496 Mr. O. Tliomas on 



Head and body 55 ; tail 45 ; ear 26 x 17'5 ; third finger, 

 metacarpal 40, first phalanx 16 ; lower leg and hind foot 

 (c. u.) 28-3. Baculum 4-4. 



Skull: greatest length 18'5; condylo-basal length 17*2 ; 

 zygomatic breadth 11*4; palato-sinual length 7*1 ; bulla 4*2; 

 maxillary tooth-row 6'9. 



Uab. Tasmania. 



Ti/pe. Adult male in spirit. B.M. no. 52.1.15.50. Col- 

 lected and presented by Mr. Ronald Gunn. 



This fine species is evidently most nearly related to the 

 West Australian N. major, but has a smaller and differently 

 shaped skull and shorter tooth-row. It is far larger than 

 the other Tasraanian form, N. geoffroyi pacijicus, of whicii 

 Tomes's A^. unicolor is a synonym. 



It is named in honour of Mr. W. E. Sherrin, to whom 

 every mammalogist who has visited the Museum is indebted 

 for assistance, and whose admirable preparation of tiny skulls 

 and tinier bacula has so immensely helped in the mammalian 

 work done both by staff and visitors. 



4. Nyctophilus gouldi, Tomes. 

 P. Z. S. 1858, p. 31. 



Size rather large. Ears large. Nose-leaf of middle 

 development, as 2 above. Baculum stout, little curved, thick 

 for its basal portion, then abruptly narrowing in its terminal 

 third to a long point. Bulli3e larger. 



Skull of an adult male from Sydney — greatest length 

 17*7 mm.; maxillary tooth-row 6 4 ; bulla 4*2. 



Ilnh. New South Wales and South Queensland. Type- 

 locality, Moreton Bay. Specimens examined from the 

 Blue Mountains and Sydney northwards to Gin Gin, near 

 Bundaberfr, Queensland, 25° S. lat. 



Type. B.M. no. 7. 1. 1. 339. 



5. Nyctophilus hifax, sp. n. 



Size fairly large. Ears decidedly smaller than in xV. gouldi. 

 Colour medium, a fresh skin cinnamon-brown above, little 

 paler below. Nose-leaf of the least degree of development. 

 No. 1, above. Skull strongly built, with well-developed 

 ridges ; bullae smaller than m N. gouldi. Baculum stout, 

 scarcely tapering for its basal half, then narrowing slightly 

 to the tip, which is distinctly bifurcate, the prongs parallel, 

 .separated by a semicircular concavity corresponding to the 

 flattened end in other species. 



