Nichols— -4 List of the Marine Mollusca of Ireland. 661 



Thracia distorta (Montagu). 

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



i. Near Belfast, in limestone (Grainger, f. Thompson, '56). 

 ii. Portmarnock (Warren Coll., f. Thompson, '56) : Dublin Bay (rare, 

 Brown, '18; living, Turton, '19; Harvey, f. Thompson, '56; 

 living, rare, Kinahan, '61) : Dalkey Sound, rare (Walpole, 

 '53a) : Bray (Harvey, f. Thompson, '56). 

 iii. Tramore Bay, in limestone (Walpole, '52) : Toughal, in limestone 

 (Ball, f. Thompson, '56) : Cork Harbour, rare (Humphreys, 

 '45). Var. truncata, Turton. Cork (Jeffreys, '65). 

 iv. Bantry Bay (rare, Humphreys, '45 ; ITorman, f. Jeffreys, '59) : 

 dredged in or near Bantry Bay (M'Andrew, f. Thompson, '56, 

 sub Venus sinuosa). 

 V. Koundstone (living, Alcock, '65; D'ArcyW. Thompson): E.D.S. 



Fish Survey, 1890, Eoundstone, one valve (Jordan). 

 vi. Carrahubbuck, frequent, though rarely found alive (Miss A. 

 Warren, '92). 

 Distrilution. — Einmark to Mediterranean. Florida to Honduras 

 (Dall). 



'i\_Thracia truncata (Bro^wn).] 

 . . . iv., . . 

 iv. West of Cape Clear, 1000 fms. (King, '63, Jeffreys, '65). 

 Distribution. — Arctic seas in both hemispheres. 



Order.— SEPTIBRANCHIATA. 



Family. — Poeomyid^. 



Poromya granulata (jSTyst & Westendorp). 



. . . iv., . , 



iv. '< Porcupine" Exp., 1869, 85-110 fms. (Jeffreys, '81). 



Distrilution. — Einmark. Loffoden I. to Mediterranean. Morocco, 

 " Travailleur." ? Madeira. ISTew England to W. Indies. 



Family. — Cuspid ajiiid^. 



Cuspidaria cuspidata (Olivi). {NecBra cus])idata, Jeffreys, B. C.) 

 . . iii., iv., v., . 

 iii. R. 1. A. Exp., 1888, off S. coast of Cork, 50 fms. (A. R. N.) : off 

 Cape Clear, 60 fms. (M'Andrew, f. Thompson, '56 ; Warren 

 Coll. in Dublin Mus.). 



