64 Zoological Society. 



Genus LiMNERiA; nobis. 



Gen. Char. Shell solid, semiglobose, subspiral ; aperture wide, 

 expanded, extending posteriorly beyond the apex, rounded ante- 

 riorly ; inner lip oblique, reflexed posteriorly, straight and acute 

 anteriorly. 



Limneria Caspiensis, nobis. 



L. testa alba, subpellucida, transversim striata, dorso convexa, 

 gibbosa; spira depressiuscula, involuta; apertura ampla,patula, 

 labio postice reflexa, antice recta, acuta. 



Hab. Caspian Sea. 



Obs. We have ventured, with the kind permission of Mr. Sovv- 

 erby, sen., to characterize this interesting shell as a genus, 

 although at present we are unacquainted with the animal which 

 constructs it. It seems to be closely allied to the Lymnrndce , 

 with which family we propose to associate it. The only species 

 at present known is our L. Casjnensis. 



PROCEEDINGS OF LEARNED SOCIETIES. 



ZOOLOGICAL SOCIETY. 



December 11, 1849. -R. C. Griffith, Esq., in tlie Chair, 

 1. Description of a new genus and several new species of 



TERRESTRIAL, FLUVIATILE AND MARINE MOLLUSCOUS AnI- 

 MALS INHABITING NeW ZeALAND. Bv J. E. GrAY, EsQ., 



F.R.S., President of the Botanical Society, etc. 



Major Greenwood has most kindly transmitted to me, for the Mu- 

 seum Collection, a number of small species of terrestrial and fluviatile 

 Mollusca which he had collected near Auckland in New Zealand. 



I hasten to lay before the Society a description of those which were 

 not noticed in the Faunula attached to Dr. Dieffeubach's Travels. 



1. Ar^onid^e. I,/ 



1. Nanina? Kivi, Gray, Fauna N. Z. 262. n. 220. 

 Hah. Auckland ; Major Greenwood. 



2. Nanina Mari.e, Gray, Fauna N. Z. 2G2. n. 221. 

 Hab. Auckland ; Major Greenwood. 



These species were each described from a single specimen ; Major 

 Greenwood has sent one of the former and several of the latter, of 

 different ages, and they prove very distinct and well-marked species. 



3. Nanina? Celinde. 



Shell rather depressed, pale brown ; spire subconic ; whorls five, 

 rather closely adpressed, with transverse membranaceous ridges, the 

 last slightly keeled, convex in front ; axis with a narrow deep perfo- 



