{Proceedings Belfast Naturalists’ Field Club . — Appendix 1887-1888.) 
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INTRODUCTION. 
N compiling the following list of the recent Marine Shells of the 
North of Ireland, the object of the writer has been to bring together, 
and present in simple and accessible form, the information which 
we possess regarding this attractive branch of local zoology. The 
literature hearing on the subject consists of a number of papers and notes 
scattered through various publications, some of them not easily obtainable 
by the enquirer, while the matter which they contain is generally in such a 
form that it is not easy to discover immediately what shells have been found in 
our district, and in what localities. Such, too, is the difference of nomencla- 
ture in the works referred to, that it is a task of some difficulty to compare and 
correlate the lists of Mollusca which they contain ; and in Thompson’s works, 
indeed, which were published before the value of systematic nomenclature was 
appreciated as it is nOw, it is occasionally very troublesome to find what species 
is intended. In the list which follows, the names adopted by J. Gwyn Jeffreys 
in his “ British Conchology” — the standard work on the subject— are employed, 
and where a species is referred to by any of the authors quoted under a different 
name, such synonym is appended in parenthesis. 
The sources of information which have been utilised in preparing the present 
paper are as follows : — 
I. “A History of British Mollusca,” by Messrs. Forbes and Hanley. 
This work supplies a few North of Ireland stations for species, other than those 
taken from Thompson’s work, to be mentioned immediately. 
