108 



July 28, 1835. 

 Williani Yarrell, Esq., in the Chair. 



Specimens were exhibited of eight species of Mice and Rats, col- 

 lected in India by Walter Elliott, Esq. They were brought under 

 the notice of the Meeting by Mr. Gray, who stated that five of them 

 were hitherto undescribed. Of these he pointed out the distinguish- 

 ing characteristics. Among them were three which, on account of 

 their possessing a pecuHarity in the structure of their molar teeth, 

 he regarded as representing a section in the genus Mus, vvhich 

 might, perhaps, be considered deserving of generic distinction. 

 The remaining species were the Mus oleraceus, Benn. ; the Muspla- 

 tythrii, Ej.; and the Moiise which Mr. Gray has figured, from Gen. 

 Hardvvickes drawings, in the ' Illustrations of Indian Zoology,' 

 under the name of Arvicola Indica : it is, however, really a Mus. 



Mr. Gray stated that Mr. Elliott had made copious notes respect- 

 ing the habits of the several species exhibited, and that it vvas his 

 intention to communicate them to the Society. He added that Mr. 

 Elliott's collection contained many other interesting specimens of 

 Mammalia, as well as of other classes of animals ; and that selec- 

 tions from it would be brought, from time to time, under the notice 

 of future Meetings. 



Mr. Gray also exhibited specimens of two remarkable species of 

 Partridge, Perdix, Mey., vvhich he regarded as previously unde- 

 scribed. They were brought from the Gambia by Mr. Rendall, a 

 selection from whose collection had been exhibited at the previous 

 Meeting by Mr. Ogilby. Mr. Gray pointed out the distinguishing 

 characteristics of the birds exhibited. 



Mr, Gray subseąuently exhibited, also from Mr. Rendall's col- 

 lection, several Shells which appeared to him to be hitherto unno- 

 ticed, including an undescribed species of Cryptostoma, Blainv. 



Among the Shells of the šame collection was one that had been 

 incrusted by a Coral, but in which the mouth had been preserved 

 open in consequence of its having become the habitation of a Pa- 

 gurus, the movements of vvhich through the aperturehad prevented 

 that part of the shell from being involved in the general incrusta- 

 tion. Mr. Gray exhibited other specimens of analogous incrusta- 

 tions, some of vvhich had been regarded by authors as constituting 

 real species. The incrusting Coral is generally an Akyoniinn, but 

 in some cases it is a Cellepora. 



