Zoological Society. 407 



This species is characterized by its sooty-black colour. My son- 

 in-law, Mr. J. V. G. Smith, collected it at Pernambuco, and sent two 

 females to the Brit. Mus. 



Vampyris cirrhosum, Spix, Vesp. Braz. t. xxvi. f. 3, evidently be- 

 longs to the same genus, if indeed it is distinct from the species above 

 noticed. He describes his specimen as chestnut. It is to be ob- 

 served that his figure is only one-third of the natural size of the 

 animal he described, although it is not noticed on the plate. 



3. Ametrida. 



Ch. gen. — Membrana interfemoralis sublata, truncata. AI<b a digi- 

 torum basi extensse. Crura nuda. Caput rotundum, rostrum per- 

 breve, depressum, latum; frons rotundata. Mentum triangular! 

 tuberculorum mole scabrum. Pollex elongatus, articulo superiore 

 longo, attenuato, inferiore brevi. Denies incisores ^ ; superiores 

 medii, elongati, conici, acuti ; inferiores laterales, parvi, incisi. 

 Ch, gen, — Interfemoral membrane rather broad, truncated. Wings 

 from the base of the toes. Legs bald. Feet small. Tail none. 

 Head round ; muzzle very short, depressed, broad ; forehead rounded. 

 Ears moderate, lateral. Chin with a triangular group of tubercles 

 in front. Thumb elongated, the upper joint long, slender ; the lower 

 short. Cutting teeth |- ; the upper middle elongated, conical, acute ; 

 lateral and lower small, notched. 

 A. centurio, Epauletted Araetrida. 



Ch. $p. — Sooty-brown ; forehead, chin, and a spot on each shoulder 

 at the base of the wing white. Heel-bone one- third the length of 

 the shin. Arm-bones 11 lines. Ears moderate, rounded at the end, 

 rather arched out at the sides. Tragus moderate, denticulate at the 

 tip and outer side. Nose-leaf ovate, lanceolate. 



Hab. Brazils, Para. Collected by Mr. J. P. G. Smith. 



4. NicoN. 



Ch. gen, — Membrana interfemoralis distincta, brevis, angulariter inse- 

 cata. Ala ab summo talo tensse. Pedes elongati, liberi. Os calcis 

 brevis. Cauda perbrevis, inclusa, in media membrana interfemo- 

 rali superior. Mentum stria tuberculis parvis marginata insigne. 

 Pollex elongatus ; articulo superiore attenuato, inferiore incluso. 

 Denies incisores f ; duo medii superiores largiores, truncati ; infe- 

 riores seriatim fornicati. 



Ch, gen. — Interfemoral membrane distinct, short, angularly cut 

 out. Wings from the upper part of the ankle. Feet elongate, free. 

 Heel-bone short. Tail very short, enclosed, superior in the middle 

 of the interfemoral. Ears lateral. Chin with a groove in front, 

 edged with small tubercles. Thumb elongate; upper joint thin, 

 longest ; lower enclosed. Cutting teeth ^ ; two middle upper larger, 

 truncate ; lower in an arched continuous series. 



N. caudifer. Leach's Nicon = Glossophaga caudifer, Geoff. Mem. 

 Mus. iv. 418. 1. 17 = Monophyllus Leachii, Gray, Zool. Sulph. 18. 

 Hab. Central America. 



