12. VE3PERTILI0. 307 



only. Posteriorly the free margin of the interfemoral between the 

 ends of the calcanea is fringed with fine straight hairs. 



Above, dark at the base for about one fourth the length of the 

 hairs, then pale straw-colour, extremities reddish ; beneath, the very 

 base only is dark, the remainder of the hairs dull straw-colour. 



Dentition quite similar to that of V. murinus. 



Length (of an advilt cJ preserved in alcohol), head and body 2""4, 

 tail 2"-4, head 0"-8, ear 1", tragus 0"-4, forearm 2"-05, thumb 0"-35, 

 third finger 4", fifth finger 2"-7, tibia 0"-85, foot 0"-5. 



Hab. Angola, West Africa. 



«. cJ ad., al. (type). Angola. Dr. Welwitsch [C.]. 



20. Vespertilio natter eri. 



Vespertilio nattereri, Kuhl, Deutsch. Fledermause, Annal. Wetter. 

 Gesellsch. Naturk. Bd. i. p. 83 (1819) ; Temm. Monogr. Mainm. iL 

 p. 185 ; Hell, Brit. Quadrup. p. 42 (1837) ; Wagner, Suppl. Schreb. 

 Sauffeth. v. p. 723 (1855) ; Blasius, Fauna Deuischl. p. 88 (1857). 



Head considerably raised above the face-line ; muzzle broad, sides 

 not prominent, evenly sloping down to the edge of the upper lip. 

 Ears long, laid forwards they extend at least one tenth of an inch be- 

 yond the end of the nose ; in general shape oval, with evenly rounded 

 extremities, the convexity of the ear interrupted in the upper third 

 of the outer margin only by slight flattening ; the inner margin is 

 regularly convex from the base to the tip ; near the termination of 

 the outer margin a small vertically placed outer lobe (the antitragus) 

 is well marked in this species. The tragus is very long, quite three 

 fourths the diameter of the ear-conch, narrow and subacutely pointed, 

 the inner margin slightly convex, the outer correspondingly concave ; 

 at the base of the outer margin a distinct horizontal lobe succeeded 

 by an emargination, immediately above which, opposite the base of 

 the inner margin, the tragus suddenly attains its greatest width. 



Wings from the base of the toes or close to them ; calcaneum long ; 

 tip of tail projecting ; the portion of membrane between the end of 

 the calcaneum and the tail is fringed with short stiff hairs. This 

 fringe of hairs readily distinguishes the species. Pur very long and 

 dense ; above dark brown, with light reddish-brown tips ; beneath 

 darker at the base, the terminal third of the hairs white. 



First and second premolars small, the second about half the first 

 in vertical extent, but scarcely one third its bulk and slightly in- 

 ternal to it. In the lower jaw the second premolar is very slender, 

 about half the height of the first premolar, and, though standing in 

 the tooth-row, placed in a plane distinctly internal to the first pre- 

 molar, which slants slightly outwards. 



Length (of an adult J preserved in alcohol), head and body l"-65, 

 tail l"-65, head 0"-65, ear 0"-7, tragus 0"-4, forearm l"-45, thumb 

 0"-3, third finger 2"-6, fifth finger l"-9, tibia 0"-6, calcaneum 0"-85, 

 foot 0"-35. 



Hah. Middle Europe, from Ireland to the Ural Mountains, and 

 from Southern Sweden to the Alps. 



x2 



