1866.] DR. J. E. GRAY ON THE RHINOLOPHINE BATS. 81 



Urotrichus talpoides, Temm., Dicrurus leucopheeus, Vieill., and 

 Urocissa sinensis. 



Mr. W. H. Flower read the first part of a Memoir on the Osteo- 

 logy of the Sperm-Whale (Physeter) . This will be published in 

 the Society's 'Transactions,' with Illustrations. 



The following papers were read : — 



1. A Revision of the Genera of Rhmolophidse, or Horseshoe 

 Bats. By Dr. J. E. Gray, F.R.S., V.P.Z.S., F.L.S., &c. 



At the preceding Meeting I gave an account of the genera of Pte- 

 ropidce. I have lately been revising my former manuscript on the 

 Horseshoe Bats, and adding descriptions of the specimens which 

 have been received at the British Museum since it was composed. 



The family Rhinolophidce is characterized as containing Leaf- 

 nosed Bats, which have only rudimentary intermaxillary bones, sus- 

 pended in the nasal cartilages. They sometimes have upper cutting- 

 teeth ; but these are generally early deciduous. The hinder, erect 

 portion of the nose-leaf is often complicated and divided by septa 

 into cells. 



I. Nose-leaf broad, expanded, horseshoe-shaped in front, with the 

 nostril near the centre ; the hinder portion erect, triangular, 

 acute, with cells on the side of its front surface. Tragus 

 none. 



» 



1. The hinder, erect part of the nose-leaf with three cells on each 



side in front, and a compressed central process ; front portion 

 simple, without any pits. Tail and heel-bone distinct. Teeth 

 32 ; molars 3/3, premolars 2/3. Bhinolophina. 



1. Aquias. Front edge of the central longitudinal nasal process 

 broad, with a membranous edge, which is expanded and folded down 

 on each side of its base. A. Indus and A. trifoliata. 



2. Phyllotis. Front of the central longitudinal nasal process 

 broad, with a membranous edge, which is continued so as to form a 

 concavity between the nostrils. P. philippensis . 



3. Rhinolophus. Front of the central longitudinal nasal pro- 

 cess flat, without any membrane on the edge or lobe at the side of 

 the base. R. hastatus. 



2. The hinder, erect part of the nose-leaf with one cell on each side, 



and one in the centre of the front, and with a compressed lon- 

 gitudinal process ; the front, horseshoe- shaped portion fringed 

 with a longitudinal crest, ending in a pit between the nostrils. 

 Rhinonycterina. 



4. Rhinonycteris. R. aurantius. 

 Proc. Zool. Soc.— 1866, No. VI. 



