Dinamani, Beu: Description of a new species o . . .

New Zealand Journal of Marine and Freshwater Research abstracts

Description of a new species of incubatory oyster from northern New Zealand, with notes on its ecology and reproduction

P. DINAMANI

Fisheries Research Division Ministry of Agriculture and Fisheries P.O. Box 19062
Wellington, New Zealand

with an appendix by

A. G. BEU

New Zealand Geological Survey
Department of Scientific and Industrial Research
P.O. Box 30368
Lower Hutt, New Zealamd

Abstract Ostrea aupouria n.sp., possibly the only representative of its genus in New Zealand, is described. The oyster is small, largely adherent to the substrate, and occurs in the lower tidal zone of northern New Zealand. It is incubatory and has an extensive breeding period and a characteristic planktonic larva. Re-examination of the holotype of O. fococarens Finlay, 1928, and similarly identified specimens in Suter's collection, has revealed significant differences from the new oyster and true relationships with Tiostrea lutaria (Hutton, 1873).

Keywords Mollusca; Ostreidae; Ostrea aupouria new species; ecology; reproduction; larval settlement.

New Zealand Journal of Marine and Freshwater Research, 1981, Vol. 15 : 109-119 Received 15 August 1980

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