466 



Bulletin American Museum of Natural History. [Vol. XXXVII,- 



breadth at base of canines, 5.4; breadth of braincase, 9; depth of braincase at ptery- 

 goids, 6.1; length of upper toothrow (c-m 3 ), 6.7; length of mandible, 12.3; angle to 

 condyle, 3.5; depth at coronoid, 3.4; length of lower toothrow, 7.6. 



Skull, average of 10 specimens, total length, 18 (17.5-18.8); zygomatic breadth,. 

 11.2 (11-11.4); breadth of braincase, 9.2 (8.7-9.8). 



Represented by a series of 25 specimens, all collected the same day at Aba. 

 Four additional specimens from Faradje, collected Feb. 25, 1911, are so similar in; 

 every respect to the Aba series that they seem preferably referable to the same species. 

 The external measurements are slightly less, but the skulls indicate greater maturity 

 and are as large as those of the Aba series. The coloration, however, is less dark and 

 more buffy. They probably represent a slightly differential local race of the Aba 

 form. 



Chair ephon (Lophomops) aboe resembles, in size and coloration, C. major 

 (Trouessart), and C. emini (de Winton) in size, but not in color. As neither 

 of these species, so far as known, is crested in the males, nor possess the 

 conspicuous and (probably) erectile lappet in the females, and ununited 

 ears, they require no special consideration in the present connection. The 

 uniform brown coloration of the membranes, and usually the size, will 

 readily separate aboe from the other known forms of the Lophomops group. 



61. Mops 1 midas (Sundevall). 



Nyctinomus midas Sundevall, Vet. Akad. Handl. Stockholm, 1841 (1842), 

 p. 207, pi. ii, fig. 7, skull and head. White Nile, Africa. 



» • 



Six specimens (alcoholic), 3 males and 3 females, all adult, Faradje, 

 March 7-9, 1912. 



Measurements of an adult female (No. 49272) : Total length, 137 mm. ; 

 head and body, 95.5; tail, 41.5; forearm, 60.4; third metacarpal, 58.5; 

 tibia, 19; foot, 10.5; ear from crown, 15.6; height from notch at posterior 

 base of an ti tragus, 24; breadth of both ears from outer border of each, 

 44.5. 



Forearm, average of 6 adults, 60.6 (59.2-64). 



Skull massive, narrow and deep, strongly constricted postorbitally, 

 and with a low median crest, highest just in front of braincase. First upper 

 premolar minute, in the toothrow, separating the canine from p 4 . Lower 

 premolars subequal, the first slightly lower than the second. 



Measurements of skull (9 ad., No. 49272): Total length, 27.4; zygo- 



1 Mops Lesson, 1847, has been revived by Thomas as an available name for a group of Old World 

 free-tailed bats, previously of late referred in part to Nyctinomus and in part to Chserephon, in a paper 

 bearing the cryptic title (considering the matter it covers), 'On a remarkable new Free-tailed Bat from 

 Southern Bombay.' See Journ. Bombay Soc. Nat. Hist., XXII, pp. 87-91, April, 1913, especially the 

 'postscript.' 



