652 



OTOPTERUS. 



Macrotus Gray, Proc. Zool. Soc., 1843, p. 21. (nee Leach, 

 Vespertil., 1816. nee Dej. Coleopt., 1833. nee Reid, Mar- 

 supialia, 1836.) Type Macrotus waterhousii Gray. 

 Ears large, united above and between eyes by membrane; tragus 

 acute, elongated; nose-leaf shaped like a horseshoe in front, triangular 

 behind; lower lip grooved, triangular wart in front; antebrachial 

 membrane developed; tail elongate, tapering, projecting beyond 

 margin of interfemoral membrane. 



KEY TO THE SPECIES. 



A. Ears longer than the head. 



a. Forearm over 50 mm. 



a/ Above dark reddish brown; yellow patch 



on hind back 0. waterhousii 



b/ Above dark grayish brown 0. mexicanus 



b. Forearm under 30 mm O. californicus 



. Ears as long as the head. 



a. Forearm over 60 mm 0. bocourtianus 



b. Forearm under 50 mm O. bulleri 



B 



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654 



FIG. CIX. OTOPTERUS WATERHOUSII. 

 ex Dobson, Cat. Chiroptera. 



614. waterhousii (Macrotus}, Gray, Proc. Zool. Soc., 1843, P- 2I - 

 WATERHOUSE'S LARGE-EARED BAT. 



Type locality. Island of Haiti. 



Geogr. Distr. Islands of Cuba, Haiti, and Jamaica, West Indies. 



Genl. Char. Similar to O.mexicanus, but color different; mem- 

 branes darker; nose-leaf blackish. 



Color. Above dark reddish brown, grading into yellowish brown 

 on a patch-like surface on each side of the posterior part of the dorsal 

 region ; base of fur white, also at base of ears posteriorly ; under parts 

 pale gray; ears brown; membranes black. 



Measurements. Total length, 91.2; tail, 26.4; forearm, 50.8; 

 thumb, 8.9; third finger, metacarpal, 38; fourth finger, metacarpal, 



