254 Proceedi.ng'i of tie RoijuJ Irlili Academy. 



OpMura albida, rortes. 



, i., ii.; iii., ir., v., ri. 



Generally'distributed^and coTnTnon. 

 Distribution. — Xorth European seas. Alediterraneaii. 



OpMnra sarsi. Liitken. 



... ? IT., , . 



?iv. "Porcupiae/' Exp. 1869, 75 fni^;., a young speciinen Hoyle 

 '84). 

 Distn'biction. — Both sides of I?^orth Atlantic. 



[Ophiura signata (Verrill).] 

 . . . ?iv., . . 



?iv. E. I. A. Exp. 1888, 345 fms. ;Sladen '91, but rather doubtful of 

 the deterraiiiation\ 

 Distribution. — X. E. America. Faroe Channel. ?.S. ^. Ireland. 



OpMura affinis, Liithen. 



. . . iv., . . 



iv. E. LA. Exp. 1885, Bereharen, mouth of Bantry Bay, 40 fms., 

 and off Great Skellig, 110-120 fms. (Haddon '86 b) : E. LA. 

 Exp.;i886, mouth of Bantry Bay, 37^ fms. ^Haddon '88). 

 Distribution. — Both^sides of Xorth Atlantic. Mediterranean. 



[OpMocten sericenm Torbes).] 



. . . iv., . . 



iv. H.M. S.^" Eesearch " 1889, 400 fms. ',BeU '90^. 



Distrihdion. — Eastern side of X. Atlantic. Arctic seas. Off 

 Massachusetts (Lyman^. ? Marion I. " Challenger." 



F e niily — AsipmrEiD je . 



rOphiomnsium lymani, Vyr. Thomson.] 



. . . iv., . . 



iv. " Porcupine" Exp. Ib69, 180 fms. (Thomson '73). 



Distributi&n. — Atlantic and Pacific Oceans. Deep water. 



