108 



OPIirtJROIDEA. 



q, r. Blacksod Bay, 3-4 fms., April 24, 

 1891. 

 Blackaod Bay. 

 West coast of Ireland. 

 Belfast Bay. 

 Strangford Lough. 

 Off Liverpool. 

 Pembrokeshire. 

 S. Wales. 

 Plymouth. 

 Weymouth Bay. 

 Weymouth. 



Hastings, April 4, 1881. 

 Dover. 



Firth of Forth. 



Montrose, June 18/26, July 22, Sept. 

 23, 1889. 

 ',/". British. 



R. Irish Acad. 



Dr. Grenfell. 

 P. Dublin Soc. 

 Belfast Nat. Hist. Soc. 

 Belfast Nat. Hist. Soc. 



Mrs. Fenwick. 

 Mrs. Passingham. 



S. 0. Ridley, Esq. 

 Mr. E. Tennent. 

 Prof. E. Forbes. 

 W. Duncan, Esq. 



H. Ball, Esq. 



2. Ophiura albida. 



Ophiura albida, Forbes, Mem. Wern. Soc. viii. (1839) p. 125, pi. iv. 



rigs. 5 & 6 ; id. Brit. Star/. ( 1840) p. 27 ; Thompson, Nat. Hist. Irel. 



iv. (1856) p. 436 ; Liitk. Dansk. Vid. Selsk. Shrift, v. (1859) p. 39, 



pi. i. fig. 2 ; Norm. Ann. 8f May. xv. (1865) p. 113 ; Jarzynsky, 



'Trans. Petersb. Soc. Nat. i. (1870) p. 318. 

 Ophioglypha albida, Lym. III. Cat. M. C. Z. i. (1865) p. 49 ; Heller, 



Zooph. it. JEchin. Adriat. Meer. (1868) p. 58; Ludiv. Mitth. zool. 



Stat. Neap. i. (1879) p. 547; Ilerdman, Proc. Phys. Soc. Ed. v. 



(1880) p. 200 ; Leslie et id. op. cit, vi. (1881) p. 87 ; Caries, Faun. 



Med. (1884) p. 93 ; Hoyle, Proc. Phys. Soc. Ed. viii. (1885) p. 148; 



Bnrrois, Rev. Biol. i. (1888) p. 72 ; Fjelstrup, Zool. Dan. l'iyh. 



(1890) p. 23, pi. ii. fig. 1. 

 Ophiolepis ciliata (pars), M. Tr. Syst. Ast. (1842) p. 91. 

 Ophiolepis stenura, Lorenz, SB. Ah. Wiss. Wiett, xxxix. (1860) 



p. 681. 



Allied to 0. ciliaris, but distinguished by not growing so large, 

 having less numerous and more coarse disk-scales, a smaller number 

 (less than twenty) comb-spines at the insertion of the arms, and no 

 ventral pores owing to the union of the side arm-plates in the 

 ventral middle line, and proportionately stouter arms. Mouth- 

 plate pentagonal, as broad as long. Many of the upper disk-scales 

 are quite large, and the radial shields therefore are by no means 

 conspicuous. The side-spines are short, four or five to a plate. The 

 lower arm-plates are more angulated and less curved along the distal 

 edge than in 0. ciliaris. 



Colour when dried white ; Forbes states that in life the disk and 

 the centre of the arms are pink, with white or orange spots on the 

 disk. 



R = 27 ; 25 ; 21-5. 

 r = 5 ; 4 ; 5. 



Distribution. 

 Mediterranean. 



North Atlantic 

 To 250 fms. 



(Eastern side) ; Arctic Ocean ; 



