Bats of the Genus Histiotus. 273 



The type-locality of H. velatus is Curityba, Parana, and 

 we have three examples from Palmeira {Coll. Grillo), close 

 by in the same province. Other specimens before me come 

 from Lagoa Santa {Reinhardt) and San Lorenzo, Rio 

 Grande do Sul (Iherin(/). 



But in the highlands of Matto Grosso M. Alphonse 

 Robert collected a specimen, which, though with typically 

 H. velatus ears, appears to be subspecifically distinguishable, 

 as follows : — 



Histiotus velatus miotis, subsp. n. 



Ears shaped as in true velatus, but considerably smaller, 

 measuring (when thoroughly re-daraped) only 25 x 17 mm., 

 as compared with 30x23 in typical velatus. Fur blackish 

 brown ut base, broadly washed terminally with lighter 

 brown (between cinnamon-brown and Front's brown). 



Skull smaller than in true velatus. 



Dimensions of type : — 



Forearm 46 mm. 



Head and body 55 ; tail 50 ; ear 25 X 17. 



Skull: greatest length 17"2; basi-sinual length 13"2 ; 

 zygomatic breadth 10*5 ; interorbital breadth 5*6 ; maxillary 

 tooth row 6. 



Hab. Chapada, Matto Grosso. Alt. 800 m. 



Type. Adult female. B.M. no. 3. 7. 7. 17. Original 

 number 1186. Collected 29th October, 1902, by A. Robert 

 and presented by Mrs. Percy Sladen. 



The other members of the genus all have broadly rounded 

 ears as in Peters^s plate, figs. 2 to 5. 



H. magellanicus, Phil., the most southern species, is re- 

 presented in the Museum by examples from Tierra del 

 Fuego (Crawshay), Last Hope Inlet (fVolffsohn), and 

 Temuco, S. Chili (Bullock). That from the first-named 

 locality, certainly Philippics species, has ears 25 x 16'5 mm., 

 thus showing that the small size of the ears in Peters's 

 figs. 4 a and 5 is due to the specimens having been dried. 

 The body-colour of H. magellanicus is a uniform dark 

 brown (mummy-brown). Ears not connected across the 

 crown. 



Next northwards follows H. macrotus, Poepp., described 

 from Antuco, in the Andes of Southern Chili. This bat was 

 said by its describer to have ears three times the length of its 

 head, which would make them something like 60 mm. long — 



