Zoroasteridae Sladen 1889

Myxoderma longispinum (syntype from synonym Zoroaster longispinus), oral viewMyxoderma longispinum (syntype from synonym USNM 34384), collected from East of the Galapagos Islands (0 36 00S, 86 46 00W), Ecuador, South Pacific Ocean, by the R. V. Albatross from a depth of 2418 m.

Myxoderma longispinum (syntype from synonym Zoroaster longispinus), aboral viewMyxoderma longispinum (syntype from synonym USNM 34384), collected from East of the Galapagos Islands (0 36 00S, 86 46 00W), Ecuador, South Pacific Ocean, by the R. V. Albatross from a depth of 2418 m.