Banded Periwinkle

Austrolittorina unifasciata

''Austrolittorina unifasciata'', common name the banded periwinkle, is a species of sea snail, a marine gastropod mollusk in the family Littorinidae, the winkles or periwinkles.
BluePeriwinkle (Austrolittarina unifasciata) A clump of small grey-blue marine snails huddled in a nook in a rock pool. The smooth snail shells were about 10 mm long with at least 3 whorls and a brown apex.
Spotted in a rockpool along the high intertidal zone - Westernport Bay. Australia,Austrolittorina unifasciata,Fall,Geotagged

Appearance

The shell size varies between 10 mm and 25 mm

Distribution

This species is the only one of its genus found in Australia. It is distributed in the Coral Sea off Queensland, Australia and in the Indian Ocean off Western Australia. This common periwinkle also lives on the rocky shore of New Zealand. It is also commonly found in South Pacific Islands such as Norfolk Island.

Habitat

This species of periwinkle lives in the splash zone and high intertidal zone, where it is found in clusters of individuals. The banded periwinkle grazes on lichen and algae. This small snail is eaten by crabs and birds.

References:

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Taxonomy
KingdomAnimalia
DivisionMollusca
ClassGastropoda
OrderLittorinimorpha
FamilyLittorinidae
GenusAustrolittorina
SpeciesA. unifasciata
Photographed in
Australia