JOURNAL OF CONCHOLOGY. • 25 



NOTES ON THE MARINE MOLLUSCA OF THE 



NORTH AVALES COAST, 



WITH COMPLETE LISTS OF THE RECORDED 



NUDIBRANCHS AND CEPHALOPODS. 



T. R. BROCKTON TOM LIN, B.A. 



(Read before the Conchological Society). 



A LIST of the Marine Shells of Noilh A\'ales, by the Rev. 

 Carleton Greene, was pubUshed last March in the first number 

 of 'The Conchologist,' taking the Mawddach estuary as a 

 southern limit. The species he catalogues are exclusively 

 littoral, with the exception of a few records from Jeffreys' 

 'British Conchology'; and in the following notes I shall mostly 

 confine myself to the same zone, but ^hall add a few interesting 

 finds from the shores of the Dovey estuary — a locality some 

 twelve miles south of the above-mentioned limit. As many 

 are aware, the Liverpool Marine Biological Committee include 

 the strictly North AVales coast (i.e., as far as Anglese)- and Car- 

 narvon Bay) in their sphere, and will shortly publish, for the 

 first time, a complete record of the conchological results of their 

 collecting and dredging operations, which extend to the Isle of 

 Man. I believe the total number of Mollusca hitherto placed 

 on their records (which I have had the privilege of studying) 

 is 217. 



Omitting the Jeffreysian citations, the most interesting 

 species which Mr. Greene has noted are as follows: — Axiniis 

 Jiexiiosus Poli (Portmadoc), Venus chione L. (Barmouth), V. 

 cashia L. (Barmouth), Tellina pusilla Ph. (Barmouth or 

 Mochras), Lutrarla obloiiga Ch. (Harlech), Capulus hungaricus 

 L. (Barmouth), Lamellaria perspicua L., Scaphander (Penmaen- 

 mawr). In a few cases there is an obvious misidentification of 



