Sphaeriidae

Family of bivalves

Sphaeriidae
Four shells of Sphaerium corneum. Scale bar is in mm.
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Sphaeriida
Superfamily: Sphaerioidea
Family: Sphaeriidae
Deshayes, 1855 (1820)
Genera

See text

Synonyms

Cycladidae, Rafinesque 1820[1][2]

Sphaeriidae is a family of small to minute freshwater bivalve molluscs in the order Sphaeriida. In the US, they are commonly known as pea clams or fingernail clams.[3][4]

Genera

Genera:[5]

  • Euperinae
    • Byssanodonta d'Orbigny, 1846
    • Eupera Bourguignat, 1854
  • Sphaeriinae
    • Afropisidium Kuiper, 1962
    • Euglesa Jenyns, 1832
    • Musculium Link, 1807
    • Odhneripisidium Kuiper, 1962
    • Pisidium C. Pfeiffer, 1821
    • Sphaerium Scopoli, 1777
  • fossils
    • Megasphaerioides Komatsu, J.-H. Chen & Q.-F. Wang, 2003
    • Protosphaerium Hocknull, 2000
    • Sphaericoncha Kolesnikov, 1980

Biology and ecology

Sphaeriidae are hermaphrodites with internal fertilization. Developing young are incubated within their mother (ovoviviparity), and newborn clams look like miniature copies of the adults.[4]

Parasites and/or predators include the Sciomyzidae.[6]

References

Wikimedia Commons has media related to Sphaeriidae.
Wikispecies has information related to Sphaeriidae.
  1. ^ Bowden, John & Heppell, David (1968). "Revised list of British Mollusca. 2. Unionacea-Cardiacea" (PDF). Journal of Conchology. 26 (4): 237–272, note 55, pages 253–254. Archived from the original (PDF) on 28 December 2014.
  2. ^ Baker, Horace Burrington (1964). "Notes on Sphaeriid Names". The Nautilus. 78 (2): 45–47.
  3. ^ Heard, William H. 1965. Comparative life histories of North American pill clams (Sphaeriidae: Pisidium). Malacologia, 2: 381-411.
  4. ^ a b Heard, William H. 1977. Reproduction of fingernail clams (Sphaeriidae: Sphaerium and Musculium). Malacologia, 16: 421-455.
  5. ^ "WoRMS - World Register of Marine Species - Sphaeriidae Deshayes, 1855 (1820)". www.marinespecies.org. Retrieved 26 October 2021.
  6. ^ Biology of Snail-Killing Sciomyzidae Flies at Google Books
Taxon identifiers
Sphaeriidae
Pisidiidae
Authority control databases: National Edit this at Wikidata
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  • BnF data
  • Israel
  • United States