JOURNAL OF CONCHOLOGY. 225 



LAND AND FRESHWATER SHELLS OF CAITHNESS. 

 By C. W. peach, of Wick. 



[Read before the Royal Physical Society of Edinburgh, March 2Gth, 1804.] 



In 1 86 1 Mr. A. G. More, of Bembridge, in the Isle of 

 Wight, informed me that he was collecting materials for illustra- 

 ting the British Land and Freshwater MoUusca, according to 

 the method employed by Mr. H. C. Watson in his ' Cybele 

 Britannica,' and asking for information about Caithness, it being 

 included in his Province 1 7. He was then ' only able to enter 

 a single shell, Alasmodon margaritifera.^ Although I had then 

 paid very little attention to the subject I had picked up a few 

 specimens whenever they came in my way, and put them away 

 for those who might want them. At once I turned over my 

 hoards and made out a list. Not contented with merely send- 

 ing this I forwarded many of the shells, and tlius instead of 

 'only one^ he had seventeen to place in his ' Province 17.' I 

 have continued to gather, and now, as may be seen by the 

 accompanying list, we have thirty species. In order that I 

 might speak with certainty, I have asked authorities to examine 

 all the specimens for me. Foremost, J. G. Jeffreys, Esq., of 

 London, the author of the valuable work used to name and 

 arrange the list by, has seen the shells ; the Rev. Mr. Norman 

 the slugs. Mr. More has also seen many of the shells. I feel 

 under great obligations for their prompt and kind assistance. 

 With the exception of Helix ericetoripu, I have found all in the 

 parish of Wick, [and] many of them have been found as well in 

 different parts of the county. My examination has not been a 

 very strict one, nor very extended, for a great part of the county 

 I have never been in, especially inland, where additions may 

 be most expected. The last summer I added two species of 

 freshwater shells to the list, and as well confirmed three or four 

 others of which I had before only doubtful specimens. I have 

 hopes of assistance from others, for Miss Gunn of Reisgill, Mr. 

 Shearer of Ulbster, and Mr. Anderson of the John O'Groat 



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