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 | The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)FM(U)otW(aolcb) is the web version of the MUSSEL Project Database. Follow the links to browse the data or use the custom Google search field. Either way, you win! 
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 Publication Perkins et al. (2017): summarypublication summary | cladograms
 Complete CitationPerkins, M.A., N.A. Johnson & M.M. Gangloff. 2017. Molecular systematics of the critically-endangered North American spinymussels (Unionidae: Elliptio and Pleurobema) and description of Parvaspina gen. nov. Conservation Genetics 18: 745-757. Available electronically. Attributed Nominal GeneraAttributed Nominal Species| Pleurobema beadlianum Campbell et al., 2008‘Lea’  of Authors.
 Campbell et al., 2008. Molec. Ecol. Res. 8: 718.
 Campbell & Lydeard, 2012. Amer. Malac. Bull. 30(1): 29.
 Perkins et al., 2017. Conserv. Genet. 18: 752.
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 | Unio nasutilus Simpson, 1900‘Lea’  of Authors.
 Simpson, 1900. Proc. U.S. Nat. Mus. 22: 735.
 Simpson, 1914. Descr. Cat. Naiades: 691.
 R.I. Johnson, 1970. Bull. MCZ 140(6): 334.
 Burch, 1975. Freshw. Unio. North Amer.: 167.
 Bogan, 2002. Workbook Key Freshw. Biv. NC: Table 5.
 Perkins et al., 2017. Conserv. Genet. 18: 752.
 Inoue et al., 2018. Invert. Syst. 32: Table S2.
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 Taxonomic OpinionsAmblema plicata  Elliptio arca  Elliptio arctata  Elliptio complanata  Elliptio congaraea  Elliptio crassidens  Elliptio folliculata  Elliptio hopetonensis  Elliptio icterina  Elliptio jayensis  Elliptio nasutilus [sic]  = Elliptio producta Elliptio producta (Conrad, 1836) Elliptio pullata  Elliptio roanokensis  Elliptio spinosa  Elliptio (Eurynia) dilatata  = Eurynia dilatata Fusconaia cerina  Fusconaia cor  Fusconaia escambia  Fusconaia flava  Fusconaia masoni  Fusconaia subrotunda  Hemistena lata  Parvaspina collina (Conrad, 1837) Parvaspina steinstansana (Johnson and Clarke, 1983) Plectomerus dombeyanus  Pleurobema beadlianum [sic]  = Pleurobema beadleianum Pleurobema clava  Pleurobema decisum  Pleurobema furvum  = Pleurobema rubellum Pleurobema georgianum  Pleurobema hanleyianum  Pleurobema oviforme  Pleurobema perovatum  Pleurobema pyriforme  Pleurobema rubellum  Pleurobema rubrum  = Pleurobema sintoxia Pleurobema sintoxia  Pleurobema strodeanum  Pleuronaia barnesiana  Pleuronaia dolabelloides  Pleuronaia gibbera  = Pleuronaia gibber Uniomerus declivis  |