480 jMi". 0. Thomas on 



I^V.— T^?y Callicebuf5 atid Eumops/'om S. America. 

 By Oldfield Thomas. 



(ruUished by permission of the Trustees of the British Museum.) 



CalUcehus toppini, sp. n. 



Allied to and of the same grizzled brown colour as C. cu- 

 preus. Crown-hairs simihirly tipped with buffy, but along 

 the front edc^e o£ the hairy part of tiie foreliead the liairs are 

 black, thus" forming an indistinct blackish frontal band. 

 Belly and terminal part of limbs red, as in cupreus, but on 

 tlie hind legs the red is rather more extended, comnig up to 

 cover the knee. Hairs on ears dark rQddisli brown, lail- 

 hairs mixed grey and blackish, as in cupreus, but those on 

 the proximal two-thirds are tipped with bhick, not with wliite 

 or bufEy as in the other species of tliis group. 



dimensions of skull : — jn c 



Greatest length 65-6 mm. ; basal length 50;_breadth ot 

 brain-case 35-5; premolars and molars together l:r2. 



Hub. Rio Tahuamanu, N.E. Peru, n^ar Bolivian Boun- 

 dary. About 12° 20' S., 6b° 45' W. 



Tijpe. Adult female. B.M. no. 14. ?>. 3. 3. Collected 

 and presented by Capt. II. S. Toppin. 



From all the members of the group with reddish ears this 

 species may be distinguished by the dark tips to its caudal 

 hairs. C. cvpreus has also no black hairs on the forehead, 

 while C. usto-fuscus, which is darker throughout, has many 

 more. C. pcenulatus has an elongated mantle, paler than 

 the rest of the back. m • i 



I have named the species in honour of (/apt. ioppin, wlio, 

 in spite of great climatic dilHculties, succeeded in bringing 

 home for the National Muscuin several mammals from an 

 almoot unknown part of y. America. 



EuDiops dahhenel, sp. n. 



The largest American Molossine bat, exceeding 7?. pero^/s 

 in forearm and skull-length. 



Size large, the body thick and clumsy, forearms not long 

 in proi-ortion to the bulky body and broad head. Ears vi 

 about normal size, not greatly enlarged, as in y^ero^w (i hey 

 are, however, thickened in both sp.'cimens, and may have 



