Pectinidae – Chlamydinae: Semipallium aktinos (Petterd, 1886) (‘shagreened scallop’)
Synonym(s): aktinos Petterd, 1886 bednalli Tate, 1887.
Typical shell-length 30 mm. Shell red, orange or yellow. Lives subtidally on sand. Native. Endemic to southeastern and southwestern Australia (QLD, NSW, TAS, VIC, SA and WA). In Tasmanian waters, this is an uncommon species, confined to the N coast and Bass Strait Islands.
Classification
Class: Bivalvia
Subclass: Pteriomorphia
Order: Ostreoida
Superfamily: Pectinoidea
Family: Pectinidae
Subfamily: Chlamydinae
Genus: Semipallium
Localities for Semipallium aktinos
Bellingham
Black River Beach
Black River Beach: northern end
Black River Beach: southern end
Burnie (unlocalised)
Devonport: Bluff Beach
East Devonport: Moorland Beach
E coast of Tasmania (unlocalised)
Flinders Island: Fotheringate Bay
Flinders Island: Fotheringate Beach: southern end
Flinders Island: Killiecrankie Bay (unlocalised)
Flinders Island: Northeast River: mouth
Flinders Island: Palana Beach
Flinders Island: Patriarch Inlet
Franklin Sound area
King Island: Grassy Harbour
King Island (unlocalised)
King Island: Yellow Rock Beach
Leith: Lillico Beach
Little Chalky Island
Little Peggs Beach
Narawntapu: Bakers Beach
Narawntapu: Copper Cove
Narawntapu: Griffiths Point
North coast of Tasmania (unlocalised)
North West coast of Tasmania (unlocalised)
Passage Island
Peggs Beach: western end
Pipers Head
Rocky Cape: Castle Rock Bay
Rocky Cape: foreshore N of Picnic Beach
Rocky Cape: Forwards Beach
Rocky Cape: Mary Anne Cove area
Rocky Cape: Picnic Beach & rocks to S
Shearwater: Freers Beach
Stanley: Godfreys Beach
Stanley: Halfmoon Bay
Surveyors Bay
Tasmania (unlocalised)
Three Hummock Island: Three Gullies Bay: northern end
Ulverstone (unlocalised)