60 BULLETIN 43, UNITED STATES NATIONAL MUSEUM. 



Millimeters 

 Fifth digit : 



Length of fifth metacarpal houe 16 



Length of first phalanx 10 



Length of second phalanx 9 



Length of head 8 



Height of ear 30 



Height of tragus 13 



Length of thigh 



Length of tibia 21 



Length of foot 9 



Length of tail 37 



Mfusnremenls from fir.ff edition of Mono<jraph . 



List of specimens. 



Collected by C. S. McCarthy. 



Genus EUDERMA H. Allen. 



Euderma H. Allen, Proc. Acad. Nat. Sci. Phila., 1892, 467. 



EisUotus J. A. Allen, Bull. Amer. Mus. Nat. Hist., Ill, No. 2, Feb. 20, 1891, 195. 



Diagnosis. — Two premolars in each jaw. Auricle coustricted at base, 

 the simple internal and external basal ridges holding it to the corre- 

 sponding borders of the base of tragus. The internal hem narrow, not 

 over one sixth width of auricle. External basal lobe sharply defined 

 posteriorly by the external basal ridge and is without ridge or lobule; 

 post rictal wart absent. External basal lobe of tragus absent. Snout 

 simple, broad median depression between nostrils. Membranes as in 

 Corynorhimis. Auditory bulla not united on inner margin to skull, and 

 reaches to a point opposite middle of glenoid cavity. General character 

 of the teeth as in Corynorhinus. 



1 



Denial Formula. 



o 2 



-Molars - ; Premolars - ; 



Canines ^ ; Incisors ^, X 2 = 34 teeth. 



