Ophiacanthida

species of echinoderm

Ophiocomidae are a family of brittle stars of the suborder Ophiurina.

genus of echinoderms

Ophiodermatidae are a family of brittle stars in the order Ophiacanthida.

Ophiarachnella is a genus of echinoderms belonging to the family Ophiodermatidae.

Ophiomyxidae is a family of echinoderms belonging to the order Ophiacanthida.

thumb | right | alt=Ophiacantha polaris/Ophiolimna antarctica (Lyman, 1879) | Ophiacantha polaris/Ophiolimna antarctica (Lyman, 1879) Ophiolimna is a genus of brittle stars.

Ophiacanthidae is a family of brittle stars. Axel Vilhelm Ljungman circumscribed this taxon in 1867; he initially named the subfamily Ophiacanthinae within the family Amphiuridae. Gordon L. J. Paterson promoted its rank to family in 1985.

Ophiocomina is a genus of brittle stars belonging to the family Ophiotomidae. They are distributed worldwide.

Ophiacanthida is an order of echinoderms belonging to the class Ophiuroidea.

Ophiopsammus is a genus of brittle stars within the family Ophiodermatidae.

species of echinoderm

Ophiohamus is a genus of brittle stars in the family Ophiacanthidae from New Caledonia. Timothy D. O'Hara and Sabine Stöhr circumscribed and named the genus in 2006; they described the type species Ophiohamus nanus in the same work. A second species, Ophiohamus georgemartini, was described by O'Hara and Caroline Harding in 2015. , those are the only two species recognized in this genus.