General Description
The shells of this species are small, quite solid, chalky and more or less triangular in shape. External coating (periostracum) brown. Hinge with grooved "teeth". Shell up to 25 mm across.
Biology
This species can be the dominant species in some locations. It is recorded by some earlier authors under a different scientific name.
Habitat
In sand and mud areas, particularly at river mouths, to depth of 1 m.
Soft substrates
Coastal shores
Distribution guide
Most states of Australia.
Species Group
Sea snails and shells › Bivalves
Depth
Shore (0-1 m)
Shallow (1-30 m)
Water Column
Max Size
25 mm
Diet
Organic matter
Commercial Species
No
Global Dispersal
Recorded in Australia
Conservation Status
- DSE Advisory List : Not listed
- EPBC Act 1999 : Not listed
- IUCN Red List : Not listed
Author
Sue Boyd is an Honorary Associate in marine invertebrates at Museum Victoria.
Cite this page as:
Boyd, S., 2011, Bivalve Mollusc, Spisula trigonella, in Taxonomic Toolkit for marine life of Port Phillip Bay, Museum Victoria, accessed 27 Jul 2025, http://136.154.202.208:8098/species/5641
