Bivalvia | Unionida | Unionoidea | Unionidae | Ambleminae | Lampsilini | Ligumia
8 available nominal species synonyms (10 total synonyms)
Ligumia recta — Graf & Cummings (2007), Tiemann et al. (2007), Williams et al. (2008), Watters et al. (2009), Jadhav & Jamkhedkar (2009), ... FMCS (2021), Hnytka et al. (2022), Hopper et al. (2023), Hauck et al. (2023), FMCS (2025)
Ptychobranchus fasciolaris — Watters et al. (2009)
Ligumia latissima — ITIS (2012)
Widespread in the Interior, Nelson, Great Lakes and eastern Gulf Coastal Plain basins, North America. Introduced to the Atlantic Slope via the Erie Canal.

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UAUC_89. (16S: AF385134, COI: AF385110, go to Genbank) Ohio River, near Louisville, Jefferson Co. KY.
UF_438249-6274. (28S: MK036097, 5.8S: MK036180, COI: MK044929, ITS1: MK036180, ND1: MK045080, go to Genbank) Ohio River, Ohio drainage (39.0953, -84.5081).
UMMZ_265711. (28S: DQ191423, COI: AF156516, go to Genbank) Snake River, Mora, MN.
INHS_79831. (28S: MK036099, 5.8S: MK036182, COI: MK044931, ITS1: MK036182, ND1: MK045082, go to Genbank) St. Croix River, St. Croix drainage (45.7246, -92.8499).
INHS_49383. (28S: MK036098, 5.8S: MK036181, COI: MK044930, ITS1: MK036181, ND1: MK045081, go to Genbank) St. Croix River, St. Croix drainage (46.0046, -92.4467).