248 VESVEKTILIOim)^. 



In the species included under the first section (subgenus Chalino- 

 lobus) the tragus reaches its greatest width above the middle of the 

 inner margin, as in Vesperugo noctttla ; and there is either no 

 lobule near the base of the outer margin, or its position is occu- 

 pied by a slight convexity. In the species included under the se- 

 cond section (subgenus Glauconycteris) there is a distinct, acutely 

 pointed, triangular lobule near the base of the outer margin of the 

 tragus, which reaches its greatest width about the middle of the inner 

 margin. In CJmlinolobus the fvir is generally dark (black or dark 

 brown) and the head and shoulders are darker than the rest of the 

 body; whUe in Qlauconycieris the surface of the fur is generally 

 light grey or cream-colour, and the head and shoulders are lighter 

 than the parts behind. In Glauconycteris also the skiiQ is shorter, 

 and the brain-case has much thinner, almost transparent walls, and 

 is much more elevated above the face-line (see skull of Ch. poensis, 

 PI. XIV. fig. 6). In all the species of the genus Ghalinolohus the 

 auditory bullae are remarkably large, although the external ears are 

 proportionately smaller than in any other genus of Vespertilionidse 

 (Plate XIV. fig. 6 a, base of skull of Gh. poensis, double natural 

 size). 



2 2 



Premolars ^—^. Subgenus Ohalinolobits. 



1. Clialinolobus tuberculatus. 



VespertUio tuberculatus, Forster, Desa-ipt. Animal, in itinere ad 



Maris Australis Terras per annos 1772-74, ^c, p. 62 (1844), ed. 



Lichtenstein. 

 Scotophilus moiio (in part), Gray, App. Grey's Narrat. Two Exped. 



p. 405 (1841). 

 ScotophUus tuberculatus. Tomes, P. Z. S. 18.57, p. 135, pi. liii. (bad) ; 



Sutton, Trans. New-Zealand Institute, iv. p. 185 (1871). 

 ? Scotophilus microdon, Tomes, P. Z. S. 1859, p. 68. 

 Ohalinolobus tuberculatus, Peters, MB. Akad. Berl. 1866, p. 679, and 



1867, p. 480 (note) ; Dohson, P. Z. S. 1875, p. 383. 



Head scarcely raised above the face-line ; ears small, scarcely 

 higher than the fur of the head, rounded off above ; the concavity 

 of the ear-conch marked with four or five distinct horizontal plicae ; 

 the inner margin commencing without forming a lobule ; the upper 

 third of the outer margin flattened, the middle third convex, then 

 emarginate opposite the base of the tragus, and terminating in a 

 prominent lobule, which is separated from the angle of the mouth 

 by a wart ; tragus narrow opposite the base of its inner margin, 

 expanded above, reaching its greatest width about the middle of 

 the concave inner margin, at the base of the outer margin a small 

 indistinct .convexity (Plate XIV. fig. 1). Nostrils opening sub- 

 lateraUy and slightly downwards, the margins of the nasal apertures 

 sharply cut and projecting above, separated by a rather wide con- 

 cave space having a small ridge in the centre ; the conjoined nasal 

 tubes forming a prominent flattened ridge on the muzzle above, 

 which is separated by a very distinct groove on each side from the 



