300 VESPERTILIONIDAC. 



nearly to the end of the muzzle ; ears naked or with a few fine hairs 

 only. 



Above dark brown, with yeUowish-brown extremities ; beneath 

 similar, the tips of the hairs pale yellow. 



Upper incisors equal ; both the upper premolars stand in the 

 tooth-row. 



Length (of the type specimen), ear 0"-65, tiagus 0"-35, forearm 

 l""-5, third finger 2"-3, fifth finger l"-9, tibia 0"-7, foot 0"-3. 



Hah. Singapore. 



Type in the collection of the Leyden Museum. 



Dr. Peters has identified F. oreias with V. emarginatus. It is 

 lindoubtedly closely allied to that species, but the form of the ear is 

 quite different ; both the upper premolars stand in the tooth-row, 

 and the fur is bicoloured and much darker than in V. emarginatus. 



19. Vespertilio welwitschii. 



Scotophilus welwitschii, G)-aij, P. Z. S. 186G, p. 211, pi. xxiv. 



Head moderately elevated ; muzzle broad, shaped like that of V. 

 natter eri, sloping evenly down to the upper lip ; ears long and nar- 

 row, laid forwards the tips extend slightly beyond the end of the 

 nose ; lower third of inner margin of the ear straight, upper two 

 thirds convex to the tip, as in V. murinus ; tip shortly rounded off and 

 projecting externally, owing to an abrupt emargination of the outer 

 margin causing the upper part of the ear to appear narrow, below 

 this the outer margin is faintly convex, very slightly concave oppo- 

 site the middle third of the tragus, then again convex to its termi- 

 nation opposite the base of the inner margin ; on the inner surface 

 of the external basal lobe a small vertical lobe, as in V. murinus. 

 Tragus long, atteniiated in its upper third, and acutely pointed ; 

 upper two thirds of its inner margin slightly convex : at the base of 

 the outer margin a very distinct rounded lobe, above which the outer 

 margin becomes convex and reaches its greatest width slightly above 

 the base of the inner margin (Plate XIX. fig. 3, ear, enlarged). 



Wings from the metatarsi close to base of toes. Peet slender ; 

 calcaneum long, extending three fourths the distance between the 

 foot and the tip of the tail, terminating in a small projection. 

 Tail whoUy included except the extreme tip, equal to the head and 

 body in length. 



The wing-membranes are variegated with orange and black, as in 

 F". formosus, but, in addition, the upper siu'face of the interfemoral 

 membrane, which in that species is whoUy orange, is, in V. wel- 

 witschii, margined behind by a black band and dotted over with small 

 black dots, which also appear upon the orange-coloured portion of 

 the wings between the humerus and the femur, and on the forearm 

 and legs. 



The head is covered with long hair ; in front of the eyes the face is 

 rather thickly covered with short hairs, and the margin of the upper 

 lip is fringed. The wing-membranes are nearly naked, and the fur 

 of the back extends upon the interfemoral at the base of the tail 



