Sinezona lyallensis

Taxobox
name = "Sinezona lyallensis"
status =
regnum = Animalia
phylum = Mollusca
classis = Gastropoda
subclassis = Prosobranchia
ordo = Archaeogastropoda
superfamilia = Pleurotomariacea
familia = Scissurellidae
genus = "Sinezona"
species = "S. lyallensis"
binomial = "Sinezona lyallensis"
binomial_authority = (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.

Distribution

This species is endemic to New Zealand.

Habitat

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

hell 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.

References

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