There is a good figure of the head of this bat in Dobson's Monograph; it was obtained by Dr. J. Anderson at an elevation of 4500 feet at Bhamo.
[NO. 82. VESPERUGO PACHYOTIS.]
DESCRIPTION.—"This species is readily distinguished by the peculiar thickness of the lower half of the outer side of the ear-conch, which appears as it were excavated out of the thick integument of the neck; tragus short, curved inwards."—Dobson.
This bat is more fully described with three illustrations in Dobson's Monograph; he does not mention where it is found, so it may or it may not be an Indian species.
[NO. 83. VESPERUGO ATRATUS.]
Syn.—NYCTICEJUS ATRATUS.
HABITAT.—Darjeeling.
DESCRIPTION.—Head broad; muzzle obtuse; upper labial glands largely developed; ears large, oval, with rounded tips, which in the natural position of the ears appear acute, owing to the longitudinal folding of the outer side of the conch on the inner, commencing at and almost bisecting the tip (Dobson). Fur long, dense and black; Jerdon says rich dark brown; paler beneath.
SIZE.—Head and body, 1·9 inch; tail, 1·8 inch.
HABITAT.—Chybassa, Jashpur, and Sirguja.