Bivalvia | ... | Unionoidea | Unionidae | Ambleminae | Quadrulini | Quadrulina | Theliderma
3 available nominal species synonyms (4 total synonyms)
Theliderma intermedia — 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 intermedia — Zhou et al. (2007), Williams et al. (2008), Bogan (2010), ITIS (2012), Szumowski et al. (2012), IUCN (2012), Haag (2012), Jones (2015), Klymus et al. (2020)
Tennessee and Cumberland rivers, USA. (North America: NA2)

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UAUC_2772. (ND1: AY158782, go to GenBank) Duck R., Marshall Co., Tennessee.
UAUC_2775. (ND1: AY158783, go to GenBank) ditto.
UAUC_1512. (ND1: AY158760, go to GenBank) Powell R., Lee Co., Virginia.