350 ROBERT COLLETt, 



The end of the lower jaw extends considerably beyond the inter- 

 maxillary, so that the total length of the skull to the tip of the lower 

 jaw is 27 mm. 



The d e n t i t i n is incomplete, as the incisors in this specimen 

 are wanting in the cartilagineous intermaxillaries : 

 ih c{,ph ^1 (28). 



The Upper p ^ is sraall , and has two quite low cusps \ p^ is 

 longer thau the molars. 



18. JVyctinofnus australis (Gray) 1838. 



Molossiis australis Gray, iu: Mag. Zool. Bot. II, p. 501 (1838). 

 J\'yctinotnus australis Dobson , in: Proc. Zool. Suc. Loud. 1876, p. 728 

 (1876). 



A. Female. Manaroo Station, Oct. 1881 (skin with skull). 



The für is short and velvety, its colour sepia brown with lighter 

 coloured roots; the lower surface is but slightly lighter than the 

 Upper. — The für, covering the wing merabrane beneath between the 

 humerus and femur from the sides of the body, is, notwithstanding 

 that the individual is a female, snowy white, as in the male, without 

 being mixed with brown. 



Length of cubitus 57 mm 



Length of tibia 16,5 „ 



Length of tail 53 „ 



Tail beyond the merabrane 29 „ 



The ears are thick and leathery, quite in transparent; -ZV. australis 

 can therefore hardly be placed in that group of the species, which 

 Dobson characterises thus: „Integument of the ears thin, translucent" 

 (Cat. Chir. Brit. Mus. p. 421). The gular sack is indistinct, the margin 

 of the mouth of the sack being alone developed. 



The skull. Length of skull 23 mm, breadth 15,5 mm. 

 Dentition complete: i\ c\ p'^ m| (30). 

 In the Upper jaw p^ is almost rudimentary, and is placed 

 slightly inwards ; p ^ has a long cusp, which is longer than the cusps 

 of the molars, having about the same length, as the incisors. ' 



In the lower jaw both canines are furnished with so broad a 

 cingulum, that they meet in the centre. As in the upper jaw, they 

 are very long. Of the premolars f»^ is but slightly larger than jp % 

 and its cusp is not higher than those of the molars. 



