252 PROCEEDINGS OF THE ACADEMY OF [March 



1844. Pt[eronotus] Daviji Gray, Voyage of the Sulphur, I, Mammalia, p. 24. 



[Trinidad.] 

 1850. Chilonycteris gymnonotus Wagner, Abhandlungen Mathem.-Physik 



CI. Akad. Wissenschaften, Munchen, V, p. 179. [Cuyaba, Matto Grosso.] 



1854. Chilonycteris grjmnonotus Burmeister, Thiere Brasiliens, I. p. 75. 

 [Cuyaba, Matto Grosso.] 



1855. Ch[ilonycteris] gymnonotus Wagner, Suppl. Sclireber's Saugthiere, V, 

 p. 680, PI. 48. [Matto Grosso.] 



1855. Pt[eronotus] Davyi Wagner, Suppl. Sclireber's Saugthiere, V, p. 700. 



[Trinidad.] 

 1872. Pteronotns Davyi. Peters, Monatsb. K. Akad. AVissensch., Berlin, 



p. 361. [Brazil; Mexico.] (Part.) 



1878. Chilonycteris davyi Dobson, Catal. Chiropt. Brit. Mus., p. 453, PI. 

 XXIII. [Puerto Cabello; Venezuela.] 



1879. Chilonycteris davyi Alston, Biol. Cent.-Amer., Mamin., p. 36. [Mex- 

 ico; Venezuela; Trinidad; Brazil.] (Part.) 



1892. C[hilonycteris] Davyi Thomas, Ann. and Mag. Nat. Hist., 6th ser., X, 



p 410. [Trinidad; Dominica; Venezuela.] 

 1892. Chilonycteris davyi Thomas, Journal Trinidad Field Naturalists' 



Club, I, p. 162. [Trinidad.] 

 1902. D[ermonotus] davyi Miller, Proc. Biol. Soc. Washington, XV, p. 155. 



[Dominica; Trinidad.] 



Type Locolity. — Trinidad. 



Distribution. — Brazil; Puerto Cabello, "\'enezuela, and Trinidad and 

 Dominica in the West Indies. 



General Characters. — Size medium; character of the volar membranes 

 as described under the genus. 



Head. — Occiput dome-shaped and evenh' rounded; rostrum rather 

 depressed, broad. Ear rather elongate, acuminate; internal margin 

 with the internal ridge very distinctly developed and forming a rounded 

 lobe inferiorly, superiorly with a blunt but distinct shoulder, beyond 

 which infra-median point the internal margin is evenly arcuate, curving 

 back to the recurved and very bluntly falcate apex; external margin 

 carried forward inferiorly to the angle of the mouth, external shoulder 

 romided and median in position, superior portion of the external mar- 

 gin straight except for a marked concavity caused by the recurved 

 apex. Tragus subrectangulate, apical portion narrower than the basal 

 half; external margin sinuate; apex rounded; accessory lobe rather 

 small, subhorizontal, rounded, forming a distinct shoulder or ledge; 

 internal margin inferior to the accessory lobe, sinuate and with a dis- 

 tinct marginal thickening. Nostrils surrounded by a very slight raised 

 margin, and surmounted by a fleshy ridge, which is considerably ex- 

 cavated in the area superior to the nasal division ; lateral portions of 

 muzzle with a raised fleshy ridge, which is separated from the nose- 

 pad by a rather deep incision. Superior portion of the muzzle with a 

 median rounded swelling situated a short distance back from the nos- 

 trils. Labial chin-lappet strongly transverse, the lateral portions 

 rather inconspicuous and merging into the lip proper, median portion 



