The land, freshwater and marine molluscs of Scarborough

摘要

Since the publication of the second volume of The Natural History of the Scarborough District by The Scarborough Field Naturalists' Club in 1956 (Walsh & Rimington, 1956), many nomenclatural changes have occurred and a number of additions to the molluscan fauna have been recorded. In addition, as a direct result of an ongoing mapping project in Yorkshire, our understanding of the distribution of species within the county is now much improved. In the two lists below I have included common, or vernacular, names for the species for which such names have been widely accepted.The coverage of the original publication encompassed an area bounded by Bridlington in the south, Robin Hood's Bay to the north and as far inland as Malton. The chapter on marine mollusca edited by Prof Spaul (pp 42-64) and the chapter by E. Arnold Wallis and Athol J. Wallis on the land and freshwater mollusca (pp 336-350) followed this format. However, in this review I will restrict myself to a tighter area bounded by Yons Nab to the south, Scalby Ness Rocks to the north and extending no further inlandthan the Hackness area. This restricted geographical area features a number of species from both the marine and land and freshwater faunas which, in reality, have not been recorded in the close vicinity of Scarborough. In order to keep the faunal listsas short as possible I have restricted myself to those records that post-date the 1956 publication mentioned above and, even then, only to the most important new changes and additions.