Bivalvia | Unionida | Unionoidea | Margaritiferidae | Margaritiferinae | Margaritifera
2 available nominal species synonyms (3 total synonyms)
Margaritifera falcata — Graf & Cummings (2007), Araujo et al. (2009), Chong et al. (2009), Bogan (2010), Hoy et al. (2010), ... Wu et al. (2023), Dai et al. (2025), Chen et al. (2025), FMCS (2025), Chen et al. (2025)
Margaritifera (s.s.) falcata — Bolotov et al. (2016)
Pacific drainages from California north to Alaska, western North America; also from the upper Missouri River in Montana.

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Mp_2741_105BearCreek. (COI: DQ272374, go to Genbank) Bear Creek, Lake Washington Drainage, Washington.
Mp_2741_107BearCreek. (COI: DQ272375, go to Genbank) ditto.
Mp_2741_188CedarCreek. (COI: DQ272378, go to Genbank) Cedar Creek, Lewis River, Columbia River Drainage, Washington.
Mp_2741_189CedarCreek. (COI: DQ272382, go to Genbank) ditto.
Mp_2741_197NasonCreek. (COI: DQ272383, go to Genbank) Nason Creek, Wenatchee River, Columbia River Drainage, Washington.
Mp_2741_157PilchuckCreek. (COI: DQ272376, go to Genbank) Pilchuck Creek, Stillaguamish River Drainage, Washington.
Mp_2741_158PilchuckCreek. (COI: DQ272377, go to Genbank) ditto.
Mp_2741_177YakimaRiver. (COI: DQ272381, go to Genbank) Upper Yakima River, Columbia River Drainage, Washington.
Mp_2741_182YakimaRiver. (COI: DQ272380, go to Genbank) ditto.
Mp_2741_183YakimaRiver. (COI: DQ272379, go to Genbank) ditto.