Il6 JOURNAL OF CONCHOLOGY. 



NOTE ON THE RANGE OF PALUDINA VIVIPARA (L.). 

 By J. W. TAYLOR. 



Rimmer in his useful and handy work "The Land and 

 Freshwater Shells of the British Isles" p. 27, credits this species 

 for Scotland, as having been 'found at Findhorn, in the Moray 

 Firth district,' and also adds 'Brown in his 'Recent Conchology' 

 says it occurs in Ireland in a stream at Newtownards, Co. Down.' 



Both these records would appear to be erroneous. The 

 Scottish locality is evidently copied from 'British Conchology,' 

 and in that excellent work, the authority for the record — Rev. 

 Dr. Gordon — is given, but it has unfortunately been overlooked 

 by both authors that Dr. Gordon expressly stated that the 

 specimen found was a ballast shell, and therefore not belonging 

 to the district. 



The Irish record would also seem to be incorrect but for a 

 different reason. Capt. Brown certainly published Paludina 

 vivipara Lam. as occurring at Newtownards, but the species he 

 referred to was the Palndi7ia contecta of more modern authors. 

 The P. contecta Millet, being synonymous with P. vivipara 

 Lamarck, Miiller and others. Paludina vivipara L. is afterwards 

 referred to as inhabiting England under Draparnaud's name of 

 achatina. Mr. Thompson, in his Catalogue of the Land and 

 Freshwater MoUusca of Ireland, remarks : — "Mr. Gray incident- 

 ally notices Paludina achatina as an Irish species, but on 

 enquiry of him he could not recollect from whom he had received 

 the information." Dr. Gray, however, in his edition of Turton's 

 Manual, gives only P. contecta as inhabiting Ireland under the 

 name of vivipara ; this name being applied at that time to the 

 other species. 



It would thus appear that the true Paludina vivipara does 

 not yet belong to the faunse of either Scotland or Ireland, though 

 it is not improbable that it may yet be found in the latter 

 country. — July 30th, 1883. 



J.C, iv., Oct., 1883. 



