THE FAMILIES AND GENERA OF BATS. 217 



Genus SCOTCECUS Thomas. 



1901. Scotcecus Thomas, Ann. and Mag. Nat. 1 1 1st, 7th ser., VII, p. 263, 

 March, 1901. 



Type-species. — Scotoph this alb of 'uncus Thomas. 



Geographic distribution. — Africa, except northern portion. 



Number of forms. Scot mens ulbofuscus (Thomas), ,S'. Mndei 

 Thomas, S. hirundo (de Winton). 



Characters.— Externally like Nycticeius. Skull as in Nycticeius, 

 but everywhere greatly broadened, the zygomatic breadth at least 

 equal to basal length in median line ; lachrymal region so wide that 

 diameter of skull at front of orbits is considerably greater than that 

 across outer edge of toothrows. Teeth as in Nycticeius. 



Species examined. — I have examined all of the known species. 



Remarks. — The great broadening of the skull, especially in the 

 lachrymal region, combined with the perfectly Nycticeius-like teeth 

 distinguish this genus from its allies. 



Genus SCOTEINUS Dobson. 



1875. Scoteinus Dobson, Proo. Zool. Soc. London, p. 371 (subgenus of 



Scotophilus) . 

 1878. Scot Pin m Dobson, Catal. Chiropt Brit. Mns., p. 257 (subgenus of 



Scotophilia*), 



Type-species. — Scotophilus emarginatus Dobson. 



Geographic distribution. — This genus is at present known from 

 Africa, India, and Australia. 



Number of forms. — Scoteinus balstoni Thomas, 8. emarginatus 

 (Dobson), S. greyii (Gray), S. pallidus (Dobson), and 8. schliefenii 

 (Peters). 



Characters. — Externally like Nycticeius. Skull as in Nycticeius, 

 but broader, though without the conspicuous widening in lachrymal 

 region characteristic of Scotcecus. Teeth differing from those of 

 both Nycticeius and Scotcecus in the reduction of the posterior por- 

 tion of last molar both above and below ; in m 3 both mesostyle and 

 metacone are practically absent, though the position of each is indi- 

 cated in the very short commissure back of protocone ; m 3 with 

 scarcely a trace of entoconid, and with second triangle very much 

 smaller than first. 



Species examined. — Scoteinus balstoni Thomas, S. greyii (Gray) 

 and S. schliefenii (Peters). 



Genus SCOTOMANES Dobson. 



1875. Scotomanes Dobson, Proc. Zool. Soc. London, p. 371 (subgenus of 



Scotophilus) . 

 1878. Scotomanes Dobson, Catal. Chiropt. Brit. Mus., p. 258 (subgenus of 



Scotophilus) . 



Type-species. — Nycticejus ornatvs Blyth. 



