Panopea zelandica

Panopea zelandica
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Subclass:	Heterodonta
Order:	Adapedonta
Family:	Hiatellidae
Genus:	Panopea
Species:	P. zelandica
Binomial name
	Panopea zelandica; Quoy and Gaimard, 1835
Synonyms
	Panopaea zelandica Quoy and Gaimard, 1835; Panopaea solandri Gray, 1843

Panopea zelandica, commonly known as the deepwater clam or New Zealand geoduck, is a large species of marine bivalve mollusc in the Panopea (geoduck) genus of the family Hiatellidae.[1] It is also sometimes called a king clam, or a gaper – in reference to the shell not being closed at either end.

It is found around the North, South and Stewart islands and occurs mainly in shallow waters (5–25 metres) in sand and mud off sandy ocean beaches.[2] Another geoduck species, Panopea smithae, is found in deeper New Zealand waters.

Like other geoducks, P. zelandica burrows downwards in the mud and extends a siphon 30-45 centimetres up to the surface of the substrate. The siphon contains two tubes. Water is sucked down one tube, filtered for food and then expelled through the other.

Inside view of Panopea zelandica shell

End-on view of Panopea zelandica's gape

References

Powell, Arthur (1979). New Zealand Mollusca. William Collins Publishers Ltd. ISBN 0-00-216906-1.
Deepwater (King) Clam fishery summary Archived 2008-10-14 at the Wayback Machine - New Zealand Ministry of Fisheries.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.

[1] Powell, Arthur (1979). New Zealand Mollusca. William Collins Publishers Ltd. ISBN 0-00-216906-1.

[2] Deepwater (King) Clam fishery summary Archived 2008-10-14 at the Wayback Machine - New Zealand Ministry of Fisheries.