648 Proceedings of the Royal IrhJi Academy. 



vi. PuUaheeny, Killala Bay (Miss A. Warren, '92) : between 

 Buncrana and Fahan, two speciraens (Hart, '92) : Eathmullau, 

 living (Grrainger and Falkiaer, f. Praeger). 

 Distrilution. — ISTorway to ilediterranean. llogador. ? Senegal. 



Canaries. Cape of Grood Hope (Sowerby). 



Paniily. — ItxiD^. 



My a arenaria, Linne. 



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



Abundant in sand and mud in tbe littoral zone all round tbe coast. 

 Distrilution. — Arctic seas in both bemispheres to "W. France and 

 C. Hatteras. IS^. Pacific. 



My a truncata, Linne. 

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



Common in sand and mud all round tbe coast. 



Var. ciblreviata, Jefceys. Antrim coast, 80 fms., a young live 

 specimen (Jefceys, '65). 



Distrilution. — Arctic seas in both bemispberes to Portugal and 

 New England. ? ]\Iediterranean. j^. Pacific. 



Splienia Binyhami, Turton. 



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



i. Off Ballyeastle, living (Cbaster, '97a): Turbot Bank, living, rare 

 (Hyndman, '58) : Belfast Lougb, not uncommon, dead (Hynd- 

 man, '60) : Groomsport ("Waller Coll. in Dublin !Mus.). 

 ii. Dalkey Sound, a living specimen (Kinaban, '61): Dalkey Sound,. 

 14 fms., in tbick valves of Ostrea eclulis (Walpole, '52) : Bray,- 

 two valves (Harvey, f. Tbompson, '56). 

 iii. Cork Harbour- (Wrigbt & Carroll, '52): P.. I. A. Exp., 1886, 



Glandore Harbour, 4 fms., valves (Cbaster, '98). 

 ir. E. I. A. Exp., 1886, Long Island Sound, 2,^-5 fms., and Bere- 

 baven, 5-20 fms., valves (Cbaster, '98) : Yalentia (Cockerell,. 

 '87). 

 V. BirterbuyBay (Barlee, f. Tbompson, '56). 

 vi. Carrabubbuck, EJillala Bay, valves (Miss A. Warren, '92). 

 Distrilution. — Lofi'oden I. to Mediterranean. 



