I 



the Cenus Nyctopiiilus. -VM 



DiiiUMisions of the tvjn' (in spirit) : — 



Forearm 11 mm. (ran;:;*' 40—13). 



Head mid body 5-4 ; tail 4:5; par 2.V5 X 15 ; third finp^er, 

 nutacar|m.s 38, first phahiiix l/j-T); lower h-;; and hind foot 

 (c. w.) 27'). Baeulum 3*2. 



Skull: ^ijreatest l.-ni^th 17-7; coiidylo-hasal len<,flli ]'>-8; 

 zy^^omatic Ineailth lOM) ; palato-siniial length G*5 ; maxillary 

 tooth-row fi-f) ; liulla 3'7. 



//<//'. North Qiieoiisland, within the tropics. 'J'ype from 

 llerberton. Other specimens seen from (^ooktown, Cloiicurry, 

 Capo Yoik, and Torres Straits Islands, about 20 in all. 



Tifpe. Adult male. B.M. no. IT). 3. 13. 3. Ori^rinal 

 number 5,' U. Presented by the Australian Museiun, Sydney. 



This species, while readily dislingui.shable from all the 

 previous ones by its bifurcate baeulum and small bullse, is 

 somewhat nearly allied to the next, A. microtis. From that, 

 however, it differs by its rather lar^^er size, heavier skull, 

 longer j)alate, and by the considerably greater stoutness of 

 its baeulum. All five of the bacula 1 have examined are 

 of similar thickness, and contrast markedly with the slender 

 bone extracted from the type of i\'. microtis. 



6. Nyctophilua microtis^ Tiios. 

 Ann. & Mag. N. II. (0) ii. p. 2i'C (1888). 



Size rather smaller than in N. hifa.v. Ear short. Nose- 

 leaf of medium development. Skull smaller and more 

 slenderly built than in hijax. Baeulum essentially as in 

 Oifiix, but very much more slender. 



The typical skull has the j)alato-sinual length 5*3 mm., 

 maxillary tooth-row 5*6. A more j)erfect skull from the 

 Aroa River is measured below. Baeulum ;V5. 



Ilab. British New Guinea. 



Deceived by the inditi'erent material then available, I some- 

 what exaggerated in my original description the shortness of 

 of the ears of this bat. T'hey arc really but little shorter 

 than those of N. hifax,i\\\(\ do not indicate any near relation- 

 ship with A^. icalkeri. 



Of this species two colour races may be distinguisiied : — 



a. X. microtis microtis. 



Colour brown, about as in A\ I'ifa.r ; under surface not, or 

 scaicely, lighter than uppei-. 



J /ah. Sogere, Owen Stanley Range. 

 /['/pc. B.M. no. {>S. 4. 11. l'. 



