KERIVOULA. 93 
1. VESPERTILIO ADVERSUS, Horsfield (1824). 
Great-footed Bat. 
Extremity of ear broadly triangular, with the angle rounded 
off; upper half of outer margin straight. Tragus well developed, 
the extremity straight. Wings from the ankles and the sides of 
the body. Interfemoral membrane forming a very acute angle 
behind. Feet very large. Tail projecting beyond the membrane 
to some extent. Calcaneum very long, extending at least three- 
fourths of the distance between the ankle and the tail. Fur of 
moderate length. Second upper premolar extremely small, placed 
quite inside, in the angle between the first and third premolars, 
not visible from without. 
Dimensions.—Head and body about two inches; tail about 
one and three-quarters inch ; forearm about one and a half inch ; 
foot about half an inch. 
Habitat.—From Siam through Java, Borneo and the Celebes to 
the northern half of Australia. 
References.—Dobson, B.M. Catal. Chiropt. p. 292, pl. xviii. fig. 
4 (ear enlarged); Gould, Mamm. Austr, iii. pl. xlvii. 
2. VESPERTILIO AUSTRALIS, Dobson (1878). 
Small-footed Bat. 
Extremity of ear broad and very obtusely rounded ; upper third 
of outer margin deeply concave. Tragus well developed, the 
narrow extremity rounded and slightly curved outwards. Wings 
from the bases of the toes. Interfemoral membrane forming an 
obtuse angle behind. Feet of moderate size. Only the extreme 
tip of the tail projecting. Calcaneum extending about half-way 
between the ankle and the tail. Fur short. Second upper pre- 
molar small, but in the normal position and so visible from without. 
Brown, the extreme tips above and the terminal third below lighter. 
Dimensions.—Head and body about one and four-fifths inch ; 
tail and forearm about one and one half inch; foot about one-third 
of an inch. 
Habitat.—New South Wales. 
Reference.—Dobson, B.M. Catal. Chiropt. p. 317. 
Genus VI.—KERIVOULA, Gray, (1842). 
Muzzle narrow and elongated ; glandular prominences very 
small and indistinct. Crown of the head considerably vaulted. 
Nostrils simple, circular, sublateral. ars funnel-shaped, dia- 
phanous, studded with glandular papille; tragus long, narrow, 
and acutely pointed. Wings from the bases of the toes. Calcaneum 
