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Olividae – Ancillariinae: Amalda petterdi (Tate, 1893) (‘spindle-shaped olive’)
Synonym(s): petterdi Tate, 1893 gaza Iredale, 1924.
Typical shell-length 25 mm. Lives subtidally and offshore on sand and mud. Native. Endemic to southern and eastern Australia (QLD, NSW, TAS, VIC and SA). In Tasmanian waters, this is a rare species largely confined to the N coast.
Classification
Class: Gastropoda
Subclass: Caenogastropoda – Sorbeoconcha
Order: Hypsogastropoda – Neogastropoda
Superfamily: Olivoidea
Family: Ancillariidae
Genus: Amalda
Localities for Amalda petterdi
Black River Beach
Black River Beach: northern end
Black River Beach: southern end
Cape Barren Island: Thunder & Lightning Bay
Flinders Island: Northeast River: mouth
Greens Beach: main beach
King Island (unlocalised)
Little Peggs Beach
North coast of Tasmania (unlocalised)
Peggs Beach: eastern end
Peggs Beach: western end
Port Latta: Cowrie Point
Rocky Cape: foreshore N of Picnic Beach
Stanley: East Inlet
Stanley: Tatlows Beach
Tasmania (unlocalised)
Three Hummock Island: Three Gullies Bay
![species image](https://molluscsoftasmania.org.au/wp-content/uploads/2018/05/Amalda-petterdi-1.jpg)
![locality map](https://molluscsoftasmania.org.au/wp-content/uploads/2018/05/Amalda-petterdi.jpg)