NO. 5 MAMMALS OF PANAMA GOLDMAN 197 



pied the same cave and are indistinguishable from the latter species 

 in color their specific distinctness seems clear. They agree with the 

 type from Costa Rica in decidedly smaller size, as compared with 

 H. p. aztecum. Others were found inhabiting the tunnel of an old 

 mine at 2,000 feet near Cana. 



Under the name Hemiderma castaneum seven specimens collected 

 by W. W. Brown, Jr., at Calidonia, near Panama, were recorded by 

 Bangs (1906, p. 213). Hahn (1907, p. 112), in reviewing the group, 

 has shown that these specimens were erroneously identified ; they are 

 referred by him to H. p. astecum. The type of H. castaneum has, 

 therefore, remained unique until the present .time. 



Specimens examined : Cana, 4. 



Subfamily STURNIRINAE 



Genus STURNIRA Gray 



Owing to peculiar and highly specialized tooth structure the genus 

 Sturnira has been placed in a separate subfamily. Externally it is 

 not very unlike some of the other Phyllostomidse, one of the best 

 distinguishing characters being the conspicuous tufts of stiff yellow- 

 ish or rusty reddish hairs present in males near the front of the 

 shoulder. There are no facial stripes. The nose leaf is small and 

 the ears short and pointed. There is no external tail and the calcar 

 is very small. The interfemoral membrane is reduced to a narrow 

 fringe densely furred to the margin. The toes are haired to the base 

 of the claws. In general form the skull resembles those of Vampy- 

 ressa and Vampyrops, but the dentition is widely different. A cranial 

 feature shared with Vampyressa is the extension of the nasal opening 

 backward at the expense of the nasals. The teeth are 32 in number. 



STURNIRA L1LIUM PARVIDENS Goldman 



Northern Yellow-shouldered Bat 



Sturnira lilium parvidens Goldman, Proc. Biol. Soc. Washington, Vol. 30, 

 p. 116, May 23, 1917. Type from Papayo (about 25 miles northwest of 

 Acapulco), Guerrero, Mexico. 



The distinguishing characters of the yellow-shouldered bat in 

 Panama are the same as those of the genus. The dark tips of the 

 pelage give the back a dark brown tone, but the under color of the 

 fur is gray. The forearm measures about 44 millimeters. 



