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
  • 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. 1 2 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
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.