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)


USNM_84221
Tuscumbia, Alabama
type
Quadrula biangulata Morrison, 1942

USNM_84243
Duck R., Tenn
figured type
Unio intermedius Conrad, 1836

ANSP_41606
Nolachucky R., Tenn.
lectotype
Unio intermedius Conrad, 1836
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.