- Sydney Cockle
- Trapezoid Mud Ark
The shells of this species are heavy, obliquely ovate, with a thick external coating (periostracum), particularly at the posterior. Exterior sculpture of broad, strong, radial ribs. The adults are usually without a thread-like byssus. Shell up to 8 cm across.
This species burrows in the mud. It belongs to a group of bivalves that mainly occur in tropical waters of northern Australia, of which only three species live in Victorian waters.
In mud, from low tide to shallow subtidal areas.
Southern Australia, excluding Tasmania.
Plankton or Particles
Native to Australia
- DSE Advisory List : Not listed
- EPBC Act 1999 : Not listed
- IUCN Red List : Not listed