190 BULLETIN 57, UNITED STATES NATIONAL MUSEUM. 



Genus AMORPHOCHILUS Peters. 



1877. Amorphochilus Peteks, Monatsber. k. preuss. Akad. Wissensch., 

 Berlin, p. 185. 



1878. Amorphochilus Dobson, Catal. Chiropt. Brit. Mus., p. 357. 



Type-species. — Amorphochilus schndblii Peters. 



Geographic distribution. — Tumbez, on the Gulf of Guayaquil, Peru. 



Number of forms. — The type species. 



Characters. — Like Furipterus, but height of braincase, including 

 audital bullse, fully equal to distance from frontal angle to most pos- 

 terior point of occiput ; palatal emargination not extending halfway 

 from hamulars to posterior molars; nostrils opening forward at 

 extremity of a conspicuous, snoutlike elevation ; chin with a triangu- 

 lar, downward-turned flap, margined at each side with a small 

 roundish wart ; lower lip thickened at angle of mouth and with large 

 warty protuberance slightly in front of middle ; no angular elevation 

 on upper lip at point where this occurs in Furipterus. 



Species examined. — This genus is still known from Peters's de- 

 scription and figures only. 



Family THYEOPTEEID^E. 



1831. Vespertiliones (Vespertilionidw) (part; Noctilionina, part) Bona- 

 parte, Saggio di una distrib. metodica degli Anim. Vert., p. 14. 



1838. Vespertilionidce (part; Nociilionina, part) Gray, Mag. Zool. and Bot, 

 II, p. 498, December, 1838. 



1840. Gymnorhina (part; Gymnura, part) Wagner, Schreber's Saugthiere, 

 Supplements, I, p. 466. 



1842. Ts'oetilioninew (part) Lesson, Nouveau Tableau du Regne Animal, 

 Mamm., p. 16. 



1855. [Vespertilionidce] " Vespertilionides " (part; Molossina, part) Geevais, 

 Bxped. du Comte de Castelnau, Zool., Mamm., p. 55. 



1856. Vespertilionidce (part) Tomes, Proc. Zool. Soc. London, p. 172. 



1865. Vespertiliones (part) Peters, Monatsber. k. preuss. Akad. Wissensch., 

 Berlin, p. 258. 



1866. Vespevtilionidai (part; Natalina, part) Gray, Ann. and Mag. Nat. 

 Hist., 3d ser., XVII, p. 90, February, lSOfi. 



1870. Vespertiliones (part; Vespertiliones, part) Fitzinger, Sitz.-Ber. k. 

 Akad. Wissensch., Wien, Math. Naturwissensch., Classe LXII, Abth. I, 

 p. 66. 



1875. Vespertilionidce (part; Miniopteri, part) Dobson, Ann. and Mag. Nat. 

 Hist., 4th ser., XVI, p. 349, November, 1875. 



1878. Vespertilionidce (part; Miniopteri, part) Dobson, Catal. Chiropt. Brit. 

 Mus., p. 170. 



1886. Vespertilionidce (part; Miniopteri, part) Gill, Standard Natural His- 

 tory, V, p. 166. 



1891. Vespertilionidce (part; Thyropterine division) Flower and Ly'dekker, 

 Mammals, living and extinct, p. 060. 



1892. Vespertilionidce (part; Natalini, part) Winge, Jordfundne og nulevende 

 Flagermus (Chiroptera) fra Lagoa Santa, Minas Geraes, Brasilien, p. 24. 



1899. Natalidm (part) Miller, Bull. Araer. Mus. Nat. Hist, XIII, p, 245, 

 December 23, 1899. 



