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Unionidae

Margaritiferidae

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Species & Genus Richness by
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Species Richness & Endemism by
Geography

Data last updated
Mon 1 Dec 2025

Bivalvia | Unionoida | Unionoidea | Unionidae | Ambleminae | Quadrulini | Quadrulina

genus Theliderma Swainson, 1840: species

3 available nominal genus synonyms (4 total synonyms) | cladomics

Included Species

Theliderma cylindrica (Say, 1817)

syonymy (8 available, 11 total) | specimens (4 + 2 Genbank vouchers)

Range: Ohio, Cumberland, and Ozark Plateau drainages, USA. (North America)

Genbank sequences: 16S, 28S, COI, ND1, SRA
IUCN Red List: Near Threatened
NatureServe: G3
other links: MolluscaBase

Theliderma intermedia (Conrad, 1836)

syonymy (3 available, 4 total) | specimens (3 + 3 Genbank vouchers)

Range: Tennessee and Cumberland rivers, USA. (North America)

Genbank sequences: ND1
IUCN Red List: Endangered B1ab(i,ii,iii,iv)
NatureServe: G1
other links: MolluscaBase

Theliderma johnsoni Bogan & Lopes-Lima in Lopes-Lima & Bogan, 2019

syonymy (1 available, 1 total) | specimens (1)

Range: Mobile Basin, Alabama. (North America)

Genbank sequences: COI, SRA
NatureServe: GNR
other links: MolluscaBase

Decorative image of a representative of Theliderma metanevra

Theliderma metanevra (Rafinesque, 1820)

syonymy (4 available, 11 total) | specimens (3 + 6 Genbank vouchers)

Range: Widespread in the Interior and Mobile basin, USA. (North America)

Genbank sequences: 16S, 5.8S, COI, ITS1, ND1, SRA
IUCN Red List: Critically Endangered A1c (Theliderma tuberosa)
NatureServe: GNR
other links: MolluscaBase

Decorative image of a representative of Theliderma sparsa

Theliderma sparsa (Lea, 1841)

syonymy (1 available, 1 total) | specimens (1 + 2 Genbank vouchers)

Range: Tennessee River, USA. (North America)

Genbank sequences: ND1, SRA
IUCN Red List: Critically Endangered A1c
NatureServe: G1
other links: MolluscaBase

Decorative image of a representative of Theliderma stapes

Theliderma stapes (Lea, 1831)

syonymy (1 available, 3 total) | specimens (1)

Range: Mobile Basin, Gulf Coastal Plain, USA. (North America)

IUCN Red List: Critically Endangered A1c
NatureServe: GX
other links: MolluscaBase

 
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