-638 Proceedings of the Royal Irish Academy. 



Family. — C^cid^. 



C(Bcum trachea (Montagu). 



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



i. Turbot Bank (Hyndman Coll. in Belfast Mus., f. Praeger, '89) : 

 Strangford Longh ("Waller, f. Jeffreys, '69). 



ii. Portmarnock (Hart, '92) : Dublin Bay (Waller, f. Jeffreys, '69). 



iii. Youghal (J. Wright, f. Wright & Carroll, '52) : Cork Harbour 

 (Jeffreys, f. Forbes & Hanley, '53). 



iv. Bantry Bay (Thompson, '56; &c.) : R. I. A. Exp. 1885, 1886, 

 Long Island Sound, 3J-5 fms., Berehaven, 5-25 fms., and off 

 DurseyHead, 35-40 fms. (Swanston,'86, Chaster, '98, A. R. N.). 



V. Miltown Malbay (Harvey, f. Thompson, '40) : Aran I. (Barlee, 

 f. Jeffreys, '67) : Poundstone (B. S.Dodd in Joum. of Conch., vi., 

 1890 ; D'Arcy W. Thompson) : Connemara (Marshall, '99). 



vi. Mayo and Sligo (Marshall, '99) : Bundoran (Thompson, '44). 

 Distribution. — British Isles to Mediterranean. Madeira. Canaries. 



Ccecum glabrum (Montagu), 

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



i. Off Ballycastle, living (Chaster, '97a) : Belfast Lough, shell-sand, 



deep water (Hyndman, f. Thompson, '56) : Tui'bot Bank, dead, 



rare (Hyndman, '58). 

 ii. Dublin Bay (Waller, f. Kinahan, '61). 

 iii. Cork Harbour (Wright & Carroll, '52 ; Jeffreys, f. Forbes & 



Hanley, '53) : P. I. A. Exp., 1885, 1886, Glandore Harbour, 



4 fms.. Lough Hyne, and off S. coast of Cork, 30-52|- fms. 



(Chaster, '98). 

 iv. Bantry Bay (Brown, '44 ; Jeffreys, f. Forbes & Hanley, '53) : 



P. I. A. Exp., 1885, 1886, 0-40 fms. (Swanston, '86, Chaster, 



'98). 

 V. Miltown Malbay (Harvey, f. Thompson, '40) : Roundstone 



(Alcock, '65; Standen, '95 ; fry very common, Marshall, '99; 



D'Arcy W. Thompson). 

 vi. Killala Bay (Miss A. Warren, '92): Bundoran (Thompson, '44; 



Dublin Mus.). 

 Distribution. — ISTorway to Canaries. ? Mediterranean. Hatteras 

 .and Florida (Dall). 



