* Specimen examined, but locality perhaps questionable. 

 t Probably occurring, but no specimens examined. 

 J Eecorded, but no specimens examined. 



Habits.— 'Vhe bats of this genus are said to hide in caves, rarely 

 in trees (S. Miiirer) ; in the island of Alor, Timor group, A. Everett 

 found D. peroni " in rock shelters on the coast at sea-levei " (col- 

 lector's label, B.M.) ; D. inermis was obtained by Dr. Guppy in 

 TJgi, Solomon Islands, in a " cave in coral limestone " (collector's 

 label B.3r.) ; and Pere Heude's specimens of B. viridis were found 

 in similar surroundings in the Key Islands. Apart from these 

 meagre facts, their habits appear to be unknown. 



Affinities.— Dohsonia is a peculiarly modified offshoot of the 

 llousetto-Pteropine branch. It has originated from a bat which 

 had all the essential cranial and dental characters seen in typical 

 species of Pteropus, but externally was more similar to a MoKsettus. 

 Cover the tip of the rostrum of a tyjiical Pteropine skull as far 

 back as the front of p' and Pj, similarly a skull of Dohsonia (pre- 

 ferably D. mafjna, because it is equal in size to an average Ptrropus), 

 and the differences l)etwten the two skulls become perfectly trivial ; 

 compare similarly the skull of a typical Bouseitus, and the differences 



