524 Proceedings of the Royal Irish Academy. 



Alvania cancellata (Da Costa). {Rissoa ca.neellaia, Jeffreys, E. C.) 



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



i. Off Ballycastle, dead (Chaster, '97a) : off Larne, 18-20 fms 

 (Jeffreys, '67) : Turbot Bank, dredged sand, dead, and off 

 Black Head, 25 fms. (Hyndman, '58, '59) : Strangford Lough, 

 7-20 fms., and off entrance, 12-15 fms., dead, rare (Dickie, 

 '58). 



ii. Portmarnock (Brown, '18; TV arren, f. Thompson, '56): Dublin 

 Bay (Turton, '19). 



iii. Ardmore (]Mrs. ]\Iackesy, f. Thompson, '56) : Xymph. Bank, 50 

 fms. (IT'Ancbew, f. Jeffreys, '67): E.LA. Exp., 1885, 

 1886, off S. coast of Cork, 52^-551 fms. (Chaster, '98). 



iv. Bantry Bay (Hiss Hutchins, f. Leach, '52 ; &c.) : E.I. A. Exp., 



1885, 5-44 fms. (Chaster, '98). 

 V. Aran I. and Brrterbuy Bay (Barlee, f. Forbes & Hanley, '53) : 

 Bii'terbuy Bay (Marshall, '98) : Eoundstone (D'Ai'cy W. 

 Thompson). 



vi. Carrahubbuek, Killala Bay, occasionally (Miss A. "Warren, '92) : 

 Ejllala Bay (Marshall, '98) : Bundoran (Thompson, '56 ; 

 WaHer CoU. in Dublin Mus.). 

 Bistrilutioji. — Hebrides to Mediterranean. Azores, "Challenger." 



Madeira. Canaries. 



Alvania calatJms (Forbes & Hanley). {Sissoa calathus, 

 Jeffreys, B. C.) 



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



i. Off Ballycastle, dead (Chaster, '97a): Turbot Bank, dead (Waller, 

 '58 ; Hyndman, '58). 

 iii. E. I. A. Exp., 1886, off S. coast of Cork, 52i fms. (Chaster, 



'98). 

 iv. Off Mizen Head, 50 fms., dead (M'Andrew, f. Forbes & Hanley, 



'53) : Bantry Bay (Marshall, '98). 

 V. Kilkee (Warren, f. Thompson, in Forbes & Hanley, '53) : Con- 

 nemara (Marshall, '98) : Eoundstone (D'Arcy W. Thompson), 

 vi. Killala Bay (Marshall, '98). 



JJisirilution. — Hebrides to Mediterranean. Azores, " Challenger." 

 Canaries. Cape of Good Hope (SoTverby), 



A. calatlms is now generally regarded as a variety of the following 

 species. 



