•134 



EMBALr.OXUKlBJE. 



0"-2 X 0"-15, forearm 2"-35, thumb 0"-35 ; third finger — metacarp. 

 2"-25, Ist ph. 0"-9, 2ud ph. l"-2; fourth finger — metacarp. 2"-l, 

 1st ph. 0"-7, 2nd ph. 0"-55 ; fifth finger— metacarp. l"-2, 1st ph. 

 0"-7, 2nd ph. 0"-25 ; tibia 0"-75, foot 0"-5. 



Hah. Australia; New Guinea. 



This very remarkable species is at once distinguished by the great 

 size and peculiar form of the gular sac, which rather resembles that 

 of the species of the genus TapJiozous ; it also diifers from all other 

 species of Molossi in the large size and peculiar shape of the anti- 

 tragus. In the dried skins of adult males the peculiar whiteness 

 of the fur covering the wing-membrane along the sides of the body 

 beneath is very striking, and contrasts remarkably with that of the 

 females, which, for the greater part, does not differ in colour from 

 the fur covering the sides of the abdomen. This additional secon- 

 dary sexual character is particularly noticeable, as diff'erences 

 between the males and females of insectivorous Bats, depending on 

 peculiarity of the colour of certain parts of their fur, is very rare. 



The natural position of this species with reference to the other 

 species of the genus is doubtful, as it differs so remarkably from 

 them all. From the great development of the gular sac it appears 

 to approach CJieiromeles, while it resembles the species of Molossus 

 with circular antitragus in the distribution of the fur on the wing- 

 membrane, and in the presence of a weU-developed gnilar sac. 



a. cj ? ad., al. (type). New Guinea. Mrs. Stanley [P.]. 



b. d ad. sk. Gippsland. Purchased. 



c. $ ad. sk. St. George Mivart, Esq. [P.]. 



d. ad. sk. Purchased. 



15. Nyctinomus megalotis. 



Nyctinomus megalotis, Dohson, P. Z. S, 1876, p. 728. 



Ears nearly as long as the head, projecting when laid forwards 

 nearly one fifth of an inch beyond the end of the muzzle ; inner 

 margins united on the muzzle by a low band at a distance from the 

 end of the nose equal to the length of the base of the antitragus ; 

 inner and outer margins of the ear-conch evenly convex above ; ear- 

 keel very deep and slender in lower third, where it is partly folded 

 upwards and backwards, so as to present a flat surface externally ; 

 superior and inner margin of the conch with four minute homy 

 projections ; antitragus rather small, but separated posteriorly by 

 a deep notch, convex, about once and a half as long as high 

 (Plate XXII. fig. 5) : tragus quadrate, with a straight superior 

 margin and projecting outer angle; inner margin straight, outer 

 slightly concave. Extremity of the muzzle very obliquely truncate. 

 Upper lip very expansible, with a few deep vertical grooves. No 

 gular sac. 



Thumbs and feet small. Wings from the lower end of the tibiae. 



Fur dark brown, above and beneath, with slightly greyish extre- 

 mities ; the base of the hairs whitish. The face is nearly naked, a 



