Mactridae

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Mactridae
Temporal range: Cretaceous to Present
Spisula solida.jpg
Shell of Spisula solida
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Veneroida
Family: Mactridae
Lamarck, 1809
Genera

See text

Mactridae, common name the trough shells or duck clams, is a family of saltwater clams, marine bivalve mollusks in the order Veneroida.

Description[edit]

These clams have two short siphons, each with a horny sheath. The shell is shaped like a rounded-cornered equilateral triangle and there is a slight gape at the posterior. Each valve bears two cardinal teeth with four lateral teeth on the right valve and two on the left. The foot is white and wedge-shaped. They mostly inhabit the neritic zone.[1]

Ecology[edit]

Trough shells burrow in sand or fine gravel and never in muddy substrates.[2]

Genera[edit]

Genera within the family Mactridae include:[3]

References[edit]

  1. ^ Barrett, J. H. and C. M. Yonge, 1958. Collins Pocket Guide to the Sea Shore. P. 156. Collins, London
  2. ^ Barrett, J. H. and C. M. Yonge, 1958. Collins Pocket Guide to the Sea Shore. P. 156. Collins, London
  3. ^ http://www.marinespecies.org/aphia.php?p=taxdetails&id=230