PORT PHILLIP BAY


Bivalve Mollusc 

Cuna concentrica Hedley, 1902

View scientific description and taxonomy

Scientific Details

Shells of this family of bivalves are small to minute, thick, solid, often triangular in shape with well-defined radial ribs. The juvenile shell, prodissoconch, is retained at the umbo of the adult shell and may be large relative to the size of the adult. Shell up to 3 mm across.

Taxonomy

Phylum:
Mollusca
Subphylum:
Conchifera
Class:
Bivalvia
Subclass:
Heterodonta
Order:
Veneroida
Superfamily:
Carditoidea
Family:
Condylocardiidae
Subfamily:
Cuninae
Genus:
Cuna
Species:
concentrica

General Description

Shells of this family of bivalves are small to minute, thick, solid, often triangular in shape with well-defined radial ribs. The juvenile shell (prodissoconch) is retained at the rounded apex (umbo) in the adult shell and may be large relative to the size of the adult. Shell up to 3 mm across.

Biology

Studies by researchers overseas indicate that the young are incubated by the parent.

Habitat

Mainly offshore waters, sometimes on subtidal sand flats.

Soft substrates

Species Group

Sea snails and shells Bivalves

Depth

Shallow (1-30 m)

Water Column

On or near sea floor

Max Size

3 mm

Diet

Organic matter

Commercial Species

No

Species Code

MoV 1827

Conservation Status

  • DSE Advisory List : Not listed
  • EPBC Act 1999 : Not listed
  • IUCN Red List : Not listed

Author

article author Boyd, S.

Sue Boyd is an Honorary Associate in marine invertebrates at Museum Victoria.

citation

Cite this page as:
Boyd, S., 2011, Bivalve Mollusc, Cuna concentrica, in Taxonomic Toolkit for marine life of Port Phillip Bay, Museum Victoria, accessed 30 May 2017, http://portphillipmarinelife.net.au:8098/species/4944

Text: creative commons cc by licence