Gulf mapleleaf

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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.

Quadrula es un género de mejillones de agua dulce, moluscos bivalvos de la familia Unionidae, nativa de los ríos del Medio Oeste y cetro-sur de Estados Unidos. Especies Quadrula apiculata Quadrula asperata Quadrula aurea Quadrula couchiana Quadrula cylindrica Quadrula fragosa Quadrula houstonensis Quadrula intermedia Quadrula kleiniana Quadrula metanevra Quadrula nobilis Quadrula nodulata Quadrula petrina Quadrula pustulosa Quadrula quadrula Quadrula refulgens Quadrula rumphiana Quadrula sparsa Quadrula stapes Quadrula succissa Quadrula tuberosa Quadrula verrucosa Referencias…