Margarella antipoda rosea

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Margarella antipoda rosea
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Prosobranchia
Order: Archaeogastropoda
Superfamily: Trochacea
Family: Trochidae
Genus: Margarella
Species: M. antipoda
Subspecies: M. antipoda rosea
Trinomial name
Margarella antipoda rosea
(Hutton, 1873)
Synonyms

Chrysostoma rosea Hutton, 1873
Photinula decepta Iredale, 1908

Margarella antipoda rosea is a subspecies of marine gastropod mollusc in the family Trochidae, the top shells.

Contents

[edit] Distribution

This top shell is endemic to New Zealand, found in eastern Otago in the South Island and in Stewart Island.

[edit] Habitat

It is found under the holdfasts of giant kelp in the genus Durvillea.

[edit] Shell description

This species is the largest of the Margarella antipoda subspecies, and the most viable in colour, ranging from plain iridescent-white to wholly purplish-black, with others patterned with pink spiral lines, zigzag axial stripes, or general marbling in purplish-grey. The last whorl is expanded, and the umbilicus is narrowly crescentic and callus filled.

The maximum shell height is 13 mm, and width 12 mm.

[edit] References