Nichols — A List of the Marine MoUusca of Ireland. 539 



Family. — CnENOPODiDiE. 



Chenopus pes-pelecani {lATirL^). {Aporrhdis pes-pelecani, Jeffreys, B. C.) 

 i., ii., iii., iv., v., vi. 



Of general occurrence all round the coast, principally in tlie 

 coralline zone. 



Var. albida, JeSreys. Dublin Bay (Waller, f. Jeffreys, '67). 

 Bistrilution. — Iceland. Pinmark to Mediterranean. 



Chenopus serresimius (Michaud) . {AporrhaisMaeandrea, Jeffreys, B.C.) 



. . . iv., v., . 



iv. "Porcupine" Exp,. 1869, 85-722 fms. (Jeffreys, '85): off Yalentia 

 (Waller, f. Norman in Journ. of Conch., ii., 1879 ; Waller Coll. 

 in Dublin Mus.) : " Eesearch " Trawling Cruise, 1889, 200 

 fms. (Bourne, '90, suh Aporrhais pes -carhonis). 



V. '^Porcupine" Exp., 1869, 85-183 fms. (Jeffreys, '85). 

 Distribution. — Piamark to Mediterranean. 



Family. — Cype^ed^. 



Amphiperas patula (Pennant). {Ovula patula, Jeffreys, B.C.) 

 i., . iii., . v., . 



i. Magilligan (one specimen, Mrs. R. A. Hyndman, f. Thompson, 

 '56 ; one specimen, Grainger Coll., f. Praeger) : Castlerock, 

 one specimen, and Port Stewart, two specimens (Grainger 

 Coll., f. Praeger) : Turbot Bank, a single specimen, dead 

 (Waller, f. Hyndman, '58). 

 iii. Off Saltee I., co. Wexford (Walpole, '52) : P. I. A. Exp., 1885, 



off Baltimore, 30 fms. (Chaster, '98). 

 V. Aran I. and Birterbuy Bay (Barlee, f. Thompson, '56). 

 Bistrihdion. — S. England and Ireland to Mediterranean. 



Trivia europcea (Montagu). {Cypr<^a europcea, Jeffreys, B. C.) 



i., ii., iii., iv., v., vi. 



Generally distributed all round the coast from low-water mark to 

 100 fms. 



Var. minor, Marshall. West coast of Ireland (Marshall, '93). 

 Distribution. — Iceland. Finmark to Mediterranean, 



