54 



fiiblted by Mr. Gray, was brought from Dukhun by Lieut. Col. Sykes. 

 It was characterized as the 



Emys tentoria. Em. testa ovato-oblongd, olivaced ; dorso sub- 

 angulariier compresso ; scuteltis subrugosis, vertebralium primo 

 quadralo, reliquis elongato-hexagonis carinatis postici productis 

 {tertio prcEcipue) tuberculatis, niarginalibus sternalibusquejlavo 

 carinatis ; sterno subplano parum elevato. 

 Hab. in Indise Orientalis regione Dukhun dicta. 

 A fourth new species characterized by Mr. Gray was the 

 Emys platynota. Em. testd ovatd, convexd, fused ; dorso covi- 

 planato ; scutellorum vertebralium primo lato hexagono ; margine 

 suhintegro ; sterno piano ; capite luteo variegato, 

 Hab. in India Oriental!. 

 Long, test^, 9 poll. 



The shell differs at first sight from all the other species of the ge- 

 nus by the flatness of the middle of the back, agreeing in that cha- 

 racter with Hijdraspis planiceps, Bell. 



Mr. Gray also exhibited a specimen of the fresh-water Tortoise 

 which he had described in his ' Synopsis Reptilium,' under the name of 

 Cistuda Bealii, from a drawing communicated to him by Mr. Reeves. 

 The examination of the specimen subsequently received from Mr. 

 Reeves has enabled him to ascertain that it is really an Emys, which 

 is easily distinguishable from all the other known species of that ge- 

 nus by the possession of two eye-like spots on each side of the nape : 

 the shell is in form like that of Em. vulgaris. Gray ; its colour is dull 

 olive, speckled with black as in Cistuda Europcea, Gray. The name of 

 the species will now necessarily be changed to Emys Bealii. 



With these Terrapins Mr. Reeves had also transmitted to Mr. Gray 

 three specimens of Cistuda Amboinensis, Gray, two of which, differing 

 very much from each other and from the typical species in external 

 form, were exhibited. 



The first is extremely heavy and solid, with a very high back. 

 It appears to have belonged to an old animal, as the plates are 

 worn nearly smooth ; its sternum is solid, flat, rounded before and 

 behind, and the gular and anal pairs of plates are each united into 

 one, leaving only a slight groove between the gular pair, showing 

 where the division is generally placed. 



The second is very much depressed, expanded on the sides, so as 

 to be nearly orbicular, and is as wide as it is long. This extension is 

 chiefly produced by the length of the costal plates, for the vertebral 

 ones are very narrow, the front one being rather longer than broad, 

 and much narrower behind. The sternum is very broad, flat, rounded 

 before, and slightly keeled behind. All the plates are separate. 



Colonel Sykes exhibited several pieces of the leaden pipes used 

 for the supply of water to his house, which were perforated by 

 having been gnawed by Rats. 



The following notes, by Mr. Rymer Jones, of the dissection of a 



