MUSSELpdb

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Species & Genus Richness by
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Geography

Summary

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Species Richness & Endemism by
Geography

Data last updated
Mon 1 Dec 2025

Bivalvia | ... | Unionoidea | Unionidae | Unioninae | Anodontini | Alasmidontina | Arcidens

species Arcidens confragosus (Say, 1829): specimens

2 available nominal species synonyms

Recent Taxonomic Opinions

Arcidens (s.s.) confragosus — Graf & Cummings (2007)
Arcidens confragosus — Tiemann et al. (2007), Williams et al. (2008), Watters et al. (2009), Bogan (2010), Cummings & Graf (2010), ... Graf & Cummings (2021), FMCS (2021), Whelan et al. (2023), Hopper et al. (2023), Perkins et al. (2025)
Arcidens confragosa — Inoue et al. (2014), FMCS (2025)
A. confragosus — Marshall et al. (2018)

Range

Widespread in Interior Basin and from Texas to Alabama in rivers draining to the Gulf of Mexico, USA.

Map of Georeferenced Specimens

MUSSELp Specimen Records

USA

Genbank Vouchers

Georeferenced Genbank Vouchers

USA

JBFMC_12092_1. (16S: PQ238842, go to Genbank) USA: Louisiana, Bayou Pierre.

JBFMC_9543_1. (16S: PQ238840, COI: OK562095, go to Genbank) USA: Texas, Neches River.

JBFMC_9543_2. (16S: PQ238841, go to Genbank) ditto.