RHYNCHONYCTERIS. 



609 



Tail shorter than the interfemoral membrane, but penetrating 

 the membrane and appearing on the upper surface ; muzzle very nar- 

 row, the extremity produced beyond lower lip; ears not attached; 

 ear conch narrow, attenuate; antitragus rounded, distinct; nostrils 

 oval, horizontal; wings from ankles; antebrachial membrane without 

 sac ; calcaneum longer than tibia. 



570. naso (Rhynchonycteris) , Wied, Schinz's Thierr., i, 1821, p. 179. 

 saxatilis Spix. Simiar. et Vespert. Bras., 1823, p. 62, pi. xxxv, 



fig. VIII. 



rivalis Spix. Simiar. et Vespert. Bras., 1823, p. 62, pi. xxxv. 

 lineata Temm., Mon. Mamm., n, 1835-41, p. 297. 



FIG. XCIV. RHYNCHONYCTERIS NASO. 

 No. 5695 Acad. Nat. Sci. Coll. Nat. size. 



LONG-NOSED BAT. 



Type locality. East coast of Brazil. 



Geogr. Distr. Guatemala through Central America to Brazil, 

 South America. 



Genl. Char. Those of the genus. Incisors small, weak; upper 

 canines with an internal basal cusp; first upper premolar small with 

 anterior basal cusp close to canine; diastema between canine and 

 second premolar; lower second premolar narrow, long. 



Color. Above brown, ends of hairs grayish, under parts grayish 

 white. 



Measurements. Total length, 53.3; tail, 41.9; forearm, 36.5; 

 thumb, 6.3; third finger, metacarpal, 34.2; fourth finger, metacar- 

 pal, 27.9; fifth finger, 25.4; tibia, 12.7; foot, 6.3. Skull: total length, 

 ii ; occipito-nasal length, 10; Hensel, 8.5; zygomatic width, 6.5; in- 

 terorbital constriction, 2.5; palatal length, 4; length of upper molar 

 series, 2.5; length of mandible, 6.5; length of lower molar series, 4. 



