Nichols — A Lint of I r kit, Echinoderms. 257 



Ophiopholis aculeata (Linne). {Ophiocoma lellis Forbes B. S.) 

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



i.-v. Generally distribiited, but does not seem to have been recorded 

 from province vi. 

 Distribiitioti. — Both sides of N. Atlantic from Arctic Ocean to 

 British Isles and New England. 



Family — OpHiocoMiciE. 



Ophiocoma nigra (Abilg.). {0. (/ramilata'FoY'hes'B.^.) 



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



i. Belfast (Kinahan '59) : coast of Down (Thompson '56) :. 



Strangford Lough (Thompson, f. Forbes '41; Dickie '58; 



Bell '92 b). 

 ii. Dublin. Bay, common : Greystones (^Mackintosh '84). 

 iv. Berehaven (Dublin Mus.) : 11. 1. A. Exp. 1885, Berehaven, 5-12: 



fms., common (Haddon '8613): R. I. A. Exp. 1886, 70-80 



fms. (Haddon '88) : Valentia (Kinahan '59 ; Beaumont 1900).. 

 V. R. D. S. Fish. Survey 1890-91, Kilkieran Bay, 4-8 fms., and 



Birterbuy Bay, 7-13 fms. (Holt '92). 

 vi. R. D. S. Fish. Sui'vey 1891, off MalinHead, 22-23 fms. (Beir92). 

 Distrihition. — K"orth European seas. 



OpMopsila annulosa (Sars). 



. . . iv., v., . 



iv. Kenmare Bay (More, f. IS'orman in Hoyle '85). 

 V. Birterbuy Bay, a single fragment of a ray (Brady & RobertsoiL 

 '69). 

 Listrihution. — W. Ireland. jMediteiTanean. 



Family — OpHioxnKiciDiE. 



OpMothrix fragilis (Abilg.). {Ojohiocoma rosida^-oA 0. minuta 

 Forbes B. S.) 



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



Generally distributed all round the coast and veiy common, often 

 on oyster- and other shell-banks. 



bistrihution, — Finmark to Mediterranean. Azores " Hirondelle."^ 



