658 CHROTOPTERUS. TONATIA. 
Fic. CX. CHROTOPTERUS AURITUS. 
No. 105607 U. S. Nat. Mus. Coll. 
finger, metacarpal, 71; tibia, 36.8; ear, 40.6; tragus, 11.4. Skull: 
total length, 25; zygomatic width, 13; interorbital constriction, 4.5; 
height of braincase at bulle, 11; mastoid breadth, 10.5; palatal 
length, to alveoli of incisors, 10; length of mandible, 16. 
144. Tonatia. 
152, CEH PEt MESS ga, 
I—I i 3 
Ww |G2 
Tonatia Gray, in Griff., Cuvier’s Anim. Kingd., v, 1827, p. 71 (foot- 
note). Type Vampyrus bidens Spix. 
Lophostoma D’Orbigny, Voy. Amér. Mérid., 1847, p. 11. 
Horseshoe-shaped portion of nose-leaf very narrow at nasal 
aperature and bound to the muzzle; chin with central wart and 
smaller lateral ones; ears large with a small posterior basal band; 
tail short, perforating interfemoral membrane which is large; wing 
membrane extending to metatarsals or tarsals; skull long and narrow. 
621. amblyotis (Phyllostoma), Wagn., in Wiegm., Archiv. f. Naturg., 
1843, p. 365. 
ROUND-EARED Bart. 
Type locality. Mato Grosso, Brazil. 
Geogr. Distr. Bogava, Chiriqui, Panama, to Brazil. 
Genl. Char. Ears large; tibia long, wing membrane extending to 
