NYCTOPHILUS. 87 



long, produced to the hinder margin of the large interfenioral 

 membrane. Upper incisors distant from one another. 



Genus I. NYCTOPHILUS, Leach (1822). 



Muzzle narrow, thinly covered with short hairs ; glandular 

 prominences well developed. Crown of the head slightly elevated 

 above the face line. Nostrils with their upper margins continu- 

 ous with the base of a small cordate nose-leaf. Ears large, oval, 

 and connected ; tragus short and triangular. Eyes large. Wings 

 from the bases of the toes. Tail slightly projecting beyond the 

 interfemoral membrane. Upper incisors unicuspidate, close to 

 the canines. 



Dentition. 1. 1 C. J=-J, P. ^, M. g -30. 

 Habits. Insectivorous. 



Note. This genus takes the place in the Australian Region of 

 the Palse- and Ne-arctic Plecotus. 



1. NYCTOPHILUS TIMORIENSIS, Geoffroy, sp. (1806). 

 Australian Long-eared Bat. 



Ears longer than the head, connected on the forehead by a well 

 developed band ; the tip rounded ; upper third of outer margin of 

 conch straight. Tragus short, triangular, and subacute. Glandular 

 elevation behind the short nose-leaf longitudinally grooved in the 

 middle. Broad extremity of nose-leaf upwards and free. Extreme 

 tip of tail free. Fur above varying from dark to light brown ; 

 below from pale brown to white. 



Dimensions. Head and body about two inches ; tail and fore- 

 arm about one and four-fifths inch each. 



Habitat. All Australia, Tasmania, and the neighboring 

 Islands ; from Timor to the Fiji Islands. 



References. Dobson, B.M. Catal. Chiropt. p. 172, pi. xi. fig. 

 7 (front view of head) ; Gould, Mamin. Austr. iii. pis. xxxvi., (N. 

 geoffroyi); xxxvii. (N. gouldi); xxxviii. (N. unicolor); xxxix. (IF. 

 timoriensis). 



Note. Owing to the great variation in size, coloration, and the 

 development of the glandular prominences Tomes divided N. 

 timoriensis into four distinct forms under the specific names 

 geoffroyi, timoriensis, gouldi, and unicolor; these however can at 

 the most be only regarded as races of Geoffrey's original species. 



2. NYCTOPHILUS WALKERI, Thomas (1892). 



Walker's Bat. 



Ears when laid forwards not quite reaching to the nose-leaf, 

 connected by a band across the forehead ; the small lobe on the 



