Sinezona lyallensis

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Sinezona lyallensis
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Prosobranchia
Order: Archaeogastropoda
Superfamily: Pleurotomariacea
Family: Scissurellidae
Genus: Sinezona
Species: S. lyallensis
Binomial name
Sinezona lyallensis
(Finlay, 1927)
Synonyms

Schismope atkinsoni Suter, 1913
Schismope lyallensis Finlay, 1927

Sinezona lyallensis is a species of minute sea snail, a marine gastropod mollusc in the family Scissurellidae.

Contents

[edit] Distribution

This species is endemic to New Zealand.

[edit] Habitat

This scissurellid is found at depths of from shallow water to 240 m.

[edit] Shell description

The shell is larger than either Sinezona iota or Sinezona laqueus, with a depressed spire, wide shoulder area, and a more open umbilicus, but differing mostly in the absence of radial ribbing, the base below the subperipheral constriction being sculptured with seven or eight low spiral keels.

The shell height is up to 1.5 mm, and width 1.8 mm.

[edit] References