1917.1 



Lang and Chapin, Field Notes on African Chiroptera. 



539 



annual fires, which at the beginning of the dry season in December and 

 January had left them perfectly bare. 



We found these bats at Faradje during the day hiding in the thatch of 

 abandoned native huts, more than ten huddled in one place, but usually 

 they seem to prefer to conceal themselves between suitable bunches of leaves, 

 as a rule two or three together. Twice we observed in Niangara and 

 Faradje that an overcast sky allowed them to leave their sleeping quarters 

 as early as five o'clock in the evening, when it was still bright daylight. 

 Rather high in the air, sometimes 50 feet from the ground, their ordinary 

 dusky image against the sky gave no hint of their peculiar and strange 

 beauty. They fluttered swiftly, now and then increasing their speed with 

 such spontaneous ease that one hardly noticed the quickened beating of the 

 wings as they gathered their tiny insect prey. 



During flight they often utter a curious squeak, as they do, but more 

 angrily, when handled, and like most insectivorous bats open their mouth 

 so wide that in spite of their tiny gape they find no difficulty in biting into 

 the tip of the finger. 



We saw these bats only about Niangara, Faradje, and Aba and can state 

 that they are restricted to the more open bush country outside of the 

 equatorial forest. 



45. Glauconycteris humeralis sp. nov. 

 Text Fig. 7, A (p. 448). 



Very different in color from the "butterfly bat" are its dark brown con- 

 geners of the Ituri forest. The type of Glauconycteris humeralis was one of 

 four specimens all captured together in a bush by a native, while the fifth 

 specimen, a gravid female from Avakubi, was found by a native unable to 

 fly because of an injury to its wing. In length this species measures about 

 3.25 inches (82 mm.), the expanse of its wings being 9.75 inches (248 mm.). 



46. Glauconycteris alboguttatus sp. nov. 



Text Fig. 7, B (p. 448). 



Larger than the preceding, with wings spreading 11 inches, this species 

 nevertheless seems to inhabit the same region. Our specimen was pro- 

 cured by a native. For a representation of the color pattern see Fig. 7, p. 448. 



47. Miniopterus breyeri vicinior subsp. nov. 



The fuscous wings are almost matched in color by the fur of the back, 

 that of the lower surface being slightly lighter. The total length is 3.94 



