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The Holothurian Fauna of Cook Strait, New Zealand

Abstract

Abstract

The fauna is now known to comprise 13 genera, of which one is new, and 15 species. Heteromolpadia n.g., type species Ankyroderma marenzelleri Theel, has tri-radiate anchor-plates and spired tables, but lacks rosettes of racquet-shaped plates. New records are Neocucumella bicolumnata (Dendy and Hindle), Stolus huttoni (Dendy), Heteromolpadia marenzelleri (Theel), and Molpadia violacea (Studer). A second new genus is proposed for the Australian species currently known as Heterothyone semperi (Bell) and the Arabian Sea species Heterothyone pigra (Koehler and Vaney).

The 12 species from the shelf have essentially a restricted distribution, although four are also known from Australia. The three deep water species are more widely distributed.