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Molluscs of Tasmania

Dialidae: Diala suturalis (A. Adams, 1853) (‘sutured diala’)

Synonym(s): suturalis A. Adams, 1853 lauta A. Adams, 1862 punctata Tenison-Woods, 1876 magna Tate, 1891 cento Laseron, 1956.

Typical shell-length 9.0 mm. Shell may be banded or intermittently striped. Lives intertidally and subtidally amongst seaweed and seagrass, especially in sheltered environments. Native. Endemic to southeastern and southwestern Australia (TAS, VIC, SA and WA). In Tasmanian waters, this is a widespread and common species.


Class: Gastropoda
Subclass: Caenogastropoda – Sorbeoconcha
Order: Cerithiimorpha – Cerithiimorpha
Superfamily: Cerithioidea
Family: Dialidae
Genus: Diala

A-L Localities for Diala suturalis

Bicheno: Cod Rock
Bicheno: Redbill Beach
Binalong Bay: Dora Point
Blackman Bay: Little Chinaman Bay
Blackman Bay: Long Spit: bay to E
Blackman Bay (unlocalised)
Blackmans Bay
Black River Beach: southern end
Bridport: beach
Bruny Island (unlocalised)
Burnie: Blythe Heads & estuary
Cape Barren Island: Kenneth Point
Cape Barren Island (unlocalised)
Cape Portland: Home Beach
Carlton: Park Beach
Chain of Lagoons: Four Mile Creek: beach
Clarke Island: Black Point
Clayton: foreshore
Coles Bay: foreshore
Coles Bay: Honeymoon Bay
Coles Bay: Richardsons Beach
Coles Bay (unlocalised)
Coningham Beach
Coningham: foreshore
Connellys Bay
Cremorne: foreshore
Denison Beach: Porch Rocks
D’Entrecasteaux Channel (unlocalised)
Dianas Basin
Dover: beach
Dunalley Bay
Dunalley: beach
Dunalley (unlocalised)
Eaglehawk Neck: western side
East Devonport: Pardoe Point
East Wynyard: beach
Electrona: Peggys Beach
Flinders Island: Arthur Bay: Long Point
Flinders Island: Fotheringate Beach: southern end
Flinders Island: Killiecrankie: foreshore
Flinders Island: Lady Barron: Fisher Island
Flinders Island: Lady Barron: Watering Beach
Flinders Island: Lady Barron: Yellow Beaches
Flinders Island: Leeka: foreshore towards Twelve Hour Point
Flinders Island: Lillies Bay
Flinders Island: Northeast River: mouth
Flinders Island: Parrys Bay: Double Corner
Flinders Island: Sawyers Bay
Flinders Island: Sellars Lagoon
Flinders Island: The Dock
Flinders Island: Whitemark Beach
Frederick Henry Bay: Sloping Island
Garden Island Sands
Georges Bay: Akaroa: foreshore
Georges Bay: Blanche Point
Georges Bay: Moulting Bay: Bayview
Georges Bay: Moulting Bay (unlocalised)
Greens Beach: main beach
Hawley Beach
Howden: foreshore
Kettering foreshore
Kettering: Oyster Cove
Kettering: Trial Bay
King Island: Currie Harbour
King Island: Ettrick Beach
King Island: Fitzmaurice Bay
King Island: Halfmoon Bay
King Island: Little Porky Beach
King Island: Pass River Bay
King Island (unlocalised)
Kingston Beach
Koonya: Newmans Beach
Lauderdale: Ralphs Bay
Lauderdale: Roches Beach
Lauderdale: Seven Mile Beach
Lime Bay
Lime Bay: Black Rock: beach
Little Coningham Beach
Little Swanport: mouth
Little Swanport: Saltworks Beach
Low Head: East Beach
Lulworth: Tam O”Shanter Bay

species image
M-Z Localities for Diala suturalis

Margate foreshore
Maria Island: Encampment Cove
Maria Island: Oyster Bay
Maria Island: Trigonia Corner
Marion Bay: Bream Creek foreshore
Middleton: foreshore
Midway Point (unlocalised)
Murdunna: Duck Creek Beach
Murdunna: Sommers Beach
Narawntapu: Badger Head
Narawntapu: Copper Cove
Norfolk Bay: Lime Bay: ACMA Asterias survey Stn 19
North Bruny Island: Apollo Bay
North Bruny Island: Barnes Bay
North Bruny Island: Ford Bay
North Bruny Island: Great Bay: Smoothys Point
North Bruny Island: Killora Bay
North Bruny Island: Nebraska Beach
Nubeena: Parsons Bay
Orford: East Shelly Beach
Orford: Prosser River: mouth
Orford: Shelly Beach (unlocalised)
Orford: Spring Beach
Orford: West Shelly Beach
Petcheys Bay
Pirates Bay (unlocalised)
Pittwater Bluff: foreshore to W
Port Arthur: Big Possum Beach
Port Arthur: Denmans Cove
Port Arthur: Little Possum Beach
Port Arthur: Point Puer & beach
Port Cygnet: Cray Point
Port Cygnet: Sandrock Bay
Port Davey: Bond Bay
Port Davey: Whalers Cove
Port Latta: Cowrie Point
Premaydena: Impression Bay
Ralphs Bay (unlocalised)
Ransons Beach
Rheban Beach
Rocky Cape: Burgess Cove
Saltwater River (unlocalised)
Sloping Lagoon: Lagoon Beach
Sloping Main: Black Jack Point
Snug Beach
Sorell: causeway
Sorell: Orielton Lagoon
South Arm Neck: northern side
South Bruny Island: Adventure Bay: East Cove
South Bruny Island: Bay of Islands
South Bruny Island: Cloudy Bay Lagoon
South Bruny Island: Cloudy Beaches: eastern beach
South Bruny Island: Mickeys Bay
South Bruny Island: Simpsons Bay
South Bruny Island: Simpsons Bay: southern end
South coast of Tasmania (unlocalised)
Southport Lagoon: northern end
Southport Lagoon: southern end
Stanley: Anthony Beach
Stanley: East Inlet
Stanley: Tatlows Beach
Swanwick: foreshore
Tamar River: Kelso: foreshore
Taroona Beach
Taroona: Dixons Beach
Tasmania (unlocalised)
Tinderbox Beach
Woodbridge: Birchs Bay & Yellow Point
Woodbridge: Flowerpot
Woodbridge: foreshore & Birchs Point

locality map