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Molluscs of Tasmania

Janthinidae: Janthina janthina (Linnaeus, 1758) (‘common violet-snail’)

Synonym(s): janthina Linnaeus, 1758 fragilis Lamarck, 1801 contorta Carpenter, 1857 striolata Carpenter, 1857 carpenteri Mörch, 1860.
Typical shell-length 30 mm. Low-spired, with relatively large body-whorl. Lives afloat on ocean surface by means of a bubble-raft. Native. Occurs all around Australia (QLD, NSW, TAS, VIC, SA, WA and NT); also widespread elsewhere in warm seas. In Tasmanian waters, this species is commonly beached around Flinders Island and on the E coast; more seldom beached elsewhere.


Class: Gastropoda
Subclass: Caenogastropoda – Sorbeoconcha
Order: Hypsogastropoda – Littorinimorpha
Superfamily: Epitonioidea
Family: Janthinidae
Genus: Janthina

Localities for Janthina janthina

Bangor: Lagoon Bay
Bangor: Two Mile Beach
Beaumaris Beach
Beerbarrel Beach
Bicheno: Diamond Island
Bicheno: Redbill Beach
Binalong Bay: gulches
Boltons Beach
Bridport: Adams Beach
Chain of Lagoons: Four Mile Creek: beach
Chain of Lagoons: Piccaninny Point
Denison Beach: rocks at southern end
Denison Beach (unlocalised)
Dianas Beach (unlocalised)
Eaglehawk Neck: eastern side
East Devonport: Moorland Beach
Eddystone Point: Picnic Corner
Eddystone Point (unlocalised)
Falmouth: Mariposa Beach
Flinders Island: Badger Corner
Flinders Island: Foochow Beach
Flinders Island: Fotheringate Beach: southern end
Flinders Island: Lady Barron: Watering Beach
Flinders Island: Marshall Bay
Flinders Island: Northeast River: mouth
Flinders Island: Patriarch Beach
Flinders Island: Swimming Beach
Flinders Island (unlocalised)
Freycinet Peninsula: Hazards Beach
Freycinet Peninsula (unlocalised)
Freycinet Peninsula: Wineglass Bay
Friendly Beaches
Hawley Beach: foreshore towards Point Sorell
King Island: Fitzmaurice Bay
Maria Island: Darlington Bay
Maria Island: Trigonia Corner
Marion Bay: Bream Creek foreshore
Marion Bay (unlocalised)
Mayfield Beach to Mayfield Point
Nubeena: Roaring Beach
Okehampton Bay (unlocalised)
Pirates Bay (unlocalised)
Port Arthur: Crescent Bay
Port Arthur: Safety Cove
Port Davey: Spain Bay
Scamander: Wrinklers Beach
Schouten Island: Moreys Bay
Schouten Island: Sandspit Point
South Bruny Island: Adventure Bay: Grass Point
South Croppies Point
South East coast of Tasmania (unlocalised)
Stanley: Tatlows Beach
Swansea: Jubilee Beach
Tasmania (unlocalised)
The Gardens: beach
The Gardens: Cosy Corner
The Gardens: Swimcart Beach
The Gardens: Taylors Beach
Waterhouse Beach
Waterhouse Point

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