Incisura lytteltonensis

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Incisura lytteltonensis
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Prosobranchia
Order: Archaeogastropoda
Superfamily: Fissurelloidea
Family: Fissurellidae
Genus: Incisura
Species: I. lytteltonensis
Binomial name
Incisura lytteltonensis
(E. A. Smith, 1894)
Synonyms

Scissurella lytteltonensis E. A. Smith, 1894

Incisura lytteltonensis is a species of keyhole limpet, a marine gastropod mollusc in the family Fissurellidae.

Contents

[edit] Distribution

This species is endemic to New Zealand, including The Snares and the Chatham Islands.

[edit] Habitat

This keyhole limpet is found on seaweeds.

[edit] Shell description

The shell is minute, thin, subauriform, smooth and white. The protoconch is small, microscopically delicately radiately ribbed, and only one large, rapidly expanded post-nuclear whorl. The aperture is very large, the outer lip thin and sharp, the inner lip broadly spreading. The slit is very short, situated well above the periphery, and with an even shorter, tapered furrow, leading into it externally, but otherwise there is no fasciole. An operculum is absent.

The shell height is up to 1 mm, and length 1.3 mm.

[edit] References