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Deep-Sea Echinoderms of New Zealand


This family is here recorded for the first time from New Zealand, though it is already known in Australia, and a deep-water species was taken by the Challenger north of the Kermadec Islands. The family may briefly be diagnosed as follows:

Disc relatively large, bordered by marginal paxillae and carrying more or less prominent paxillae on the abactinal surface. Actinal interradial plates present. Adambulacral armature in two linear series at right angles to each other.

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Plate 3

Plate 3

A, C, Pseudechinus flemingi sp. now; A, aboral plates of holotype, 52 mm h.d.; C, ambital plates of immature syntype, 26 mm h.d. B, Goniocidaris (Aspidocidaris) parasol sp. nov.; ambulacral plates. D, F, H, Brisingenes delli sp. nov.; D, oral and adjoining adambulacral plates; F, adambulacral and marginal armature, genital region of arm, distal border uppermost; H, costal plates. E, Zoroaster spinulosus Fisher, ambulacral, adambulacral and adjoining actinolateral series, showing armature and giant straight pedicellaria. G, K, Pseudarchaster garricki sp. nov.; G, abactinal paxillae; K, inferomarginal 5, adambulacral 7 and intermediate plates. I, J, Pseudarchaster abernethyi sp. nov.; I, abactinal paxillae; J, inferomarginal 5, adambulacral 11, and intermediate plates.