Bats of the Genus Ilistiotus. 273 



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

 we have three exami)les from Palmeira (Coll. Grillo), elose 

 by in tiie same province. Other specimens before me come 

 from Lagoa Santa (Reinhardt) and San Lorenzo, Rio 

 Grande do Sul (Ilicriny). 



Bnt in the liigiilands of Matto Grosso M. Alphonse 

 Robert collected a specimen, which, thongh with typically 

 H. velatus ears, appears to be subspecifically distinguishable, 

 as follows : — 



Histiotus velatus miotis, subsp. n. 



Ears shaped as iu true velatus, but considerably smaller, 

 measuring (when thoroughly rc-dauipcd) only 25 x 17 mm., 

 as compared with 30 X 23 in typical velatus. Fur blackish 

 brown at base, broadly washed terminally with lighter 

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



Skull smaller than in true velatus. 



Dimensions of type : — 



Forearm 40 ram. 



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 G. 



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



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

 number 118G. Collected 21)th October, 1902, by A. Robert 

 and presented by Mrs. Percy Sladeu. 



The other members of the genus all have broadly rounded 

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



H. maf/ellunicus, Phil., the most southern species, is re- 

 presented iu the Museum by examples from Tierra del 

 Fuego {Craws/.ay), Last Hope Inlet ((Volffsohn), and 

 'iV-muco, S. Chili (Bullock). That from the first-named 

 locality, certainly Phili^)pi's species, has ears 25 x 1G"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. mayellanicus is a uniform dark 

 brown (mummy-brown). Eare 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 dcscriber to have ears three times the length of its 

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



