PORT PHILLIP BAY


Jackson's Trough Shell 

Mactra jacksonensis Smith, 1855

View scientific description and taxonomy

Scientific Details

Shells of this family are medium to large, some thin for their size, smooth, trigonal in shape, ventral margin rounded, inflated. Shell exterior often smooth, if sculpture present it is concentric. Hinge is strong, left valve with single inverted V-shaped cardinal, right valve with two dorsally joined cardinals, laterals present. Ligament internal, sits in spoon shaped depression in hinge. Adductor muscle scars are approximately equal, pallial sinus well developed.

Taxonomy

Phylum:
Mollusca
Subphylum:
Conchifera
Class:
Bivalvia
Subclass:
Heterodonta
Order:
Veneroida
Superfamily:
Mactroidea
Family:
Mactridae
Subfamily:
Mactrinae
Genus:
Mactra
Subgenus:
Nannomactra
Species:
jacksonensis

General Description

Shell small, elongate somewhat compressed, exterior glossy white with several brown radial rays. Shell up to 12 mm across.

Habitat

In sediment on the sea floor.

Soft substrates

Distribution guide

Most states of Australia.

Species Group

Sea snails and shells Bivalves

Depth

Shallow (1-30 m)

Water Column

On or near sea floor

Max Size

12 mm

Diet

Organic matter

Commercial Species

No

Species Code

MoV 868

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, Jackson's Trough Shell, Mactra jacksonensis, in Taxonomic Toolkit for marine life of Port Phillip Bay, Museum Victoria, accessed 30 Mar 2017, http://portphillipmarinelife.net.au:8098/species/5622

Text: creative commons cc by licence