50 MR. W. LECHE ON CHIROPTERA FROM AUSTRALIA. [Feb. 5, 



The first lower premolar is as high as the cingulum of the second. 



Measurements (female). 



millim. 



Length, head and body 57 



head 21 



tail 33 



„ tail, free from membrane 12 

 „ ear, outer margin .... 1 G 



,, tragus 3 



,, foiearm 34 



„ third finger, rr.etacar|)al 36 

 „ fifth finger, metacarpal 24 

 „ tibia 10 



Tlie male is considerably smaller. 

 Hab. South Australia. 



2. Nyctinomus albidus, sp. nov. 



This species is most nearly related to Nyct. misfralis, Gray, which 

 has otherwise a rather isolated position in the genus. Prom the 

 last-named form it deviates through the facts : — (1) that the ears 

 are much longer than the head and united by a low band, whereas in 

 Nyct. australis they are shorter than the head and separate ; (2) 

 the integument forming the ear-conch is thick and opaque, whereas 

 in Nyct. australis it is rather thin ; (3) in Nyct. australis a narrow 

 band of hair extends outwards behind the forearm and covers the 



Fig. 3. 



Nyctinomus albidus ; natural size. 



space between it and the upper third of the fourth metacarpal ; this 

 covering of hair is lacking in Nyct. albidus ; (4) concerning the 

 adult male of Nyct. australis, Dobson (Catalogue of Chiroptera in 

 British Museum, 1878, p. 433) states that "the fur covering the 

 wing-membrane beneath, between the humerus and femur and the 

 sides of the body outwards, is pure white, contrasting strongly with 

 the dark-brown fur of the body," and furthermore that it is provided 



