54 MAMMALIA. 
M. Geoffroy also separates from Vespertilio the 
Piecotus, Geoff. 
Ears larger than the head, and united on the cranium as in 
Megaderma, &c.; the tragus large and lanceolate—an operculum 
on their auditory passage. 
The common species—Vesp. auritus, L. 3 Buff. VII, xvu, 1. 
(The Long-eared Bat.) Still more abundant in France than the 
Bat. Its ears are nearly as large as the rest of the body. It 
lives in kitchens, houses, &c. There is also another discovered 
by Daubenton—Vesp. barbastellus, Gm., Buff. VII, 19, 2. 
Brown, with much smaller ears.(1) 
Finally, the Nyericrus, Rafinesque, has only two incisors in the 
upper jaw, along with the moderate ears and simple muzzle of the 
Vespertilio. The species known are from North America. (2) 
GALEoPITHECuS, Pall. 
The Galeopitheci differ generically from the Vespertilios, in the 
fingers, all armed with trenchant nails, which are not longer than 
the toes, so that the membrane which occupies their intervals, and 
extends to the sides of the tail, can only act as a parachute. The 
canini are denticulated and short like the molars. There are two 
upper denticulated incisors widely separated from each other; below 
there are six, split into narrow strips, like a comb, a structure alto- 
gether peculiar to this genus. The animals belonging to. it are 
found in the Indian Archipelago, on the trees, among which they 
pursue insects, and perhaps birds. If we can judge by the injury 
the teeth sustain from age, they use fruit also. Their cecum is 
very large. 
One species only is well ascertained, the Flying Lemur. 
Audeb., Galzop., pl. 1 and 2. Fur greyish red above, reddish 
(1) Add the Plee. timoriensis, Geoff.—PI. velatus, Isid. Geoft.—P1. mauget, Desm. 
—Plec. cornutus, Fab.—Vesp. megalotis, Rafin. [See Append. IT. of Am. Ed. 
N.B. As our plan permits us to class those animals only whose characters we 
have ascertained either from personal observation or from very complete descrip- 
tions and figures, we have been compelled to omit several of the genera of MM. 
Leach, Rafinesque, &c.; and while on this subject, we must observe that there is 
no family which stands more in need of revision than that of the Bats—a revision 
_ from nature and not by compilation. 
(2) Pespertilio lasiurus, Schreb., LXU, B.—V. noveboracensis, Penn. Quadr., pl. 
51, fig. 2.—Vesp. borbunicus, Geoff., Ann. Mus. VIII, pl. 46. . 
These three are the same. [See Append. IIT. of Ams Ed. | 
