102 WARREN : MARINE MOLLUSCA OF KILLALA BAY, iRELANt). 



Lutraria elliptica Lam. Abundant. After storms cast up 



alive on the sandy shores of Bartra and Enniscrone, on 



the sea-ward side. 

 Scrobicularia prismatica (Mont.). A few single valves, 



Enniscrone. 

 S. piperata (Gm.). 

 Ceratisolen legumen (L.). Frequently cast up alive after 



storms^. 

 Solen ensis L. 

 S. siliqua L. 

 Thracia prastenuis (Pult.). A few perfect specimens were 



obtained at Bartra. 

 T. papyracea (Poli). I have seldom met with this shell. A 



few perfect and full-grown specimens on Bartra, and two 



valves of the var. vlUosiusciila in shell-sand, Enniscrone. 

 T, distorta (Mont.). Of frequent occurrence in the debris 



amongst the rocks at Carrahubbuck, though rarely found 



alive. More numerous in winter, when the storms have 



broken up the perforated rocks in which they harbour. 

 Corbula gibba Olivi. 



My a arenaria L. Abundant in the estuary. 

 M. binghami (Turt.). Odd valves at Carrahubbuck. 

 Saxicava rugosa (L.). The limestone all along the coast is 



excavated by this species. I have got the var. pholadis (L.), 



and var. pnccisa (Mont.), the latter at low-water attached to 



stones in rock-pools. 

 Venerupis irus (L.). Very common, occupying the deserted 



burrows of Saxicava rugosa. I have frequently taken the 



young in rock-pools at low-water. 

 Teredo megotara Han. Drift timber, several times. 

 Chiton Idas. Of these I have no record, as I never collected 



any, although seeing several when shell-hunting at low-water. 

 Patella vulgata L. 

 Helcion pellucidum (L.). Common on the La i/unarue. 



J.C. Oct., vii., iSg2. 



