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Thu 17 July 2025

The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)

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Publication Utterback (1915): summary
     publication summary

Complete Citation

Utterback, W.I. 1915. The naiades of Missouri. II. American Midland Naturalist 4(4): 97-152. Available electronically.

Attributed Nominal Genera

Megalonaias Utterback, 1915
Utterback, 1915. Amer. Midl. Nat. 4(4): 123.
Utterback, 1916. Amer. Midl. Nat. 4(7): 43.
(correct name for Magnonaias Utterback, 1915)

Rotundaria Agassiz, 1852
‘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

Attributed Nominal Species

Fusconaia undata trigonoides Utterback, 1915
‘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)

Quadrula pustulosa asperatus Utterback, 1915
‘Lea’ Utterback, 1915. Amer. Midl. Nat. 4(4): 134, pl. 17, figs. 42a-b.
(misidentified reference to Unio asperatus Lea, 1861)

Quadrula quadrula contraryensis Utterback, 1915
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.

Taxonomic Opinions

Amblema (plicata) costata (Rafinesque) = Amblema plicata
+ Unio undulatus Barnes, 1823

Amblema perplicata (Conrad) = Amblema plicata

Amblema perplicata quintardi (Cragin) = Amblema plicata
+ Unio pilsbryi Marsh, 1891

Amblema peruviana (Lamarck) = Amblema plicata

Amblema rariplicata (Deshayes) = Amblema plicata

Cumberlandia monodonta (Say)

Fusconaia ebena (Lea) = Reginaia ebenus

Fusconaia flava (Rafinesque)
+ Unio rubiginosus Lea, 1829

Fusconaia hebetata (Conrad) = Fusconaia flava

Fusconaia undata (Barnes) = Fusconaia flava

Fusconaia undata trigona (Lea) Ortmann = Fusconaia flava

Fusconaia undata trigonoides Frierson, MS = Fusconaia flava

Megalonaias heros (Say) = Megalonaias nervosa
+ Unio multiplicatus Lea, 1831

Quadrula aspera (Lea) = Quadrula quadrula

Quadrula cylindrica (Say) = Theliderma cylindrica
+ Unio naviformis Lamarck, 1819

Quadrula fragosa (Conrad)

Quadrula metanevra Rafinesque = Theliderma metanevra

Quadrula metanevra wardii (Lea) = Theliderma metanevra

Quadrula nobilis (Conrad) = Quadrula quadrula
+ Unio nobilis Conrad, 1854

Quadrula nobilis (Conrad)

Quadrula nodulata Rafinesque = Pustulosa nodulata
+ Unio pustulatus Lea, 1831
+ Unio nodulatus Say, 1834

Quadrula pustulosa (Lea) = Pustulosa pustulosa
+ Unio nodulosus Say, 1834

Quadrula pustulosa asperata (Lea) = Pustulosa kieneriana

Quadrula pustulosa schoolcraftensis (Lea) = Pustulosa pustulosa

Quadrula quadrula Rafinesque
+ Unio lacrymosus Lea, 1828
+ Unio asperrimus Lea, 1831
+ Unio quadrulus Say, 1834
+ Quadrula lachrymosa Swainson, 1840

Quadrula quadrula contraryensis Utterback = Quadrula quadrula

Quadrula verrucosa Rafinesque
+ Unio tuberculatus Barnes, 1823

Rotundaria tuberculata (Rafinesque) = Cyclonaias tuberculata
+ Unio verrucosus Barnes, 1823

 
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