276 VESPEETILIONID.l!. 



at once distinguished by the form of the tragus and the colour of 

 the h\T. 



5. Atalapha ega. 



Nycticejus ega, Gervah, Expedition du Comte de Castelnau, Zoologie, 



p. 73, pi. xiv. fig-s. 1, 1 a-1 c (1855). 

 Lasiui-us caudatiis et aga, Tomes, P. Z. S. 1857, pp. 42, 43. 

 Atalapha ega et caiidata, Peters, MB. Akad. Berl. 1870, p. 914. 



Head and muzzle as in A. novehoracensts ; ears rhomboidal, the 

 inner margin of the ear-conch very convex, outer margin straight 

 or slightly concave immediately beneath the tip for nearly half its 

 length, then convex, deeply emarginate opposite the base of the 

 tragus, terminating near the angle of the mouth in a prominent 

 rounded lobe ; tragus as in ^. noveboracensis but larger, the outer 

 margin forming a strongly projecting angle opposite the base of the 

 inner margin, thence convex upwards to the tip, which is subacute 

 and directed forwards and inwards, inner margin concave upwards. 



Wings from the base of the toes ; a smaU but distinct postcalca- 

 neal lobe ; tail wholly included within the interfemoral membrane. 



On the upper surface the fur extends almost as far outwards as a 

 line drawn from the middle of the humerus to the knee, upon half 

 the interfemoral, thinly upon the legs, and reappearing on the backs 

 of the toes ; beneath, the wing-membrane is covered as far as a line 

 joining the elbow and the knee, and a broad band of fine thinly- 

 spread hairs passes outwards behind the forearm to the carpus and 

 to the angle between the third and the last finger. 



Above, dark brown at the base, then buif, the extremities yellowish 

 buff; beneath, similar but paler. 



Lower incisors trifld, placed at right angles to the direction of the 

 jaws ; first lower premolar scarcely one third the size of the second 

 premolar, which is flattened from before backwards. 



Length, head and body about 2"-l, tail 2", head 0"'6, ear 0"-6 X 

 0"-45, tragus 0"-32, forearm l"-7, thumb 0"-35, third finger 3"-5, 

 fifth finger 2"-2, tibia 0"-7, foot 0"-33. 



Hab. Brazil (Pernambuco, Ega) ; Chili. 



a. ad. sk. Ega, Amazons. II. W. Bates, Esq. [CJ. 



b. ad. sk. Pernambuco. J. P. G. Smith, Esq. [P.]. 



(Type of Lasiunis caudatus, Tomes.) 



c. skull of a. 



11. HARPIOCEPHALUS. 



Murina et Harpiocephalus, Gray, Ann. 8[ Mag. Nat. Hist. x. p. 259 



(1842). 

 Murina et Harpyiocephalus, Gray, Ann. 8f Mag. Nat. Hist. 3rd ser. 



xvii. p. no (1866). 

 Murina, Dobso^i, P. A. S. B. 1873, p. 109 ; Ann. Sf Mag. Nat. Hist, 



1875, xvi. p. 349. 

 Harpiocephahia, Dobsnn, Monogr. Asiat. Chiropt. p. 150 (1876). 



