Anodonta anatina monstrosa Brot, 1867
Mörch, 1853. Cat. Conch. Yoldi 2: 48 [as ‘A. monstrosa’]. [nomen nudum]
Brot, 1867. Assoc. Zool. Léman Ann. (1866): [42,] pl. 7, fig. 2.
(intro'd as intra-sp. of Mytilus anatinus Linnaeus, 1758)

Anodonta cygnea lingua Mörch, 1863
‘Yoldi’ Mörch, 1853. Cat. Conch. Yoldi 2: 48 [as ‘A. lingua’]. [nomen nudum]
‘(Yoldi)’ Mörch, 1863. Vidensk. Medd. Naturhist. Foren. Kjöben. (17-22): 83.
(intro'd as intra-sp. of Mytilus cygneus Linnaeus, 1758)

Diplodon parallelepipedum Mörch, 1853
‘Lea’ Mörch, 1853. Cat. Conch. Yoldi 2: 47.
(error for Unio parallelopipedon Lea, 1834)

Mytilus cellensis Menke, 1828
‘Gmelin’ of Authors.
Menke, 1828. Syn. Method. Moll.: 63.
Menke, 1830. Syn. Method. Moll.: 106.
Küster, 1839. Conchyl. Cab. 9(1): 16.
Mörch, 1853. Cat. Conch. Yoldi 2: 48.
Clessin, 1877. Deutsche Excurs. Moll. Fauna: 438.
Drouët, 1881. Unionidae Russie: 22.
Bourguignat, 1882. Natural. Sicil. 2 (1): 20 [1].
Westerlund, 1890. Fauna Paläarct. Binnenconch. 2(7): 211.
Zhadin, 1938. Faune USSR Mollusques 4(1): 119.
Modell, 1945. Jena. Z. Med. Naturw. 78: 81.
(error for Mytilus zellensis Gmelin, 1791)

Pleiodon macmurtrei Conrad, 1834
‘Conrad’ of Authors.
Conrad, 1834. Jour. Acad. Nat. Sci. 7(1): 180.
Hanley, 1843. Illustr. Descr. Cat. Rec. Bivalve Shells: 225.
Mörch, 1853. Cat. Conch. Yoldi 2: 49.
Pilsbry & Bequaert, 1927. Bull. AMNH 53: 443.
Haas, 1969. Das Tierreich 88: 601.
Mandahl-Barth, 1988. Studies on African Freshwater Bivalves: 57.
Daget, 1998. Cat. Bivalves Africains: 151.
(incorrect original spelling of Pleiodon macmurtriei Conrad, 1834)

Unio carolinensis Mörch, 1853
‘Bosc’ of Authors.
Mörch, 1853. Cat. Conch. Yoldi 2: 46.
Campbell & Lydeard, 2012. Amer. Malac. Bull. 30(1): 33.
(error for Unio caroliniana Bosc, 1801)

Unio metanever Lea, 1829
‘Rafinesque’ of Authors.
Lea, 1829. Trans. Amer. Phil. Soc. 3 [O. 1]: 418.
Jay, 1835. Cat. Rec. Shells: 17.
Hanley, 1843. Illustr. Descr. Cat. Rec. Bivalve Shells: 179.
Agassiz, 1852. Arch. Naturg. 18(1): 48.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 252.
Mörch, 1853. Cat. Conch. Yoldi 2: 44.
Lewis, 1871. Amer. J. Conch. 6: 218.
Lea, 1871. Proc. Acad. Nat. Sci. 23: 15 [as ‘Margarita (Unio) metanever’].
(reference to Obliquaria (Quadrula) metanevra Rafinesque, 1820)

Unio suborbiculatus Conrad, 1836
‘Hildreth’ of Authors.
Conrad, 1836. Monogr. Fam. Unionidae 1(4): 35.
Mörch, 1853. Cat. Conch. Yoldi 2: 46.
(error for Unio orbiculatus Hildreth, 1828)

Unio (Obovaria) orbicularis Mörch, 1853
Mörch, 1853. Cat. Conch. Yoldi 2: 44. [nomen nudum]

Unio (Scalenaria) scalenarius Mörch, 1853
‘Raf.’ Mörch, 1853. Cat. Conch. Yoldi 2: 44.
(error for Obliquaria (Scalenaria) scalenia Rafinesque, 1820)