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

Ungulinidae
Diplodonta rotundata
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Venerida
Superfamily: Ungulinoidea
Family: Ungulinidae
J. Fleming, 1828
Genera

See text.

Characteristics

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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

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The following genera are recognised in the family Ungulinidae:[2]

References

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  1. ^ Barrett, J. H. and C. M. Yonge, 1958. Collins Pocket Guide to the Sea Shore. P. 157. Collins, London
  2. ^ "WoRMS - World Register of Marine Species - Ungulinidae Gray, 1854". www.marinespecies.org. Retrieved 2022-11-24.
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