1917.] 



Allen, Lang and Chapin, Bats from the Belgian Congo. 



475 



lar, the humerus and forearm whitish, in strong contrast with the membrane. Uro- 

 patagium dark brown and naked on both surfaces. 



Collectors' measurements of type: Total length, 98; head and body, 68; tail, 30; 

 foot, 11; ear, 18. Additional measurements from the skin: Forearm, 38; tibia, 

 15.5; foot, 10; ear from crown, 9; from notch behind antitragus, 16. 



Collectors' measurements of 4 specimens (2 males, 2 females) from Medje (near 

 type locality): Total length, 99.4 (98-101); head and body, 70 (68-73); tail, 29.2 

 (28-30); foot, 9.6 (8-11); ear, 18 (all 18). Forearm (from the skins), 38 (36-39). 



Fig. 15. Mops (Allomops) occipitalis. Skull of adult male type (No. 48851). f. 



Measurements of the type skull: Total length, 20.4; condylobasal length, 18; 

 zygomatic breadth, 12.7; mastoid breadth, 11.5; breadth of braincase, 9.5; inter- * 

 orbital breadth, 4.1; maxillar breadth, 8.2; breadth at canines, 5.8; depth (includ- 

 ing pterygoids), 7.8; length of upper toothrow (c-m 3 ), 6.9; length of mandible, 

 13.4; angle to condyle, 4.5; depth at coronoid, 4; length of lower toothrow, 7.4 

 (Fig. 15). 



Four skulls from Medje: Total length, 2 young adult males, each 91.8; 2 young 

 adult females, 18.3, 18.8; zygomatic breadth (2 males, 1 female), all 12.5. 



In the adult males the skull has the occipital region enormously developed, the 

 lambdoid crest being high and broad with a marked backward overhang. In 

 females and young males (subadult) it is much less developed. The mandible is 

 noticeably massive in even young specimens. 



Represented by the type, from Avakubi, and 6 specimens from Medje, of which 

 2 are about half grown and the others young adults, collected Sept. 15-16, 1910. 



