52 



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



is known, viz. T. australis, Gould. Among the Australian Bats of 

 the present collection there is, however, one specimen which does 

 not show any near kinship with the above-mentioned species, while 

 in all essential characteristics it so closely corresponds with Dobson's 

 Taph. offinis, that it can only be taken as a geographical variety, 

 which presents the differences indicated below. (1) The upper edge 

 of the tragus is jagged, not quite circular, as in Taph. offinis, yet 

 the ears are not entirely alike on both sides (compare figs. A a, b). 

 (2) Behind the aperture of the well-developed gular sac, ■which is 

 about 5 millim. deep, issues another small duplicature of integument, 



Fig. 4. 



.■0fl^ 



a h c 



Taphosous affinis, var. insignis. 

 a, Side view of head ; b, right tragus ; c, under view of head. 



the aperture of which is provided with thickened edges. (3) The 

 portion of the wing-membrane between the forearm and the third 

 finger is white. 



In other characteristics (ears, colour, distribution of fur, &c.) 

 this specimen (which is a male) corresponds with Taph. affinis. 



Measurements (male). 



millim. 



Length, head and body 74 



head 30 



tail 23 



„ tail, free from membrane !) 

 „ ear, outer margin .... 25 



„ tragus 7 



„ forearm 70 



„ third finger, metacarpal 68 



„ fifth finger, metacarpal 41 



tibia 26 



Hab. South Australia. 



As Taph. saccolcemus, Temminck, only differs from Dobson's Taph. 

 affinis through the colour of the veutral side and through the 

 presence of a gular sac in the female, and as, again, Taph. offinis, 

 var. insignis, likewise only differs in subordinate characteristics from 



