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New Zealand Journal of Marine and Freshwater Research abstractsOcnus sacculus new species (Echinodermata: Holothuroidea), a brood-protecting holothurian from southeastern New ZealandDAVID L. PAWSONDepartment of Invertebrate Zoology Smithsonian Institution Washington, D.C. 20560 United States of AmericaAbstract A new species in the dendrochirotid holothurian genus Ocnus sensu lato is described from approximately 600 m depth in Taiaroa Canyon, off Otago, New Zealand. Ocnus sacculus new species has single rows of tubefeet only in the 3 ventral radii. Body-wall ossicles consist of cups, knobbed 4-holed buttons, and multi-layered plates averaging 0.7 mm in diameter. Three brood pouches lie anteriorly on the inner surface of the body wall in 3 dorsal interradii; the mid-dorsal pouch is largest. The pouches apparently have no permanent contact with the exterior; presumably birth takes place by rupture of the body wall.Keywords new taxa; Holothuroidea; Ocnus sacculus; Otago; morphology; taxonomy; brooding; reproduction; reproductive structures New Zealand Journal of Marine and Freshwater Research, 1983, Vol. 17 : 227-230 0028-8330/83/1703-0227$2.50/0 © Crown copyright 1983 Received 3 December 1982 PDF file of entire paper: medium quality (765K); (scanned from paper original: notes about this process) This year's abstracts | Journal home page | All abstracts | Publishing home page |