EASr AFPIOAN MAMMALS IN NATIONAL MUSEUM. 99 



Specirnen. — Of: (3 in alcohol, as foIlo>v>i: 



Uganda: Goudokoro (Loring). 



Externally lUis specimen agrees in all details with the description 

 of Chercplion emini. The skidl is i>eculiar for a GhserepTion, however, 

 having a very flat braincase and incompletely ossified preraaxillfie, 

 approaching in these charactei*s certain species of Nyctinomus. As 

 uo description of the skull, with measurements, of CJiserepTion emini 

 has ever been published, I "WTOte to Mr. Oldficld Tliomas asking for 

 information regarding it, sending liim a rather complete description 

 of this specimen from Gondokoro. His reply, in part, is as follows: 



The type skull of Ckxrephon emini is unfortunately much smashed, consisting of 

 but little more than the muzzle, wliich accounts for the absence of published measure- 

 ments. What there is of it, however, agrees so nearly with what you say of yours 

 that it seems probable that the two are the same, as you suppose. The color of the fur 

 is quite the same and there is but little difference in the measurements. The median 

 ossification between the premaxillae is very imperfect, thin, and with vacuities in it, 

 so that one might expect to find examples without a median connection at all. The 

 maxillary tooth row is 7.1 mm. Incisors and small premolar as you describe. Owing 

 to the imperfection of the skull, the shape of the braincase is not <leterminable. 



It seems probable then that this specimen from Gondokoro is emini, 

 .aid that the skull of that species is quite Nydinomu s-\ike, though 

 with less emargination of the anterior palate than is usual in Nyctino- 

 mus. The generic separation of Chsei'ephon is perhaps questionable. 



A more complete description of the Gondokoro specimen, an 

 adult female in alcohol, with skull removed, number 166688, U. S. 

 N. M., follows: Nose pad large, protruding, and glandular, with 

 distin(;t leaflike, serrated upper margin and median dividing ridge; 

 lips deeply fuiTOwed by six-seven vertical %vrinkles on each side. 

 Ears large, subquadrate, connected by the inner margins and a wide 

 supplemental fold, winch forms a deep sac with large posterior 

 eati*ance, extending under marginal connection in the form of a 

 glandular protuberance to the base of the hard, triangular nose pad 

 whore there are four small, circular, wartlike, stiffly bristled spots, 

 apparently glandular openings. Anterior side of ears slightly con- 

 vex, tlie margin folded backward nearly to first tip corner; posterior, 

 or rather upper, margin concave anteriorly and convex posteriorly; 

 keel conspicuous, broad basally and gently tapering toward center 

 of anterior margin of ear; antitragus large, rounded; tragus small, 

 subquadrate, the anterior and lower sides shghtl}- emarginate; 

 throat with a small bristly glandular spot set in center of large bare 

 spac« ; wing from front side of lower half of tibia ; tail free for about 

 tlu'ee-fifths its length; fur extending on wing above to line from 

 middle of humerxts to middle of femur, and only slightly on to base 

 of iut<>rfemoral membrane and inner edge of antebrachial membrane: 

 beneath, the membranes are virtually naked, except for a few white 

 haii's on antebrachial membranes, a strip of white hair crossing 



