NYCTINOMUS ^GTPTIACUS. 
151 
MOLOSSID^. 
Tail thick, produced far beyond the posterior border of the interfemoral membrane 
(except in Mystacops i); legs short and strong; fibulse well developed ; feet broad; 
first toe, and generally the fifth, thicker than the others and furnished with long, 
curved hairs; well-developed callosities at the base of the thumb; upper incisors 
strong. 
NYCTINOMUS. 
Nyctinomus, E. Geoffr. St.-Hil. Descr. de TEgypte, Hist. Nat. ii. 1818, p. 128. 
Muzzle broad, very obliquely truncated, projecting considerably beyond the lower 
lip; nostrils terminal, more or less circular; upper lip expansible, deeply grooved with 
vertical wrinkles. Ears large, broad, thick, and united more or less by the bases ot 
their inner margins, with distinct antitragus. The proximal half of the tail enclosed 
within the interfemoral membrane, the remainder free. Upper incisors separated in 
the middle line. 
Dentition : i. ^ or c. ^ (^) oi" | 
Distrihntion .—Tropical and warmer parts of both hemispheres. 
Nyctinomus ^egyptiacus, E. Geoffr. 
Nyctinomus cegyptiacus, E. Geoffr. St.-Hil. Descr. de I’Egypte, Hist. Nat. ii. 1818, p. 128; Atlas, 
pi. 2. no. 2 ; Desm. Mamm. 1820, p. 116. 
Dysopes gcoffroyi, Temm. Monogr. Mamm. i. 1827, p. 226, pi. xix.; Wagner, Sclireber, Saugetli., 
Suppl. i. 1840, p. 469; ibid. vol. v. 1855, p. 703; Euppell, Mus. Senck. iii. 1845, p. 155 ; 
Gasco, Viaggio in Egitto, 1876, t. i. p. 96; Heuglin, Eeise N.O.-Afr. ii. 1877, p. 28. 
(^?) Dysopes rupelii, Temminck, Monogr. Mamm. i. 1827, p. 224, pi. xviii. 
Nyctinom.us geoffroyi, Fitz. & Heugl. SB. k. Akad. Wien, liv. i. 1866, p. 545. 
E. Geoffroy St.-Hilaire gave the length of the type specimen as 80 millim., which 
he said was the dimensions of the Nyctinomus of Bengal, but he gave no other 
measurements. The accompanying figure (p. 152) is taken from the original plate, 
reduced by one-third diameter. 
^ This term was substituted by Flower and Lydekker (‘ Mammals Living and Extinct, 1891, p. G61) for 
Mystacina, Gray, used by Dobson, as the latter term was preoccupied by Boie, 1822. 
