Ungulinidae

Ungulinidae is a family of marine bivalve molluscs in the order Venerida.

Ungulinidae
Diplodonta rotundata
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Subclass: Heterodonta
Order: Venerida
Superfamily: Ungulinoidea
Family: Ungulinidae
J. Fleming, 1828
Genera

See text.

Characteristics

The members of this family are found in muddy sand or gravel at or below low tide mark. They have characteristically rounded shells with forward-facing umbones (projections). The valves are flattened and deeply etched with concentric rings. Each valve bears two cardinal and two plate-like lateral teeth. These molluscs do not have siphons but the extremely long foot makes a channel which is then lined with slime and serves for the intake and expulsion of water.[1]

Genera and species
  • Diplodonta Bronn, 1831
    • Diplodonta aleutica Dall, 1901
    • Diplodonta candeana (d'Orbigny, 1842)
    • Diplodonta cornea (Reeve, 1850)
    • Diplodonta discrepans (Carpenter, 1857)
    • Diplodonta globus (Finlay, 1927)
    • Diplodonta impolita S. S. Berry, 1953
    • Diplodonta inezensis (Hertlein and Strong, 1947)
    • Diplodonta lupina Brocchi, 1814
    • Diplodonta notata Dall and Simpson, 1901
    • Diplodonta nucleiformis Wagner, 1838
    • Diplodonta obliqua Philippi, 1846
    • Diplodonta orbella (Gould, 1851)
    • Diplodonta punctata (Say, 1822) — Atlantic diplodon
    • Diplodonta rotundata
    • Diplodonta semiaspera Philippi, 1836 — pimpled diplodon
    • Diplodonta sericata (Reeve, 1850)
    • Diplodonta soror C. B. Adams, 1852
    • Diplodonta striatula (Finlay, 1927)
    • Diplodonta subglobosa C. B. Adams, 1852
    • Diplodonta torrelli Jeffreys, 1976
    • Diplodonta venezuelensis Dunker, 1848
    • Diplodonta verrilli Dall, 1900 — Verrill's diplodon
  • Felaniella Dall, 1899
  • Phlyctiderma
    • Phlyctiderma notata (Dall and Simpson, 1901)
    • Phlyctiderma phoebe (Berry, 1960)
    • Phlyctiderma semiaspera (Philippi, 1836)
  • Ungulina

References
  1. Barrett, J. H. and C. M. Yonge, 1958. Collins Pocket Guide to the Sea Shore. P. 157. Collins, London
  • DiscoverLife
  • Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
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