4 TRANSACTIONS. NATURAL HISTORY SOCIETY OF GLASGOW. 



to Mr. Praeger and asked for information of former research 

 carried on in the neighbourhood, and he very kindly sent me a 

 reprint of his work, which appeared in the Proceedings of the 

 Belfast Naturalists' Field Club for 1887-88, though actually 

 published in 1889. The pamphlet is a long one of 50 closely- 

 printed pages, and gives a full list of all species and varieties 

 recorded by previous workers in the North of Ireland. It 

 summarises the Irish localities mentioned in (1) Forbes and 

 Hanley's British Mollusca; (2) The Natural History of Ireland, by 

 William Thompson; (3) the Reports of the Belfast Dredging 

 Committee, by George C. Hyndman ; (4) Report on the Marine 

 Zoology of Strang ford Lough, by Professor Dickie ; (5) Jeffreys' 

 British Conchology ; (6) private lists drawn up by a number 

 of individual workers. 



Mr. Praeger's catalogue then, exhaustive as it appears, is seen 

 to deal more with the shells of the east coast of Antrim than 

 with those found in the north. I have, therefore, thought it 

 advisable, whenever mention is made in his list that any species 

 has been found on the North Antrim, or Derry coasts, to enter 

 the same in my own list, that comparison of the two may be 

 facilitated. Magilligan Strand, which is separated from the Port- 

 Stewart beach by the River Bann and by the high ground near 

 Castlerock. enjoys a reputation for yielding large varieties of 

 species; wherever a shell is common to its sandy stretch and that 

 about Port-Stewart, I have mentioned the fact as an interesting 

 occurrence. 



Besides Mr. Praeger's exhaustive list, there is an excellent 

 article by Dr. Geo. W. Chaster in The Irish Naturalist, Vol. VI., 

 p. 120, 1897, entitled "A Day's Dredging off Ballycastle, Co. 

 Antrim." So large is the number of species recorded from that 

 day's work, that I have thought it well to indicate by an asterisk 

 any species or varieties obtained by myself at Port-Stewart, 

 which were not collected at Ballycastle by Dr. Chaster's party. 



There was, however, another point which occurred to me on 

 working out the molluscan fauna of this Irish coast. It was the 

 degree of correspondence or difference between the shells of the 

 Antrim and Derry shores, and those of the Clyde estuary. I 

 have, therefore, deemed it a matter of sufficient interest to institute 

 a comparison between these respective faunas, and in every case 



