Utterback, W.I. 1915. The naiades of Missouri. II. American Midland Naturalist 4(4): 97-152. Available electronically.
Utterback, 1915. Amer. Midl. Nat. 4(4): 123.
Utterback, 1916. Amer. Midl. Nat. 4(7): 43.
(correct name for Magnonaias Utterback, 1915)
Type species: Unio heros Say, 1829 = Megalonaias nervosa
‘Rafinesque’ of Authors.
Agassiz, 1852. Arch. Naturg. 18(1): 48.
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 765.
Ortmann, 1909. Ann. Carnegie Mus. 5: 201.
Ortmann, 1910. Nautilus 23(11): 140.
Ortmann, 1912. Ann. Carnegie Mus. 8: 257.
Simpson, 1914. Descr. Cat. Naiades: 811.
Utterback, 1915. Amer. Midl. Nat. 4(4): 149.
Ortmann, 1918. Proc. Amer. Phil. Soc. 57(6): 543.
Haas, 1929. Senckenbergiana 11: 333.
Haas, 1930. Senckenbergiana 12(6): 319.
(reference to Rotundaria Rafinesque, 1820)
Type species: Obliquaria (Rotundaria) tuberculata Rafinesque, 1820 = Cyclonaias tuberculata
‘Lea’ Utterback, 1915. Amer. Midl. Nat. 4(4): 134, pl. 17, figs. 42a-b.
(misidentified reference to Unio asperatus Lea, 1861)

Utterback, 1915. Amer. Midl. Nat. 4(4): 138, pl. 18, figs. 47a-b.
(intro'd as intra-sp. of Obliquaria (Quadrula) quadrula Rafinesque, 1820)
Type(s): NEOTYPE CM_61.6892 (by Parodiz & Tripp, 1988: 118), Lake Contrary, St. Joseph, Buchanan Co., Missouri.
‘Frierson, MS’ Utterback, 1915. Amer. Midl. Nat. 4(4): 107, pl. 15, figs. 30A-D; pl. 4, figs. 9a-b.
Frierson, 1927. Check List N. Amer. Naiades: 55, sp. 232d.
(intro'd as intra-sp. of Unio undatus Barnes, 1823)
+ Unio undulatus Barnes, 1823
+ Unio pilsbryi Marsh, 1891
+ Unio rubiginosus Lea, 1829
+ Unio multiplicatus Lea, 1831
+ Unio naviformis Lamarck, 1819
+ Unio nobilis Conrad, 1854
+ Unio pustulatus Lea, 1831
+ Unio nodulatus ‘Rafinesque’ of Authors
+ Unio nodulosus Say, 1834
+ Unio lacrymosus Lea, 1828
+ Unio asperrimus Lea, 1831
+ Unio quadrulus ‘Rafinesque’ of Authors
+ Quadrula lachrymosa ‘Lea’ of Authors
+ Unio tuberculatus Barnes, 1823
+ Unio verrucosus Barnes, 1823