Bivalvia | ... | Unionoidea | Unionidae | Ambleminae | Quadrulini | Quadrulina | Theliderma
8 available nominal species synonyms (11 total synonyms)
Theliderma cylindrica — Graf & Cummings (2007), Cummings & Graf (2010), Williams et al. (2017), Lopes-Lima et al. (2019), Graf & Cummings (2021), FMCS (2021), Neemuchwala et al. (2023), Hopper et al. (2023), FMCS (2025)
Quadrula cylindrica — Williams et al. (2008), Bogan (2010), Haag (2012), IUCN (2012), Klymus et al. (2020)
Quadrula cylindrica cylindrica — Watters et al. (2009), ITIS (2012), Szumowski et al. (2012), McMurray et al. (2012)
Quadrula cylindrica strigillata — ITIS (2012), Szumowski et al. (2012), Jones (2015)
Ohio, Cumberland, and Ozark Plateau drainages, USA.

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UAUC_2774. (ND1: AY158800, go to Genbank) Clinch R., Hancock Co., Tennessee.
UAUC_2773. (ND1: AY158785, go to Genbank) Duck R., Marshall Co.,Tennessee.