•522 Proceedings of the Royal Irish Academy. 



Lacuna puteolus (Turton). 

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



i. Grenerally distributed, but not common. Var. conica, Jeffreys. 



Co. Antrim (Hyndman, f. Jeffreys, '65). 

 ii, Portmarnock (Adams, '78): Howtli (Hart, '92): Dublin Bay 



(Turton, '19 ; Leach, '52) : Killiney, &c., rare (Walpole, '53a). 



Yar. conica. Ireland's Eye (A. Macalister, f. Adams, '78). 

 iii. Ardmore (Mrs. Mackesy, f. Thompson, '56) : Baltimore fA. B. N.). 

 V. Kilkee (Thompson, '56) : Boundstone (Alcock, '65 ; Standen, 



'95) : Achill I. (Mrs. Tatlow & Praeger, '98). 

 vi. Mayo, a dwarf form (Marshall, '98) : Killala Bay (Miss A. 



Warren, '92) : Bundoran (Belfast Mus., f. Praeger, '89 ; 



Waller Coll. in Dublin Mus.) : Narin, &c., co. Donegal (Mrs. 



Tatlow, '99 ; G. P. Farran) : Mweelfinn, &c. (Hart, 92). Var. 



conica. Mayo (Marshall, '98). Var. auricularis, Montagu. 



Biver Moy, co. Mayo (Miss "Warren, f. Marshall, '98). Var. 



expansa, Jeffreys. Killala Bay (Marshall, '98). 

 Distrihution. — Pinmark to Spain. Greenland. 



Lacuna pallidula (Da Costa). 



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



i. Generally distributed on Laminarife, &c. Var. neritoidea, Gould, 

 Groomsport (Marshall, '98). 



ii. Malahide (Adams, '78) : Dublin Bay (Dublin Mus.) : Killiney, 

 &c., rare (Walpole, '53a). 



iii. Ardmore (Mrs. Mackesy, f. Thompson, '56) : Cork Harbour 

 (Humphreys, '45): B. I. A. Exp., 1885, 1886, Glandore Har- 

 bour, 4 fms., and off Baltimore, 30 fms. (Chaster, '98). 



iv. B. LA. Exp., 1885, Berehaven, 5-25 fms. (Chaster, '98): Ken- 

 mare Biver (Praeger, '99). Var. patula, Thorpe. Bantry Bay 

 (Barlee, f. Jeffreys, '65). 

 V. Miltown Malbay (Harvey, f. Thompson ms.) : Boundstone 

 (Alcock, '65 ; Standen, '95) : Clew Bay (Thompson, '56) : 

 Achill I. (Mrs. Tatlow & Praeger, '98). 



vi. Killala Bay (Miss A. Warren, '92) : Bundoran (Mrs. Hancock, 



f. Thompson ms.) : Narin, co. Donegal (Mrs. Tatlow, '99; 



G. P. Earran) : near Dunfanaghy, and at Mweeldnn, Sheephaven 



(Hart, '92). 



Distrilution. — Spitzbergen. Iceland. Einmark to W. Erance. 



Greenland. N. E. America. 



