^60 Proceedings of the Royal Irish Acade/n/j. 



Family — Echinidje. 



Echinus acutus, Lamarck. {U. fleminffii Tovhes^. 8.) 



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



iii. Oflf Youghal (in very deep water, Ball, f. Porbes '41 ; Humphreys 



'45) : " Porcupine " Exp., south of Ireland, 100 fms. (Agassiz 



'72'-74). 

 iv. "Elying Fox " Exp. 1889, 55 fms., 110 fms., and 500 fms. (Bell 



'89) : H. M. S. " Kesearch " 1889, 70 fms. (Bell '90) : Dingle 



Bay, 30 fms. (Dublin Mus.). 

 V. E. D. S. Fish. Survey 1890, Gal way Bay, and off Achill Head, 



126 fms. (Bell '92). 

 Distrilution. — Both sides of Atlantic. Mediterranean. Kermadec 

 I. " Challenger." 



Echinus norvegicus. Dub. & Kor. 

 . . . iv., . . 



iv. "Porcupine" Exp. 1869, off Valentia, 808 fms. (Hoyle '91): 



"Porcupine" Exp. 1869, 80-110 fms. (Bell '92b): E. I. A. 



Exp. 1888. 345 fms. and 750 fms. (Sladen '91): H. M. S. 



"Eesearch" 1889, 400 fms. (Bell '90). Var. rarispina, Sars. 



Off Valentia, 110 fms. (Thomson '73; Is^orman Coll., f. Hoyle 



'91). 

 Distribution. — Both sides of N. Atlantic. Off Japan and off Pata- 

 gonia " Challenger." 



Echinus microstoma, Wyv. Thomson. 



. . . iv., [v.] , [vi.] 



iv. " Porcupine " Exp. 1869, off Valentia (Norman Coll., f . Hoyle '91) : 

 E. 1. A. Exp. 1885, 80-120 fms., common (Haddon '86b) : 

 E. I. A. Exp. 1886, 93-214 fms. (Haddon '88) : E. I. A. 

 Exp. 1888, 345 fms. (Sladen '91): "Flying Fox" Exp. 

 1889, 110-500 fms. (Bell '92b). 



[v.] " Porcupine" Exp. 1869, off west coast of Ireland, 150-400 fms., 

 very abundant (Thomson '74). 



[vi.] E. D. S. Fish. Survey 1891, off Black Eock, Blacksod Bay, 250 

 fms. and 500 fms. (Bell '92, '92b). 

 Bistrihution. — West coasts of Scotland and Ireland. Bay of 



Biscay. 



