364 Mr. 0. Thomas on 



skull nnd long soft fur. Colour, so far as can be judged on 

 a 8|)irit-spocime!i, much as in that species. Sides of muzzle 

 much swollen, tumid, the edges of the nostrils not projecting. 

 Ears rather large, their outer margin with a rounded basal 

 lobule. Tragus large, straight, not bowed inwards, with low 

 basal lobule. Wings to base of fifth toe. Last vertebra of 

 tail exserted. 



Skull larger than that of montosus and rather more normal 

 in general shape, less rounded and swollen. Brain-case with 

 well-defined sagittal ridge. Intertemporal breadth equally 

 exceeding that of the ordinary species of the genus. Teeth 

 rather larger throughout. 



Dimensions of the type (measured on the spirit-speci- 

 men) : — 



Forearm AG mm. 



Head and body 55 ; tail 44 ; ear IG ; tragus on inner 

 edge 6 ; third finger, metacarpus o9, first phalanx 16. 



Skull : greatest length 16*2 ; condylo-basal length 15'9 ; 

 basi-sinual length 13 ; zygomatic breadth 10*8 ; inter- 

 temporal breadth 4*5; breadth of biaiu-case 8 ; palato-sinual 

 length 6*8; front of canine to back of m' 6*3; front of jj* to 

 back of 7)1* 4'2. 



Hab, Chanchamayo, Ciizc % Peru. 



7ype. Adult male in alcohol. B.M. no. 94. 8. 6. 1. Col- 

 lected by J. Kalinowski. One .specimen. 



Along the coastal regions of Ecuador and N. Peru the 

 members of this goinis ar(^ brownish, approximating to Proul's 

 brown, cinnamon-brown, &c. — in marked contrast to the more 

 or loss blackish E. andinus of Colombia and the higher 

 ^roinids of the Andes. Specimens from Piura, Peru, are 

 topotypicid of innoxiun, Gerv., while quite similar forms are 

 in the collection from Eton, Peru, to the south, and Santa 

 Rosa, Ecuador, further noiih, the IMusoum containing thirteen 

 specimens in all. In tluse the forearm is about 37-38 mu). 

 in length, and the skull 14*9 to 155 uim. E. espachr, Cabrera, 

 from Bal>ahoyo, with fuiearm 38 and skull 15*4 mm. in 

 length, must no di ubt be considered the same form, as it is 

 expressly stated to be very p;ile in colour. 



But among our specimens arc two from the island of Puna 

 so much smaller than the others as to domaud distinction : — 



Kptesicus I'unicus, sp. n. 



Colotu- as in E. innoxius, but size, and especially skull, 

 markedly smaller. 



