Ophiocnida, Lyman. continued. 



48 olivacea, Lyman. 

 Ophiopus, Ljungman. 



49 arcticus, Ljungman. 

 Ophiopsila, Forbes. 



50 aranea, Forbes. 



51 annulosa, M. Sars. 

 Ophiocoma, L. Agassiz. 



52 nigra, Abildgaard. 

 Ophiacantha, Mull, and Trosch. 



53 bidentata, Retz. 



54 setosa, Retz. 



55 spectabilis, G. O. Sars. 



56 abyssicola, G. O. Sars. 



57 anomala, G. O. Sars. 



58 millespina, Verrill. 

 Ophiolebes, Lyman. 



59 claviger, Ljungman. 

 Ophiothrix, Mull, and Trosch. 



60 fragilis, Abildgaard. 



61 pentaphyllum, Pennant. 



62 Lutkeni, Wyv. Thorn. 



63 alopecurus, Mull, and Tros. 



64 echinata, Delle Chiaje. 

 Ophioscolex, Miiller and Troschel. 



65 glacialis, Miill. and Tros. 



66 purpureus, Dub. and Kor. 

 Ophiobyrsa, Lyman. 



67 hystricis, Lyman (an arm only). 

 Ophiomyxa, Miiller and Troschel. 



68 pentagona, Mull, and Tros. 

 Gorgonocephalus, Leach. 



69 Latnarcku, Miill. and Tros. 



70 eucnemis, Miill. and Tros. 



71 Agassizii, Stimpson. 



72 Linckii, Miill. and Tros. 

 Astrochele, Verrill. 



73 Lymani, Verrill. 

 Astronyx, Miiller and Troschel. 



74 Loveni, Miill. and Tros. 



S nb- Class III. Asteroidea. 



Pontaster, Sladen. 



75 tenuispinus, Diib. and Kor. 

 Ditaster, Sladen. 



76 grandis, Verrill. 

 Plutonaster, Sladen. 



77 bifrons, Wyv. Thorn. 



78 Agassizii, Verrill. 



79 subinermis, Philippi. 



Plutonaster, Sladen. continued. 



80 Parelii, Diib. and Kor. 

 Archaster, Miiller and Troschel. 



81 americanus, Verrill. 



82 florae, Verrill. 

 Benthopecten, Verrill. 



83 spinosus, Verrill. 

 Odontaster, Verrill. 



84 hispidus, Verrill. 

 Porcellanaster, Wyville Thomson. 



85 caeruleus, Wyv. Thorn. 

 Ctenodiscus, Miiller and Troschel. 



86 crispatus, Retz. 

 Leptoptychaster, Smith. 



87 arcticus, M. Sars. 

 Astropecten, Linck. 



.88 articulatus, Say. 



89 aurantiacus, Linne. 



90 bispinosus, Otto. 



91 irregularis, Linck. 



92 pentacanthus, Del. Chi. 



93 platyacanthus, Phil. 



94 Jonstoni, Delle Chiaje. 



95 spinulosus, Phil. 



96 acicularis, Norman. 

 Psilaster, Sladen. 



97 andromeda, Miill. and Tros. 

 Bathy blaster, Dan. and Koren. 



98 pallidus, Dan. and Kor. 

 Luidia, Forbes. 



99 ciliaris, Phil. 



100 Sarsii, Diib. and Kor. 



1 01 clathrata, Say. 



1 02 elegans, Perrier. 

 Pentagonaster, Linck. 



10 3 granularis, Retz. 



104 placenta, Miill. and Tros. 

 Nymphaster, Sladen. 



105 subspinosus, Perrier. 



protentus, Sladen. 

 Anthenia, Gray. 



106 nidrosiensis, Storm. 

 Goniaster, Agassiz. 



107 phrygianus, Parelius. 

 Tylaster, Dan. and Koren. 



108 Willei, Dan. and Kor. 

 Porania, Gray. 



109 pulvillus, O. F. Miill. 

 no grandis, Verrill. 



