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]
| Sphaeriidae | |
|---|---|
| |
| Four shells of Sphaerium corneum. Scale bar is in mm. | |
Scientific 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] | |
Genera
editGenera:[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
editSphaeriidae 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
edit
Wikimedia Commons has media related to Sphaeriidae.
Wikispecies has information related to Sphaeriidae.
- ^ 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.
- ^ Baker, Horace Burrington (1964). "Notes on Sphaeriid Names". The Nautilus. 78 (2): 45–47.
- ^ Heard, William H. 1965. Comparative life histories of North American pill clams (Sphaeriidae: Pisidium). Malacologia, 2: 381-411.
- ^ a b Heard, William H. 1977. Reproduction of fingernail clams (Sphaeriidae: Sphaerium and Musculium). Malacologia, 16: 421-455.
- ^ "WoRMS - World Register of Marine Species - Sphaeriidae Deshayes, 1855 (1820)". www.marinespecies.org. Retrieved 26 October 2021.
- ^ Biology of Snail-Killing Sciomyzidae Flies at Google Books