13. NrcTiNOMUs. 441 



Ears qiiite separate, arising from the sides of the forehead at a 

 short distance above and in i'ront of the eyes ; the inner margin of 

 the ear-conch slightly convex for two thirds its length, abruptly 

 concave in upper third, so that the upper extremity of the ear is 

 attenuated, and the subacute tip projects forwards and inwards 

 instead of backwards and outwards as in most species of Bats 

 (Plate XXI. fig. 5) ; outer margin of the conch forming almost a 

 straight line from the tip to its termination near the angle of the 

 mouth, interrupted only by a slight emargination opposite the 

 middle of the tragus indicating the commencement of the anti- 

 tragus ; tragus nearly as broad as high, irregularly triangular, with 

 a truncated vertical angle. Muzzle flat, extremity projecting con- 

 siderably beyond the lower Up ; sides of the upper lip with short 

 ill-defined vertical wrinkles. In males a large glandular sac opens 

 in the centre of the inferior surface of the neck ; in females rudi- 

 mentary. 



Wings from the distal third of the tibiae ; the fifth toe not so 

 much thickened as the first. 



Fur dark reddish brown above, somewhat paler beneath. 



Upper incisors separate from the canines and also from each 

 other ; lower incisors small, slender, bifid, crowded ; the second 

 incisor on each side slightly overlapped by the margins of the first 

 and third ; canines without basal cusps ; the single upper premolar 

 separated by a narrow interval from the canine, with a projecting 

 base internally, which is concave behind, and anteriorly develops 

 an acute cusp ; first lower premolar unicuspidate, equal to three 

 fourths the second in vertical extent. 



Length (of an adult <£ ), head and body l"-9, tail 1""7, tail free 

 from membrane 0"-6, head 0"-75, ear 0"*6, tragus 0"*15, forearm 

 l"-55, thumb 0"-25 ; third finger — metacarp. l"-5, 1st ph. 0"-6, 

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

 0"-4 ; fifth finger— metacarp. 1"-15, 1st ph. 0"-4, 2nd ph. 0"-2 ; tibia 

 0"-4, foot 0"-35. 



Hab. S.E. Africa (Natal) ; Madagascar ; Bourbon ; Mauritius. 



«, 6. (?& 2 ad., aL Mauritius. Zool. Soc. Coll. 



c. cJ ad., aL A. Newton, Esq. [P.]. 



d. ad. sk. M. Parzudaki [C.]. 



The three last-described species, iV. norfolcensis, N. albivenfer, 

 and M. acttahulosus, diifer from all the other species of the genus 

 in the relative lengths of the metacarpal bones of the third and 

 fifth fingers, resembling rather, in this respect, the species of the 

 subgenus Myopterus (gen. Molossus). In aU other species of Nyc- 

 tinomus the metacarpal bone of the third finger is double the 

 length of that of the fifth ; in these three species, and in Myop- 

 terus, it is but one half longer. These species also agree together 

 in the form of the tragus (in which they also differ from aU other 

 species of Nyclinomus and resemble Myopterus), in their distinctly 

 separated ears, in the possession of six lower incisors, and in the 



