Lyonsiidae

Lyonsiidae is a family of small saltwater clams, marine bivalve molluscs in the order Anomalodesmata.

Lyonsiidae
Lyonsia norvegica
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Subclass: Heterodonta
Order: Anomalodesmata
Superfamily: Pandoroidea
Family: Lyonsiidae
Fischer, 1887[1]
Genera

See text.

Description

Members of this family have inequivalve, oblong valves that are nearly equilateral. The right valve is more convex than the left, and there are usually no teeth. The ligament connecting the two valves is in an internal groove, and the hinge has a free ossicle.[2]

Genera and species

The World Register of Marine Species lists the following genera and species in the family:[1]

References

  1. Gofas, Serge (2010). "Lyonsiidae". WoRMS. World Register of Marine Species. Retrieved 2012-01-05.
  2. Gordon, W. J. Our Country's Shells: A Guide to the British Mollusca. London: Simpkin, Marshall, Hamilton, Kent & Co.


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