44 



C. intermedins: Forearm length 34-36 nini. Metacarpalia: ni>IV>V; 1. phalanges: 

 III>IV>V. Plagiopatagium inserts at the proximal metatarsus. 



C. periosiis: Largest species of tlie genus. Forearm length 40.4 nmi. No data of my own 

 referrmg to gross morphology. 



Choeronycteris 



C. mexicana (fig. 22): Middle-sized microchiropteran (as a nectar feeder quite large) with 

 distinctly elongated muzzle. Nose leaf and auricles small, short ears (rounded-triangular 

 and in dorsal view looking like dolpliin flippers). Small tragus, with its basis merely 

 profiled. 



Forearm length 42-47 nmi. Metacarpalia and 1. phalanx III>IV>V. Plagiopatagiimi hiserts 

 at the tarsus, uropatagium present, entirely includmg the short tail (only first tliird of the 

 tail membrane). Calcar strong and straight, about same size as foot. 

 Pelage brownish grey to brown, ventrally brightened. Hairs only dark at the distal tip, the 

 shaft is light. Wing membranes brown, but not as dark as in Choeronisciis. 



