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THE VOYAGE OF H.M.S. CHALLENGER. 



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Table of Species of Ophiothrix — continued. 



Four to six arm spines. Very few .lender spines on disk. A I Mofhrh . SWl , 

 purple stripe along upper and lower sides ot arm, . . ) 



Nine to eleven arm spines. Disk set with needle-like spines 1 



and minute stumps. Tentacle scale running along outer V Ophiothrix viridialbu. 

 edge of arm plate. A green stripe along upper arm, . 1 



Four to five arm spines. Stout articulated spines on disk, \ 



with some very short. A purple line running along upper V Ophiothrix purpurea. 



arm. Disk lined with purple and yellowish, . . I 



Four to five arm spines. Long hair-like spines on disk and \ 



radial shields. A white line along upper arm with a > Ophiothrix comata. 

 purple one on either side, . . . . ) 



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Of uncertain 

 place. 



Large (disk 22 mm.). Disk and radial shields set with 1 n , . ,, . .„ 



minute stumps, wide hrown stripe along upper arm, . ) ± 



Numerous trifid, slender stumps on disk ; among them a few | 



slender spines. Six slender, strongly echinate arm spines. A - Ophiothrix elegans. 

 dark line along upper arm, . . . . . ) 



Upper disk densely beset with hair-like spines. Eight needle-like } 



arm spines, echinate only at the tip. A radiating black line Qphiothrit 

 in each brachial space, . . . . .1 



ix eapensis. 



Upper disk densely beset with rather coarse spines. Seven to \ 



eight somewhat stout, strongly echinate arm spines. (Belongs > Ophiothrix pall lit a. 

 near Ophiothrix angulata ?), . . . . .) 



Upper disk beset with coarse, sharp, echinate spines. Eadial \ 



shields large. Ten moderately stout very echinate arm spines. j- Ophiothrix aristulata. 

 Colour pinkish, . . . . . . ) 



( Similar to Ophiothrix hirsuta, but with a glossy disk, . Ophiothrix planalata. 



[ Ophiothrix eoerul a. 



Ophiothrix liitJceni, Wyv. Thomson, Depths of Sea, p. 100, 1872. 



Station 75.— July 2, 1873 ; lat. 38° 37' N., long. 28° 30' W. ; 450 fathoms (young) ; 



sand. 



Ophiothrix triglochis, Mull. & Tr., Syst. Ast., p. 114, 1842; Ltk., Addit, ad Hist., 

 part 3, p. 59. 



Simon's Bay ; 5 to 1 8 fathoms. 



Ophiothrix ccespitosa, Lyra. (PI. XXVI. figs. 12-14). 



Ophiothrix ccespitosa, Lym., BulL Mus. Coinp. Zool 

 417-420, 1879. 



Nine short, stout, much flattened, strongly toothed arm spines. The puffed disk and 



Ophiothrix rmpitoxfj, Lym., Bull. Mus. Coinp. Zool., vol. vi, part 2, p. 53, pi. xv. figs. 

 417-420, 1879. 



