Nichols — A List of the Marine MoUusca of Ireland. 529 



Yar. exilis, Jeffreys. Killala Bay, rare (Miss A. Warren, '92 ; 



Marshall, '99). 

 Bistribution. — Finmark to Mediterranean. Madeira. Canaries. 

 K Atlantic, "Valorous." 



Rissoa inconspicua, Alder, 

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



i. Off Ballycastle, living (Chaster, '97a) : TurbotBank, dead (Hynd- 



man, '58) : off Black Head, 25 fms. (Hyndman, '59). 

 ii. Portmarnock (one specimen, Thompson, '56 ; Adams, '78) : Dublin 



Bay (Jeffreys, f. Forbes & Hanley, '53; Walpole, '53a; Waller, 



f. Kinahan, '61). 

 iii. Youghal (Miss M. Ball, f. Thompson, '56, sub Rissoa alha, Adams) : 



R. I. A. Exp., 1885, 1886, Glaudore Harbour, 4 fms., and off 



S. coast of Cork, 30-551 fms. (Chaster, '98). 

 iv. Bantry Bay (Jeffreys, f. Forbes & Hanley, '53) : Dingle Bay, 54 



fms. (Adams, f. More, '70) : E. I. A. Exp., 1885, 1886, 1888, 



3i-110fms. (Chaster, '98). 

 V. Bii'terbuy Bay (Jeffreys, f. Forbes & Hanley, '53) : Boundstone 



(Alcock, '65). Yar. variegata, v. Mohrenstern. Roundstone 



(B. S. Dodd in Journ. of Conch., vi., 1890). 

 vi. Enniscrone (Marshall, f. Miss A. Warren, '92) : Bundoran, one 



specimen (Mrs. Hancock, f. Thompson, '56): "Porcupine" 



Exp., 1869, Donegal Bay, 25-40 fms. (Jeffreys, '84) : Mulroy 



Bay, dead (Praeger, '94). 

 Bistrilution. — Finmark to Mediterranean. Madeira. Canaries. 



Rissoa alhella, Loven. 



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



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

 iii. R. I. A. Exp., 1886, Grlandore Harboui-, 4 fms., and Lough Hyne 



(Chaster, '98). 

 iv. Bantry Bay, low water (Barlee, f. Jeffreys, '67 ; Marshall, '99) : 

 R. I. A. Exp., 1885, 1886, Long Island Sound, 3^-5 fms., and 

 Berehaven (Swanston, '86, Chaster, '98) : Kenmare River 

 (Praeger, '99). 

 V. Conuemara (Marshall, '99). 

 vi. Killala Bay (Marshall, '99). 



Distrihution. — Norway to Mediterranean. 



R. alhella is probably only a variety of R. inconspicua. 



