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Molluscs of Tasmania

Arcidae – Arcinae: Acar squamosa (Lamarck, 1819) (‘scaly ark-shell’)

Synonym(s): squamosa Lamarck, 1819 laminata Angas, 1865.

Typical shell-length 38 mm. Lacks persistent periostracum. Lives subtidally and offshore in crevices amongst rocks and seaweed. Native. Endemic to southeastern and southwestern Australia (NSW, TAS, VIC, SA and WA). In Tasmanian waters, this is a widespread species; common in the N, where the largest shells are found, but rare to the S.


Class: Bivalvia
Subclass: Pteriomorphia
Order: Arcoida
Superfamily: Arcoidea
Family: Arcidae
Subfamily: Anadarinae
Genus: Acar

Localities for Acar squamosa

Beechford: foreshore
Bicheno: Diamond Island
Bicheno: Redbill Beach
Bicheno: Waubs Beach
Binalong Bay: Jeanneret Beach
Blackmans Bay
Bridport (unlocalised)
Burnie: Blythe Heads & estuary
Burnie: Sulphur Creek
Burnie (unlocalised)
Cape Portland (unlocalised)
Carlton: Park Beach
Chain of Lagoons: Piccaninny Point
Clarke Island: Black Point
Clarke Island: Maclaines Bay
Denison Beach: Porch Rocks
Devonport: Coles Beach
Devonport: Paradise Cove (unlocalised)
Eaglehawk Neck: eastern side
East Devonport: Pardoe Beach
East Devonport: Pardoe Point
East Ulverstone
Flinders Island: E coast (unlocalised)
Flinders Island: Foochow Inlet
Flinders Island: Fotheringate Bay
Flinders Island: Fotheringate Beach: southern end
Flinders Island: Leeka: foreshore towards Twelve Hour Point
Flinders Island: Logan Lagoon
Flinders Island: Northeast River: mouth
Flinders Island: Palana Beach
Flinders Island: Tanners Bay
Flinders Island: Tanners Bay: Pine Scrub
Flinders Island: The Dock
Flinders Island: Trousers Point
Flinders Island (unlocalised)
Georges Bay: Blanche Point
Goat Island: foreshore of island and nearby mainland
Greens Beach: main beach
Hawley Beach
Herbies Landing
Huon Island
King Island: Colliers Beach
King Island: Fitzmaurice Bay
King Island: Little Porky Beach
King Island: Naracoopa: foreshore
King Island: Pass River Bay
King Island: Seal Point
Little Musselroe Bay: Tree Point area
Low Head: Bellbuoy Beach
Low Head (unlocalised)
Maria Island: Howells Point & Painted Cliffs
Maria Island: Riedlé Bay: McRaes Isthmus
Maria Island: Trigonia Corner
Marrawah: Green Point Beach
Narawntapu: Bakers Point & Springlawn Beach
Narawntapu: Griffiths Point
Norfolk Bay
North coast of Tasmania (unlocalised)
Nubeena: Roaring Beach
Outer Sister Island
Pipers Head
Pirates Bay: Fossil Island
Pirates Bay (unlocalised)
Port Arthur: Denmans Cove
Port Davey: Whalers Cove
Port Sorell: beach
Rocky Cape: Castle Rock Bay
Seymour Beach: northern end
Stanley: East Inlet
Stanley: Godfreys Beach
Stanley: Tatlows Beach
Stanley (unlocalised)
Tamar River: Bell Bay: Sawyers Point
Tamar River: Kelso: foreshore
Taroona: Alum Cliffs
Taroona Beach
Taroona: Dixons Beach
Tasmania (unlocalised)
The Gardens: beach
The Gardens: Coffeys Gulch
The Gardens: Cosy Corner
The Gardens: Swimcart Beach
Tinderbox Beach
Ulverstone (unlocalised)

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