Quadrula
Quadrula is a genus of freshwater mussels, aquatic bivalve mollusks in the family Unionidae native to rivers of the American Midwest and mid-south. All have thick nacreous shells with well-developed hinge teeth, many also with external shell sculpturing of nodules or lumps.
| Quadrula | |
|---|---|
 | |
| Quadrula fragosa | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Bivalvia |
| Order: | Unionida |
| Family: | Unionidae |
| Genus: | Quadrula Rafinesque, 1820 |
Species within the genus Quadrula
In 2012, many species classified as Quadrula were moved to Rotundaria and Theliderma based on genetic and morphological evidence.[1] Species currently in Quadrula now consist of:[2]
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Quadrula verrucosa
- Quadrula apiculata (Southern mapleleaf)
- Quadrula fragosa (Winged mapleleaf)
- Quadrula nobilis (Gulf mapleleaf)
- Quadrula quadrula (Mapleleaf)
- Quadrula rumphiana (Ridged mapleleaf)
- Quadrula verrucosa (Pistolgrip)
References
- Campbell, David; Lydeard, Charles (2012). "The Genera of Pleurobemini (Bivalvia: Unionidae: Ambleminae)". American Malacological Bulletin. 30 (1): 19–38.
- Quadrula World Register of Marine Species
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