Sinezona levigata

Sinezona levigata is a species of minute sea snail, a marine gastropod mollusc or micromollusc in the family Scissurellidae, the little slit shells.[1]

Sinezona levigata
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Vetigastropoda
Superfamily:
Scissurelloidea
Family:
Scissurellidae
Genus:
Sinezona
Species:
S. levigata
Binomial name
Sinezona levigata
(Iredale, 1927)
Synonyms[1]
  • Ariella campbelli Bandel, 1998
  • Schismope brevis levigata (Iredale, 1927)
  • Sinezona laevigata Finlay, 1927

Description

This species differs from Sinezona brevis in the degree of sculpture. At first sight it would appear a very different shell, but when closely examining the sculpture, it is seen to be the same. The longitudinal ribs have greatly deteriorated in strength, whilst the spirals have gained. The body whorl descends much more rapidly than in Sinezona brevis, whilst the earlier whorls are smaller. This combination gives an entirely different appearance to the shell, which is further strengthened by the fact that the fasciole is very little longer than the foramen. The thin operculum is horny and multispiral. The colour of the shell is cream. Dead shells are pure white.[2]

Distribution

This marine species occurs off New Zealand.

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References
  1. WoRMS : Sinezona levigata; accessed : 21 October 2010
  2. Suter H. (1913-1915), Manual of new Zealand Mollusca; Wellington, N. Z. :J. Mackay, govt. printer,1913-1915
  • Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
  • Geiger D.L. (2012) Monograph of the little slit shells. Volume 1. Introduction, Scissurellidae. pp. 1-728. Volume 2. Anatomidae, Larocheidae, Depressizonidae, Sutilizonidae, Temnocinclidae. pp. 729–1291. Santa Barbara Museum of Natural History Monographs Number 7
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