. Collected Gih April, 1902, by H. J. Watson. 

 Presented by Oklfield Tliomas. 



This species is recognizable by its long forearm and legs as 

 compared with E. andmus of Colombia. E. propinquiiSj 

 Peters, with which Mr. Osgood has shown E. (jaumen\ 

 Allen, to be synonymous, is also characteiizod by its much 

 paler under surlace and smaller teeth. The only other 

 Central-American Ejdesicus is E. fiiscus mii'adorensis, a 

 member of the quite different serotinus group. 



Next we may take two closely allied species characterized 

 by their large rounded and swollen skulls, very different from 

 the rather low flattened skulls of the S. -American species 

 hitherto known : — 



