Calliostoma pellucidum pellucidum

Calliostoma pellucidum pellucidum

Taxobox
name = "Calliostoma pellucidum pellucidum"


image_caption =
regnum = Animalia
phylum = Mollusca
classis = Gastropoda
ordo = Archaeogastropoda
familia = Calliostomatidae
genus = "Calliostoma"
species = "C. pellucidum"
subspecies = "C. pellucidum pellucidum"
trinomial = "Calliostoma pellucidum pellucidum"
trinomial_authority = (Valenciennes, 1846)
synonyms = "Trochus pellucidus" Valenciennes, 1846

"Calliostoma pellucidum pellucidum" is a subspecies of medium-sized sea snail, a marine gastropod mollusc. Some authors have placed this genus in the family Calliostomatidae, other malacologists have left it in the family Trochidae.

Distribution

This subspecies is endemic to the North Island of New Zealand.

hell description

The shell is large and tall-spired, with concave upper spire outlines, but inflated later whorls, the last rounded to slightly angled at the periphery. Sculpture is of numerous sharply raised, closely beaded spiral cords, eight to ten on the penultimate whorl.

The external shell coloration is pinky-buff, broadly axially streaked in reddish-brown, except on the base - all cords are dotted with brown and white. The aperture is faintly iridescent.

The shell height is up to 37 mm, and the width is up to 37 mm.

References

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


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