Fossarina petterdi

Fossarina petterdi
Drawing with two views of a shell of Fossarina petterdi
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Vetigastropoda
Superfamily: Trochoidea (superfamily)
Family: Trochidae
Genus: Fossarina
Species: F. petterdi
Binomial name
Fossarina petterdi
Crosse, H., 1870
Synonyms
  • Fossarina simpsoni Tenison-Woods, 1876
  • Minos petterdi Hutton, F.W. 1884

Fossarina petterdi is a species of very small sea snail, a marine gastropod mollusc or micromollusk in the family Trochidae, the top snails.[1]

Description

The shell grows to a length of 4 mm. The shell is narrowly umbilicated, faintly spirally striate, with hardly visible longitudinal striae. It is dark purplish black, with a few irregular white markings. The three whorls are convex. The body whorl is large and rounded. The umbilical region is white. The interior is greenish black, showing the external white markings. The thin, horny operculum is multispiral. [2]

Distribution

This marine species is endemic to Australia and occurs off South Australia, Tasmania and Victoria

References

External links

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