Onchidella obscura

Taxobox
name = "Onchidella obscura"
status =
regnum = Animalia
phylum = Mollusca
classis = Gastropoda
ordo = Systellommatophora
familia = Onchidiidae
genus = "Onchidella"
species = "O. obscura"
binomial = "Onchidella obscura"
binomial_authority = Plate, 1893

"Onchidella obscura" is a species of small, air-breathing sea slug, a shell-less marine pulmonate gastropod mollusc in the family Onchidiidae.

For more information on this unusual family of air-breathing sea slugs, see Onchidiidae.

Distribution

This species is endemic to Cook Strait, including D'Urville Island, in New Zealand.

Habitat

This sea slug is found in the mid intertidal zone.

Description

This species, along with all others in the family, does not have a shell, and has the general appearance of a limpet. Its dorsal surface is smooth.

The external coloration is black with small white dots.

The length is up to 15 mm, and width up to 11 mm.

References

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