1871.] GK E. Dobson — On a neio Genus of fihmolophidce, fre. 457 



opened by drawing the lower lanceolate process of membrane for- 

 wards and tlie upper central projection backwards. A small, qua- 

 drilateral opening is thus disclosed, having for its lower and upper 

 boundaries the bases of these projections. Through this opening 

 the animal has probably the power of admitting air at will to the 

 central cell which is spacious and most likely acts as an accessory 

 nasal cavity, to the sides of which part of the terminations of the 

 olfactory nerves may be distributed. The form of the lower lan- 

 ceolate process of the nose-leaf which is laterally flattened in front 

 of the opening to the cell, favours this supposition. 



The wings present some remarkable peculiarities of structure. 

 From the outer side of the proximal extremity of the terminal 

 phalanx of the third finger a small process of bone arises with an 

 inclination forwards, and terminates by an obtuse point in the 

 wing membrane in which it is included. The distal extremity of 

 the same phalanx is very shortly bifid as in most Rhinolophine 

 bats, but the terminal phalanx of the fourth finger ends in a single 

 point. 



Wing membrane attached to the tibia a short distance above the 

 ankle ; feet long, slender ; toes armed with long and strong claws ; 

 tail included in the interfemoral membrane, the extreme tip 

 alone free. 



On the upper surface the fur is very pale buff, almost white, 

 with light sepia tips, darkest on the back of the neck, along the 

 anterior margin of the scapulae, and between the shoulders ; 

 towards the root of the tail of a yellowish tinge throughout ; be- 

 neath, wholly very pale buff or dirty yellowish -white, cutaneous 

 system of the same colour. The fur is everywhere long and dense ; 

 in front it covers the posterior surface of the hinder nose-leaf, ex- 

 ceeding in length the height of the trident-shaped crest ; the 

 inner edge of the ear, as far as the emargination, is clothed ante- 

 riorly with long hairs which also occupy the interior of the conch, 

 but are finer, and more thinly spread in the latter situation ; be- 

 hind, the fur of the back extends on to the base of the interfemoral 

 membrane Nearly as far as the end of the second caudal vertebra ; 

 on the wing membrane its extent is very limited ; beneath, the 

 wing membrane is covered with hair nearly as far as a line drawn 



