SIZE.—Head and body, 3 inches; tail, 2 inches; expanse, 19 inches.
This bat was described by Hodgson ('Ann. Mag. Nat. Hist.' 1855), but there is some doubt about it, and it has been classed as a Lasiurus and also with Scot. ornatus and Vesp. formosa, but Jerdon thinks it a distinct species. I cannot find any mention of it in Dobson's monograph.
This is also the genus Murina of Gray. Dr. Dobson explains his acceptance of the former term in the following way: that he first accepted Murina on the score of priority in a paper showing that Harpiocephalus and Murina must be united in a single genus; but finding afterwards that Gray had founded Murina on a specimen of what he believed to be Vesp. suillus (Temm.), but which was in reality a specimen of a very different species from Darjeeling, belonging to the same section of the genus as Vespertilio harpia (Temm.) the type of his genus Harpiocephalus, it remained therefore either to discard both names or to retain Harpiocephalus, in which course he was supported by Professor Peters, to whom he mentioned the facts.
Horsfield's genus Lasiurus is included in this one, though Jerdon considers it distinct from Murina.
Muzzle elongated, conical; nostrils prominent, tubular; produced beyond the upper lip, opening laterally or sublaterally, emarginate between; crown of the head scarcely raised above the face line; ears thin, generally covered with glandular papillæ; tragus long, attenuated towards the tip, and inclined outwards; thumb very large, with a large, strongly curved claw; wings around interfemoral membrane very hairy.—Dobson.
Dentition: Inc., 2—2/6; can. 1—1/1—1; premolars, 2—2/2—2; molars, 3—3/3—3.
[NO. 99. HARPIOCEPHALUS HARPIA.]
Lasiurus Pearsonii (Horsfield) (Jerdon's No. 50).
HABITAT.—Darjeeling and Khasia hills.
DESCRIPTION.—"Fur above very soft, silky, and rather long; colour on the head, neck, and shoulders brownish grey, with a ferruginous cast, variegated with whitish hairs; the rest of the body above, with the base of the membrane, the thighs and the interfemoral membrane, have a deep bay or reddish-brown hue, and delicate hairs of the same colour are scattered over the membrane and project from its border; the body underneath is thickly covered with a grey fur, which is paler on the breast and body; the interfemoral membrane marked with regularly parallel transverse lines" (Horsfield). Ears ovoid; tragus rather long, nearly straight, acute at the tip (Jerdon). Muzzle rather short, obtusely conical; end of nose projecting considerably beyond the lip, consisting of diverging tubular nostrils opening laterally, with a slight emargination between each (Dobson).