656 VAMPYRUS. CHROTOPTERUS. 



619. spectrum (Vespertilio), Linn. Syst. Nat., i, 1758, p. 31; i, 1766, 



p. 46. 

 SPECTER BAT. 



Type locality. "America Australi." 



Geogr. Distr. Guatemala, Central America, to Brazil, South 

 America ; Island of Jamaica. 



Genl. Char. Muzzle long and narrow; nose-leaf lanceolate ovate, 

 horseshoe with free expanded margin, laterally turned upward; wide 

 groove bounded by a narrow naked ridge on lower lip; ears large, but 

 shorter than head, rounded above; tragus terminating in an acute 

 process; wing membrane extending to basal third of outer toe; inter- 

 femoral reaching beyond the feet; tail none; canines very large; 

 incisors, ^. 



Color. Above reddish brown, beneath reddish yellow. 



Measurements. Total length, 215.9; tail, 76.2; forearm, 106.6; 

 thumb, 33; third finger, metacarpal, 73.6; fourth finger, metacarpal, 

 76.7; fifth finger, metacarpal, 88.9; tibia, 50.8; foot, 30.4; ear, 45.7; 

 tragus, 13.9. Skull: total length, 51; occipito-nasal length, 43; Hen- 

 sel, 38.5; zygomatic width, 23.5; interorbital constriction, 9; palatal 

 length, 23; length of upper molar series, 16; length of mandible, 34; 

 length of lower molar series, 18. 



143. Chrotopterus. 



Chrotopterus Peters, Monatsb. K. Preuss. Akad. Wiss. Berl., 1865, 

 p. 505. Type Vampyrus auritus Peters. 



Two lower incisors; second lower premolar very small and drawn 

 inward. 



620. auritus (Vampyrus}, Peters, Abhandl. K. Preuss. Akad. Wiss. 



Berl., 1856, p. 505, pi. n, figs. 1-5. 

 PETERS' VAMPIRE BAT. 



Type locality. Mexico. 



Geogr. Distr. Eastern Mexico into South America to southern 

 Brazil. 



Genl. Char. Ears large; wart in center of lower lip with narrow 

 elevation on each side; two warts on chin divided by groove; incisors, 

 j^; upper middle incisors directed inward; first upper premolar 



