Nichols— -4 Lid of the Marine MoUusca of Ireland. 585 



Pamily. — Pleitrobranchid^. 

 Pleurolrajiclms memlranaceus (Montagu). 



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



1. Belfast Loiigh, and off Groomsport, 6-8 fms., living (Hyndman, 

 f. Thompson, '56 ; Hyndman, '58) : Carrickfergus (Dublin 

 Mus.). 

 ii. Portmarnoek (Adams, '78) : Dublin Bay (Kinahan, '61). 

 iii. Cork Harbour, a living specimen (Humphreys, '45). 

 iv. E. I. A. Exp., 1888, Bereliaven, 7 fms., living (A. E. 'E.). 

 V. Aran I. and Birterbny Bay (Barlee, f. Porbes & Hanley, '53). 

 Distribution. — British Isles to Mediterranean. 



Pleur oh ranches plumula (Montagu). 



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



ii. Portmarnoek (Warren Coll. in Dublin Mus.) : Dublin Bay 



(Kinahan, '61). 

 iii. E. I. A. Exp., 1888, off S. coast of Cork, 50 fms., living (A. E. JS^.). 

 iv. Bantry Bay (Norman, f, Jeffreys, '67; Dublin Mus.): Yalentia 



(Gamble, '96). 

 V. Miltown Malbay, very rare (Harvey, f. Thompson, '56) : Eouud- 

 stone ( A] cock, '65 ; M'Calla, f. Thompson ms. ; Dublin Mus.) : 

 E. D. S. Eisli. Survey, 1890, Blacksod Bay, living (A. E. N.). 

 Bistrilution. — JN^orway to Mediterranean. Madeira (Watson). 



Sub- order. — Ascoglossa. 



Pamily . — Heeit^^id m . 



Sermcea lijicla (Montagu). 



i. Belfast Lough (Getty and Hyndman, f. Thompson, '56). 

 iii. Coast of Cork (E. P." Wright, '59): Baltimore (A. E. K). 

 iv. Coast of Kerry (E. P. Wright, '5i9). 

 vi. Bundoran (J. E. Duerden in Irish ISTaturalist, v., 1896). 



Distrihition. — Sweden, British Isles. W.Erance. Mediterranean. 



