7. ELEUTHERURA. 117 
gate. Grinders 3; false grinders 2, the front upper small, conical, 
lower larger. Wings from the sides of the back. Back to the origin 
of the wings, the shoulders, back of the forearms and the thighs, and 
the back of the legs hairy. Wings to the base of the toes. Thumb, 
lower joint moderate, enclosed in the membrane ; upper joint much 
larger, slender, free. Index finger clawed. Interfemoral mem- 
brane with a more or less distinct band on each side from base of 
tail to heel. The great blood-vessel from the armpit and groin 
simple until it nearly reaches the margin of the wing. 
Eleutherura, Gray, Voy. Sulph. p. 29,1854. Cynonycteris (part.), 
Peters, Mossamb. ; Wagner. Pachysoma, part., Tomes. 
The fur at the back of the neck and withers converging and form- 
ing an indistinct narrow crest. The toes strong, compressed, Heel- 
bone short, strong. 
1. Eleutherura zgyptiaca. B.M. 
Fur dull grey brown ; back rather narrow, slightly arched in on 
the sides; belly and hair on underside of wings ashy ; forearm-bone 
33 inches. 
Pteropus egyptiacus, Geoff. Ann. Mus. xv. p. 96. Pachysoma egyp- 
acum, Toma, P.Z. Hise, p. 56. Pietopa Geottoyil, fan, 
Monog, i. p. 197, t. 15. f. 14, 15 (skull), ii. p. 85, t. $6. f'16. Xan- 
tharpyia egyptiaca, Gray, List Mamm. B. M. 
Hab. North Africa: Egypt, Burton, Christie; Abyssinia, Harris. 
“ West Africa, Senegal,” Temm. 
Length of skull 12 inch. The fourth or last upper grinder 
square, moderate-sized ; last lower smaller, oblong ; the lower front 
false grinder thick, strong; upper cylindrical. Penis-gland soft ; 
scrotum large, bald, rugose. 
2. Eleutherura unicolor. B.M. 
Fur soft, uniform grey brown, rather paler below; hair one- 
coloured; ears large; wings pale, with white hairs near margin ; 
forearm 3 inches 8 lines; tail very short; false grinders in each jaw 
well developed, lower largest. 
Hab. West Africa: Gaboon, Verreaux. 
See Pteropus mollipilosus, Allen, Proc. Acad. N. Sci. Philad. 1861, 
p- 159. Head small; ears large; tail very small, free; fur 
olive-brown, brighter on the back of the neck. Hab. 
Western Africa (Gaboon), Du Chaillu. “The intermaxillary 
bone of the skull is not thrown forwards and downwards as 
in other Pteropi, but is on the same level as the roof of the 
mouth, the first upper premolar larger than the incisors, the 
same tooth of lower of a good size and less tubercular than 
in other species,”—Allen. Perhaps male of preceding. 
