Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Mollusca
Classis: Bivalvia
Subclassis: Palaeoheterodonta
Ordo: Unionida
Superfamilia: Unionoidea
Familia: Unionidae
Genus: Quadrula
Species: Q. apiculata – Q. asperata – Q. aurea – Q. couchiana – Q. cylindrica – Q. fragosa – Q. houstonensis – Q. intermedia – Q. metanevra – Q. nodulata – Q. petrina – Q. pustulosa – Q. quadrula – Q. refulgens – Q. rumphiana – Q. sparsa – Q. stapes – Q. tuberosa
Name
Quadrula Rafinesque, 1820
References
Quadrula – Taxon details on Integrated Taxonomic Information System (ITIS).
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.
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]
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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