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Ophiacantha Valenciennesi Lyman. 



veterna Kœhler. 

 Ophiolimna opercularis Kœhler. 

 Ophiomitrella cordifera (Kœhler). 

 Ophioplinthaca chelys (Lyman). 

 — occlusa Kœhler. 



Ophiopora Bartletti (Lyman). 

 Ophiotrema Alberti Kœhler. 

 Ophioscolex glacialis Mùller et Troschel. 

 Astrogeron supinus (Lyman). 



V. — OPHIOTHRICIDEES 



Ophiothrix fragilis Abbildgaard. 



Lùtkeni Wy ville Thomson. 

 Ophiothricoïdes Lymani van Beneden. 



VI. — OPHIOMYXIDEES 



Ophiomyxa pentagona (Lamarck). 

 Ophiodera serpentina (Lyman). 

 Ophioplus armatus Kœhler. 



VIL — ASTROPHYTIDEES 



Astronyx sp. ? 



Astrochema inomatum Kœhler. 

 Ophiocreas œdipus Lyman. 

 Gorgonocephalus Agassi{i (Stimpson). 



— eucnemis (Mùller et Troschel). 



— Lincki Mùller et Troschel. 



