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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 Lea (1859): summarypublication summary
 Complete CitationLea, I. 1859. Descriptions of four new species of exotic Unionidæ. Proceedings of the Academy of Natural Sciences of Philadelphia 11: 187. Available electronically. Attributed Nominal GeneraMonocondyloea Lea, 1852Lea, 1852. Synopsis Fam. Naiades: 45 [as ‘Monocondylœa’].
 Lea, 1859. Proc. Acad. Nat. Sci. 11: 187 [as ‘Monocondylœa’].
 Lea, 1860. Jour. Acad. Nat. Sci. 4 [O. 7]: 235 [53] [as ‘Monocondylœa’].
 Lea, 1870. Synopsis Fam. Naiades: 73 [as ‘Monocondylœa’].
 (error for Monocondylaea d’Orbigny, 1835)
Attributed Nominal Species| Monocondyloea planulata Lea, 1859
  Lea, 1859. Proc. Acad. Nat. Sci. 11: 187 [as ‘Monocondylœa planulata’]. 
  Lea, 1860. Jour. Acad. Nat. Sci. 4 [O. 7]: 262, pl. 42, fig. 142. Type(s): HOLOTYPE USNM_86351, Java5989.
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 | Monocondyloea rhomboidea Lea, 1859
  Lea, 1859. Proc. Acad. Nat. Sci. 11: 187 [as ‘Monocondylœa rhomboidea’]. 
  Lea, 1860. Jour. Acad. Nat. Sci. 4 [O. 7]: 263 [81], pl. 42, fig. 143. Type(s): SYNTYPES USNM_86329, Tigris R., near Bagdad, Asia.
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 | Unio bulloides Lea, 1859
  Lea, 1859. Proc. Acad. Nat. Sci. 11: 187. 
  Lea, 1860. Jour. Acad. Nat. Sci. 4 [O. 7]: 264 [82], pl. 42, fig. 144. Type(s): HOLOTYPE USNM_85776, Rio de la Plata, S.A.
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 | Unio rudus Lea, 1859
  Lea, 1859. Proc. Acad. Nat. Sci. 11: 187. 
  Lea, 1860. Jour. Acad. Nat. Sci. 4 [O. 7]: 266, pl. 43, fig. 146. Type(s): HOLOTYPE USNM_85337, Rio de la Plata, S. Am.
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