Mr. O. Thomas on Bats from Old Calabar. 165 



lished a most valuable notice*, one specimen each of Nyc- 

 teris grandis, Ptrs., Vesperugo na?ius, Ptrs., a new species of 

 Vesperugo, a new species of Kerivoula, and an immature 

 specimen of a species allied to, or identical with, Vesperugo 

 Kuhliij Natt., but which is not in a condition to be certainly 

 determined. 



The following are descriptions of the new species above 

 referred to : — 



Vesperugo (Vesperus) brunneus. 



Muzzle broad and flat above, the glandular prominences 

 well developed increasing its width. 

 Ears rather shorter than the head, 

 laid forward they reach to about half- 

 way between the eye and the tip of 

 the nose ; inner margin faintly convex, 

 tip broadly rounded off; outer margin 

 evenly convex, an angular emargina- 

 tion opposite the base of the tragus, 

 basal lobe elongated. 



Tragus of medium length, inner 

 margin straight, tip obliquely trun- 

 cated ; outer margin also straight, 

 nearly parallel with the inner ; basal lobule small, triangular. 



Wings from the base of the toes ; postcalcaneal lobe well 

 developed; tail entirely contained in the interfemoral mem- 

 brane. 



Fur above and below dark brown. 



Outer upper incisors minute, barely one third the height of 

 the large unicuspidate, inner incisors, and about one fourth 

 the size in cross section at the base ; no trace of a first pre- 

 molar. Lower incisors rather crowded, overlapping, at right 

 angles to the direction of the jaw ; second lower premolar 

 about twice as long as the first, and about equal to the anterior 

 cusp of the first molar. 



Length (of the type, a female, preserved in alcohol) — head 

 and body 1"«8, tail 1"'35, head 0"-6, ear 0"-55, tragus 0"-2, 

 forearm 1"'33, third finger 2"*27, fifth finger 1"'6, tibia 0"'5, 

 foot 0"-35. 



Vesperugo brunneus appears to be most nearly allied to V. 

 capensis, Sm.; but it differs from that species by its unicuspi- 

 date inner upper incisors, and also, as well as from all the 

 other species of the subgenus, by its very peculiarly shaped 

 tragus. The only species of the genus that have a tragus at 



* Proc. Roy. Pbys. Soc. April 1880, p. 362. 

 Ann. & Mag. N. Hist. Ser. 5. Vol. vi. 12 



