Anomia trigonopsis

Taxobox
name = "Anomia trigonopsis"
fossil_range = Upper Oligocene to Recent


image_caption =
status =
status_system =
regnum = Animalia
phylum = Mollusca
classis = Bivalvia
ordo = Ostreoida
familia = Anomiidae
genus = "Anomia"
species = "A. trigonopsis"
binomial = "Anomia trigonopsis"
binomial_authority = Hutton, 1877

"Anomia trigonopsis", also known as the New Zealand jingle, is a species of marine bivalve mollusc in the family Anomiidae, the anomiids.

Distribution

This anomiid is endemic to New Zealand, found around the North Island and the northern half of the South Island.

Habitat

This species is common on the underside of stones, and attached to shells and wharf-piles, from low water to depths of about 45 metres.

hell description

The shell is large, approximately oval, the under valve flat, concave, or concave, according to the surface of attachment. An oval hole, near the beak, accommodates the calcareous byssal plug. The upper valve is convex and coarsely radially corrugated.

The shell coloration is either silvery white, or the under valve is bright green with the upper valve yellow or orange.

The shell height is up to 67 mm, width 83 mm, and thickness 13 mm.

References

* Powell A W B, "New Zealand Mollusca", William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1