7. CHALINOLOBUS. 247 



and the shortness of the first phalanx of the longest finger, in some 

 species, connect it with Minioptems. 



Mange. Australian and Ethiopian Eegions. 



Chalinolobus may be considered intermediate between Vespenigo 

 and Mtmojiterus, though it is evidently more closely allied to the 

 former, and may be similarly divided into subgenera. Those sub- 

 genera, however, similarly artificially based upon the presence or 

 absence of the minute first upper premolar, separate the species into 

 two very natural groups distinguished by other more important cha- 

 racters and mhabiting respectively a great continent. 



Synopsis of Subgenera and Species. 



I. Premolai-s gujj fii'st upper premolar minute. Chalinolobus. 

 Hah. Australia, Tasmania, and New Zea- 

 land. 



a. Internal basal lobe of the ear not form- 



ing a distinct lobule at the base project- 

 ing backwards. 

 a'. With a transverse cutaneous process 

 on the face between the eyes ; fore- 

 arm l"-4 2. Ch. signifer, p. 250. 



b'. No cutaneous process on the face; fore- 

 arm l"-55 1. Ch. ttibercidatua, p. 248. 



b. Internal basal lobe of the ear forming a 



distinct lobule at the base, projecting 

 backwards, 

 c'. Outer margin of the ear terminating 

 in front in a pendent lobule ; fore- 

 arm l"-8 in adults 3. Ck. gotddii, p. 250. 



d'. Outer margin of the ear terniiuating 

 in a horizontal lobule ; forearm l"-35 

 in adults 4. Ch. nigrogriseus, p. 251. 



II. Premolars 2^12 j the single upper premolar 



large, close to the canine Glauconyctbris *. 



Hab. Southern and Equatorial Africa. 



a. Wing-membranes brown, unicoloured. 

 a'. Internal basal lobe of the ear com- 

 mencing in a short obtuse lobule ; 

 lower incisors in the direction of 



the jaw ; forearm l"'6o 7. Ch. poensis, p. 255. 



b. Wing-membranes dusky white, traversed 



by well-defined reticulations. 



b'. Internal basal lobe of the ear com- 

 mencing in a long narrow lobule 

 projecting backwards ; lower inci- 

 sors in the direction of the jaw ; 

 forearm l"-7 5. Ch. argentatm, p. 252. 



c'. Internal basal lobe of the ear com- 

 mencing in a short obtuse lobule ; 

 lower incisors at right angles to the 

 direction of the jaw; forearm 1"'55. 6. Ch. variegatus, p. 254. 



* Glauconycteris, Dobaon, P. Z. S. 1875, p. 333. 



