G. VESPERUGO. 217 



Upper inner uiciaor, on each side, directed very obliquely for- 

 wards, with a second cusp placed posteriorly and externally near its 

 extremity ; outer incisor small, triangular, unicuspidate, parallel 

 and close to the outer side of the base of the inner incisor, the 

 ciagulum of which it but slightly exceeds in vertical extent ; second 

 premolar separated by a narrow space (wider ia immature speci- 

 mens), through which with difficulty the small internal first pre- 

 molar maybe seen ; lower incisors crowded in immature specimens*, 

 the sides overlapping ; in adults placed in the direction of the jaws, 

 the central and the middle incisor on each side very broad in trans- 

 verse and narrow in antero-posterior diameter, trifid ; the outer 

 incisors conspicuously larger than the others, and much exceeding 

 them in antero-posterior diameter f ; lower premolars equal in vertical 

 extent, but the first is in cross section at the base nearly twice 

 the diameter of the second. 



Length, head and body 2"-35, tail l"-7, head 0"-75, ear 0"-6 X 

 0"-4, tragus 0"-23xO"-15, forearm l"-55, thumb 0"-32 ; third 

 finger — metacarp. 1"'5, 1st ph. 0"'6, 2nd ph. 0"-7; fourth finger — 

 metacarp. l"-48, 1st ph. 0"-5, 2nd ph. 0"-3 ; fifth finger — metacarp. 

 l"-3, 1st ph. 0"-28, 2nd ph. 0"-2 ; tibia 0"-55, foot 0"-45. 



JTab. Borneo (Sarawak). 



In this species the fourth and fifth fingers, compared with the 

 third, are relatively shorter than in any other species of the genus ; 

 and as the wing-membrane extends only to the distal third of the 

 tibia, the wings are remarkably narrow. 



a. c? ad., al. (type). Sarawak. Mr. Everett [C. 



b. <J imm., al. Sarawak. Mr. Everett [C. 



26. Vesperugo imbricatus. 



Vespertilio imbricatus, Horsfleld, Zoolog. Researches in Java (1824). 

 Vespertilio macrotis, Temminck, Monogr. Hanimal ii. p. 218 (1835- 



41)- 

 Vesperugo imbricatus, Dohson, Monogr. Asiat. Chiropt. p. 93 (1876). 



Ears as long as the head or slightly longer, broadly rounded off 

 above ; the basal lobe of the inner margin rounded, the ascending 

 portion slightly convex ; the upper third of the outer margin flat- 

 tened, the middle third slightly convex, faintly emarginate o^jposite 

 the base of the tragus, and terminatuig close to the angle of the 

 mouth in a distinct lobe. The tragus is peculiarly shaped and 

 characteristic of this species ; in general form regularly crescent- 

 shaped, with a large triangular projection at the base of its outer 

 margin ; the inner margin is regularly and rather deeply concave, 



* The original description of the teeth of this species was taken from an 

 immature specimen in the collection. 



+ Blasius (Fauna Deutschlands) makes use of the position of the lower inci- 

 sors in the jaw as one of the most important characters in distinguishing 

 species. The different arrangement, however, of these teeth in immature and 

 adult specimens of V. itenopterus, noted above, throws much doubt on the 

 ■value of this character in other species. 



