1904. WEI.CH & Stelfox. — Sligo Co7ifermce, Mollusca. 193 



Plsldfum fontlnale, C. Pfr.— Rosses Point, in a drain at Doonfore, 



Lissadill, Rockwood, DrumclifF bridge, Gleuiff, CoUoouey, Glencar 



(Sligo), Dromahaire. 

 P. nfilllum, Held. — Rosses Point, in drains Raglily and Doonfore, river 



at DrumclifF Bridge, Dromahaire. 

 P. obtusale, C. Pfr. — Rosses Point ; Drumcliflf Bridge ; river at Union 



Wood, Collooney. 

 P. pusillum, Gniel. — Rosses Point, Raghly, Doonfore, DrumclifF, 



bog at head of GlenifiF; Collooney and Bundrowse river, 1900. 

 Anodonta cygnea, L. — Many dead specimens of a small thin form 



on shore at Rockwood. In 1900 we found it living in abundance in 



two or three feet of sandy mud in the little bay in Church Island. 



They are very different to the large Anodons of Glaslough 



(Monaghan), or Moira Canal (Down). 

 We have to' thank Messrs. Chaster, Jackson, and Nelson for 

 assistance on various little points that arose in identifying non-typical 

 specimens. Also Mr. Charles Oldham, who, as usual, named the Pisidia. 

 By a comparison with the last issue of the Conchological Society's 

 Census, 1902, it will be seen that this list includes 23 new Sligo and 37 

 new Leitrim records. 



Belfast. 



Marine Moli^usca. 



by g. w. chaster, m.k.cs- 



The following species are represented in a small collection of marine 



shells made by Mr. Welch and others at Raghly : — 



Anoniia ephippium. Ivittorina rudis. 



Mytilus edulis. Rissoa parva 



Montacuta bidentata. and var. interrupta. 



Tellomya ferruginosa. Manzonia costata. 



Kellia suborbicularis. Onoba striata. 



Lasaea rubra. Skenea planorbis. 



Tellina fabula. Capulus hungaricus. 



Donax vittatus. Lamellaria perspicua. 



Saxicava rugosa. Bittium reticulatum. 



Thracia fragilis. Cioniscus albidus. 



Patina pellucida. Ondina divisa. 



Gibbula tumida. Buccinum undatum. 



Delphinoidea nitens. Purpura lapillus. 



Phasianella pullus. Toruatina truncatula. 



L/acuna divaricata. Diaphana hyalina. 



Iv. pallidula. Bullinella cylindracea. 



lyittorina obtusata. Philine punctata. 



Southport. 



