Bats of the Genus Coleuva. 577 



Peters and Dobson, the relative lenoth of the calcar, or the 

 presence or absence of a groove on the lower lip. 

 Descriptions of new forms : — 



Coleura gallarum , sp. n. 



Size decidedly smaller than in C.afra, the forearm usually 

 47-48 mm. in length, the skull markedly smaller in all 

 dimensions. General colour above pale brown — rather 

 darker than " vvood-brovvn," — the hairs slightly lighter 

 towards their bases, but not conspicuously or abruptly bicolor. 

 Under surface similar in general tone, but the bases of the 

 hairs not lighter than the tips. 



kSkuU as in C. ojra, except for its smaller size and smaller 

 teeth. Position and development of the small premolar 

 variable. 



Dimensions (see table on p. 579). 



llab. Suakiti, Somaliland, and Aden. Type from Zeyla, 

 Somaliland. Sea-level. 



Type. Old female. B.M. no. 11. 8. 2. 4. Collected 29th 

 October, 1910, and presented by Dr. R. E. Drake-Brockman. 

 Pour skins and six skulls from the type-locality. 



Other sjjecimens from Sua kin [Anderson, IloUed Smiih), 

 Aden {Yerhxirij), Sheikh, Somaliland {Drake- Broclcvum), 

 Lugh, Somali {Boltego). 



Coleura gallarum nilosa, subsp. n. 



Essential characters of the Somali C. gallarum, but the 

 colour, instead of being more or less uniformly pale brown, 

 is a darker brown — sepia — on the surface, the bases of the 

 hairs being strongly contrasted white ; the long hairs of the 

 nape are white for about 3*5 mm., the terminal 2 mm. being- 

 sepia. Below, the general colour is rather greyer, but the 

 bases of the hairs are similarly contrasted whitish, the con- 

 trast showing well in the long hairs of the flanks, which are 

 almost uniformly coloured in true gallarum. 



Dimensions (see table on p. 579). 



Hah. Upper Nile. Type-series from near the mouth of 

 the Bahr-el-Zeraf. 



Type. Adult male. B.M. no. 15. '^. 6. 76. Original 

 number 77. Collected 3rd Pebruary, 1914, by Willoughby 

 P. Lowe. Twelve sjiecimens. 



Ann. tf; Mag. N. Jlist. Ser. 8. Vol. xv. 39 



