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nominal species Quadrula quadrula contraryensis Utterback, 1915

Quadrula quadrula contraryensis Utterback, 1915 = Quadrula quadrula

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

+ Quadrula quadrula (Rafinesque, 1820) — Lopes-Lima et al., 2019: 5 [Suppl. Appendix 2].

+ Quadrula quadrula (Rafinesque, 1820) — Watters et al., 2009: 286.

+ Quadrula quadrula (Rafinesque, 1820) — Williams et al., 2008: 680.

+ Quadrula quadrula (Rafinesque, 1820) — Parmalee & Bogan, 1998: 221.

+ Quadrula quadrula (Rafinesque, 1820) — R.I. Johnson, 1980: 90.

+ Quadrula quadrula (Rafinesque, 1820) — Burch, 1975: 161.

= Quadrula quadrula contraryensis Utterback — Utterback, 1915: 138, pl. 18, figs. 47a-b.