53 



" Tlie hinder nose-leaf is bristly, ovate-lanceolate^ nearly as broad 

 at the base as the face, with a rather produced tip; the septum of the 

 nose is grooved ; and the front leaf expanded with a quite free mem- 

 branaceous edge. The head is elongated ; the face depressed ; the 

 muzzle rounded ; the ears are large, reaching when bent down 

 rather beyond the tip of the nose. The fur is soft and of a pale 

 mouse colour. The membranes are dark and naked, with rather di- 

 stant whitish hair on the under side near the sides of the body. 



" This Rat is very nearly allied to the true European Rhinolophi, 

 and agrees with them in having four cells at the base of the hinder 

 nose-leaf, and distant pectoral teats. It differs from them in having a 

 much broader nose-leaf. The pits on the nose and the distant teats 

 are not found in the other Rhinolophi, which have no hinder nose- 

 leaf. These I propose to separate from the others under the name 

 of Hipposiderus." 



Mr. Gray also exhibited specimens of tieveral fresh-water Tortoises. 



Of these he had recently received three from John Russel Reeves, 

 Esq., of Canton, two of which he regarded as being previously un- 

 described. These he now characterized as follows : 



Emys nigricans. Em. testd ohovato-ohlongd, convexd, nigro- 

 fuscd ; subtricarinatd, carind mediand obtusd postici continud, 

 lateralibus indisiinctis distantibus ; scuteUis obscure radiatis, ver- 

 tebralibus latis, anterioribus pentagonis ; marginibus revolutis, 

 posticd subserratd ; infrcL ad latera luteo maculatd; sternum sub- 

 convexum, luteum, nigra variegatum. 

 Long, teslce, 3 poll. 

 Hob. in China prope Canton. 



This species is nearly allied in shape and colour to Em. crassi' 

 collis, Bell, biit diff^ers by the distance and indistinctness of its la- 

 teral keels, the convexity of its sternum, and the shape of its anterior 

 vertebral plates. From Em. Thurjii, Gray, it is distinguished by its 

 smaller size, the darkness of its colour, and the yellow spotting 

 on the under side towards the edge of the shell. 



The character is taken from a half-grown shell, from which the 

 animal had been removed. 



Emys Sinknsis. Em. testd ovatd, convexd, subcarinatd, olivaced 

 nigro punctatd ; scuteUis lavibus, luteo strigatis, vertebralibus 

 latis hexagonis ; marginibus integris, lateralibus subrevolutis ; sub- 

 tUs luted, maculis oblongis olivaceis nigro marginatis ornatd; 

 sterni lateribus subcarinatis : collo lineis tenuissimis Jlavis notato. 

 Long. testcB, 5 poll. 

 Hab. in China. 



Allied to Em. vulgaris, Gray, but easily distinguished by the 

 orange streaks in the centre of each discal shield. The under side 

 of each of the marginal plates is marked near its hinder edge by a 

 large oblong subquadrate olive spot, which is dotted and margined 

 with black ; the axillary and inguinal plates are marked with a black 

 ring. The sternal plates are varied with brown. 

 A third undescribed species of Emys, of which a specimen was ex- 



