Sphaeriidae
| Sphaeriidae | |
|---|---|
 | |
| Four shells of Sphaerium corneum. Scale bar is in mm | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Bivalvia |
| Subclass: | Heterodonta |
| Order: | Veneroida |
| Suborder: | Sphaeriacea |
| Family: | Sphaeriidae Deshayes, 1855 (1820) |
| Synonyms | |
|
Cycladidae, Rafinesque 1820[1][2] | |
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Wikispecies has information related to: Sphaeriidae |
The Sphaeriidae are a family of small to minute freshwater bivalve molluscs, in the order Veneroida; this family also includes the clams formerly placed in the Pisidiidae. In the US, they are commonly known as pea clams or fingernail clams.[3][4]
Genera
Genera in the family Sphaeriidae include:
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.
References
- ↑ 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 (PDF) from the original 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.
- 1 2 Heard, William H. 1977. Reproduction of fingernail clams (Sphaeriidae: Sphaerium and Musculium). Malacologia, 16: 421-455.
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