460 Mr. 0. Thomas on a new 



and veil of peiitftcts, the two former features not being so plainly 



visible from one and the snmo aspect. 

 F\'g. 2. I'entactine spicule (pleural prostiilia), X 68. 

 tig. 3. Autoga*tral diact, X 2l'o. 

 Fiff. 4. Larpre discoctaster, x 300. 

 Fi(f. /). Small discoctaster, x 300. 

 Fu/. 6. Oxyhexaster, X 300. 



LVIII. — On a new Genus and Species of Vf.spertilionine Bat 

 from East Africa. By Oldfield ThoMAS. 



Hardly had my description of Scotoecus Hindei* been pub- 

 lished than the Museum received from Dr. Hinde a second 

 new bat, so distinct from all previously known as to require 

 the formation of a new genus for its reception. 



It is the analogue of the South-American Histiotas in 

 Africa, and may be called by a name having a similar 

 meaning to that word — 



L^PHOTIS t, gen. nov. 



Most nearly allied to Vespertilio, but the ear and tragus 

 enlarged as in llistiotus. 



Skull, as compared with that of the allied form, long and 

 narrow, tlattened above, very smooth and little ridged, the 

 crests scarcely perceptible. Palate narrow, its posterior part 

 unusually produced backward. Bullae rather large. 



Dental formula as in VespertiUo. 



Upper incisors close to canines, instead of being well sepa- 

 rated from them, the tip of the lower canine biting on to the 

 top of, or outside, the outer incisor, instead of between it and 

 the upper canine. In correlation with this the lower canine 

 is unusually short and feeble, its length from cingulum to tip 

 not exceeding the outer horizontal length of m.\ Detailed 

 proportions of teeth as described below. 



Type and only species 



Lcephotts Wtntontj sp. u. 



Size rather less than in Histiotus velatus ; general appear- 

 ance very much as in that species, although the ears are not 

 80 large. Fur close and fine, the hairs of the back about 

 6-7 millim. in length. General colour above coppery brown, 

 the basal halves of the hairs sooty, the terminal halves clear 



* Ann. A Mag. Nat. Hist. (7) rii. p. 263 (1901). 

 t Xaif^of, a sail. 



