420 OTOPTERUS. 



Otopteriis, Flow. & Lyddek Mamm. Liv. & Extinct, 1891, p. 673. 



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

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

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

 brane developed; tail elongate, tapering, projecting beyond margin 

 of interfemoral membrane. 



Fig. 93. OTOPTERUS MEXICANUS. 



No. 2404 Am. Mus. Nat. Hist. Coll. 



Skull twice nat. size. Incisors enlarged 6 times. 



605. californicus. {Macrotus), Baird, Proc. Acad. Nat. Scien. Phil., 

 1858, p. 117. 



Type locality. California. 



Geogr. Distr. Limits of range not defined. 



Genl. Char. Similar to O. 'li'aterhousii. Auricle longer than 

 head; basal lobes developed; nose leaf with defined lower border ; 

 internal border of tragus thickened, and revoluted portion at base of 



