2l6 



THE MARINE MOLLUSCA OF TENBY AND 

 NEIGHBOURHOOD: A FURTHER CONTRIBUTION. 



By J. WILLIAMS VAUGHAN. 



(Read before the Society, December 9, 1903). 



I HAVE been able to add several species to the list given by Mr. 

 Bartlett Span in his paper read before the Society on the 8<-h of 

 March, 1899, and thanks to his kindness I am also able to give the 

 result of his further researches. As Mr. Span remarks, this is a 

 difficult and dangerous coast to dredge properly, especially this year, 

 ■which has been so stormy ; but if the dredge could have been 

 properly worked I have no doubt a considerable number of species 

 would have been added to the list, which now consists of 227 species. 



I am anxious that my list should be as complete as possible, and if 

 any member happens to have any species from Tenby or the neigh- 

 bourhood not included in either list, I should be much obliged if he 

 would let me have the name and exact locality. 



I have to thank Mr. J. T. Marshall for his kindness and courtesy 

 in naming and verifying any doubtful species. The arrangement and 

 nomenclature are those of the Society's recently published "List of 

 British Marine Mollusca." 



Callochiton lasvis. Tenby, dredged. . 



Craspedochilus cinereus. Common everywhere. 



Acanthochites fascicularis v. gracilis. Milford Haven. 



Modiolaria COStulata. Freshwater West, living. 



M. discors. Near Manorbier. 



Crenella rhombea. Freshwater West ; one valve. 



Turtonia minuta. Freshwater West, in sea-weed washings. 



Goodallia triangularis. Carmarthen Bay, Freshwater West, 



Isocardia humana. Trawled off the Smalls. 



Lucina borealis v. gibba. Caldy Roads, dredged living. 



Lepton squamosum. Milford Haven. 



Syndosmya prismatica. Tenby sands. 



Tellina crassa. Milford Haven. 



T. donacina. Milford Haven, odd valves. 



T. pusilla. Caldy, found by Mr. J. E. Cooper. 



Meretrix chione. Goodwick, odd valves. 



Venus fasciata v. radiata. Freshwater West. 



V. casina. Freshwater West ; Milford Haven. 



Tapes aureus. Caldy, found by Mr. J. E. Cooper. 



T. puUastra v. ovata. Milford Haven. 



