Rangitotoa insularis

Taxobox
name = "Rangitotoa insularis"
status =
regnum = Animalia
phylum = Mollusca
classis = Gastropoda
subclassis = Orthogastropoda
superordo = Heterobranchia
ordo = Pulmonata
subordo = Actophila
superfamilia = Ellobioidea
familia = Ellobiidae
subfamilia = Carychiinae
genus = "Rangitotoa"
species = "R. insularis"
binomial = "Rangitotoa insularis"
binomial_authority = Powell, 1933

"Rangitotoa insularis" is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Ellobiidae.

Distribution

This species is endemic to Rangitoto Island in the Hauraki Gulf in the North Island of New Zealand.

Habitat

This snail lives in the high tidal zone.

Description

The shell is minute, white and frail, and having two columellar plaits situated almost at the basal extremity.

The radula consists of a central tooth, 16 laterals and 12 marginals, the latter comb-like, bearing from four to six cusps.

Height is up to 3.7 mm, and the width is up to 1.9 mm.

References

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