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Molluscs of Tasmania

Cardiidae – Protocardiinae: Pratulum thetidis (Hedley, 1902) (‘thetis cockle’)

Synonym(s): thetidis Hedley, 1902.
Typical shell-length 15 mm. Extent of red radial rays varies; background colour may be white, yellow or pink. Lives subtidally and offshore in sand in moderately exposed environments. Native. Endemic to southeastern and southwestern Australia (QLD, NSW, TAS, VIC, SA and WA). In Tasmanian waters, this is a widespread species, but seldom beached.


Class: Bivalvia
Subclass: Heterodonta
Order: Veneroida
Superfamily: Cardioidea
Family: Cardiidae
Subfamily: Protocardiinae
Genus: Pratulum

Localities for Pratulum thetidis

Bangor: Lagoon Bay
Bangor: Two Mile Beach
Bicheno: Courland Bay
Bicheno: Redbill Beach
Bicheno: Waubs Beach
Binalong Bay: beach
Blackmans Bay
Black River Beach
Black River Beach: northern end
Black River Beach: southern end
Boltons Beach
Bridport: beach
Bruny Island: Neck Beach
Carlton: Park Beach
Coles Bay: Honeymoon Bay
Croppies Point
D’Entrecasteaux Channel (unlocalised)
Derwent Estuary: ACMA Asterias survey Stn 23
Derwent Estuary: ACMA Asterias survey Stn 24
Derwent Estuary: ACMA Asterias survey Stn 26
Derwent Estuary: ACMA Asterias survey Stn 31
Derwent Estuary (unlocalised)
Devonport: Paradise Cove (unlocalised)
East Devonport: Pardoe Beach
East Ulverstone
Electrona: Peggys Beach
Flinders Island: E coast (unlocalised)
Flinders Island: Fotheringate Beach: southern end
Franklin Sound area
Georges Bay: Blanche Point
Greens Beach: main beach
Hawley Beach
Hawley Beach: foreshore towards Point Sorell
Hobart: Sullivans Cove area
Hobart (unlocalised)
Hogan Island
King Island: Lavinia Beach: beach nr Lake Martha Lavinia
King Island: Naracoopa: foreshore
King Island: Yellow Rock Beach
Kingston Beach
Lauderdale: Roches Beach
Leith: foreshore
Marion Bay: Bream Creek foreshore
Marion Bay (unlocalised)
Marrawah: Green Point Beach
Mayfield Beach to Mayfield Point
Narawntapu: Griffiths Point
North Bruny Island: Roberts Point
Orford: Spring Beach
Orford (unlocalised)
Peggs Beach (unlocalised)
Peggs Beach: western end
Pirates Bay: near landing
Rocky Cape: Anniversary Bay
Rocky Cape: foreshore N of Picnic Beach
Rocky Cape: Forwards Beach
Schouten Island (unlocalised)
Seymour Beach: northern end
Shearwater: Freers Beach
Snug Beach
South Bruny Island: Butlers Beach
South Bruny Island: Simpsons Bay
South coast of Tasmania (unlocalised)
Stanley: Anthony Beach
Stanley: East Inlet
Stanley: foreshore
Stanley: Godfreys Beach
Stanley: Halfmoon Bay
Stanley: Tatlows Beach
Stanley (unlocalised)
Tamar River: Kelso: foreshore
Taroona: Alum Cliffs
Taroona Beach
Taroona: Dixons Beach
Tasmania (unlocalised)
The Gardens: Cosy Corner
The Gardens: Swimcart Beach
The Gardens: Taylors Beach
Three Hummock Island: Three Gullies Bay
Tomahawk Beach
Triabunna: Plain Place Beach
Verona Sands
Waterhouse Beach

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