Bivalvia | Unionida | Unionoidea | Unionidae | Ambleminae | Lampsilini | Potamilus

species Potamilus fragilis (Rafinesque, 1820): specimens

9 available nominal species synonyms (15 total synonyms)

Recent Taxonomic Opinions

Leptodea fragilis — Graf & Cummings (2007), Tiemann et al. (2007), Williams et al. (2008), Watters et al. (2009), Bogan (2010), ... Inoue et al. (2020), Klymus et al. (2020), Gasparini et al. (2020), Graf & Cummings (2021), Hauck et al. (2023)
Medionidus mcglameriae — Graf & Cummings (2007), Cummings & Graf (2010), ITIS (2012)
Potamilus fragilis — Smith et al. (2020), Johnson & Smith (2020), Smith & Johnson (2020), FMCS (2021), Keogh et al. (2021), Hopper et al. (2023), FMCS (2025), Campbell & Lydeard (2026)

Range

Widespread in the Interior, Great Lakes and Gulf Coastal Plain basins, North America. Introduced to the Northern Atlantic Slope. (North America: NA2 NA3 NA4)

Map of Georeferenced Specimens

MUSSELp Specimen Records

USA

GenBank Vouchers

Georeferenced GenBank Vouchers

USA

INHS_39037_1. (28S: MK036091, 5.8S: MK036174, COI: MK044923, ITS1: MK036174, ND1: MK045074, go to GenBank) Illinois River, Illinois drainage (39.6862, -90.6416).

INHS_39037_2. (28S: MK036092, 5.8S: MK036175, COI: MK044924, ITS1: MK036175, ND1: MK045075, go to GenBank) ditto.

INHS_39037_3. (28S: MK036093, 5.8S: MK036176, COI: MK044925, ITS1: MK036176, ND1: MK045076, go to GenBank) ditto.

UF_438237-LfraAla001. (COI: MT662019, ITS1: MT661766, ND1: MT669665, go to GenBank) USA, Alabama, Monroe County, Alabama River at RM 71, first bend in river downstream of Claiborne Lock & Dam; UTM Zone 16 3496668E, 447857N (31.603941, -87.54968).

UF_439528-LfraMob063. (COI: MT662033, ND1: MT669679, go to GenBank) USA, Alabama, Shelby County, Living River Preserve, picnic area (33.16938, -87.02185).

UF_439528-LfraMob064. (COI: MT662032, ND1: MT669678, go to GenBank) ditto.

UF_439529-LfraAmi057. (COI: MT662029, ND1: MT669675, go to GenBank) USA, Louisiana, Livingston Parish, 0.8km ESE from Babin Road, 1.9km South of the river fork (30.388667, -90.967791).

UF_439529-LfraAmi058. (COI: MT662030, ND1: MT669676, go to GenBank) ditto.

UF_439529-LfraAmi059. (COI: MT662031, ND1: MT669677, go to GenBank) ditto.

UF_439352-LfraAmi041. (COI: MT662021, ND1: MT669667, go to GenBank) USA, Louisiana, Livingston Parish, Amite River (30.38867, -90.96779).

UF_439352-LfraAmi042. (COI: MT662022, ND1: MT669668, go to GenBank) ditto.

UF_439330-LfraAmi040. (5.8S: MT661773, COI: MT662020, ITS1: MT661773, ND1: MT669666, go to GenBank) USA, Louisiana, Livingston Parish, Amite River (30.40467, -90.95933).

UF_439365-LfraPrl045. (COI: MT662025, ND1: MT669671, go to GenBank) USA, Louisiana, St. Tammany Parish, Pearl River (30.455856, -89.763868).

UF_439332-LfraPrl043. (COI: MT662023, ND1: MT669669, go to GenBank) USA, Louisiana, St. Tammany Parish, Pearl River (30.464601, -89.771283).

UF_439332-LfraPrl044. (5.8S: MT661780, COI: MT662024, ITS1: MT661780, ND1: MT669670, go to GenBank) ditto.

UF_439343-LfraPrl046. (COI: MT662026, ND1: MT669672, go to GenBank) USA, Louisiana, St. Tammany Parish, Pearl River (30.486114, -89.785241).

UF_439343-LfraPrl047. (COI: MT662027, ND1: MT669673, go to GenBank) ditto.

UF_439343-LfraPrl048. (COI: MT662028, ND1: MT669674, go to GenBank) ditto.

UF_441212. (5.8S: KT285687, COI: KT285643, ITS1: KT285687, go to GenBank) USA, Texas, Robertson County, Brazos River at FM 485, west of Highway 6 (30.8676502, -96.6956368).

JBFMC_12094_1. (16S: PQ238851, go to GenBank) USA: Louisiana, Bayou Pierre.

JBFMC_12076_1. (16S: PQ238850, go to GenBank) USA: Louisiana, Calcasieu River.

GenBank Vouchers Not Yet Georeferenced

BM_20250. (ND1: HM852932, go to GenBank)

INHS_39037. (SRA: SRX7259525, go to GenBank)

JBFMC_8450_2. (COI: OK562087, go to GenBank)

MMTC_19. (COI: GU085297, ND1: GU085353, go to GenBank)

MMTC_20. (COI: GU085298, ND1: GU085354, go to GenBank)

Mp_2718_drum1. (ND1: GU085400, go to GenBank)

Mp_2718_drum2. (ND1: GU085401, go to GenBank)

NRI8450.2. (COI: MK672788, go to GenBank)

SAMN13473077. (SRA: SRX7259525, go to GenBank)

UAUC_1660. (ND1: MH161360, go to GenBank)

Uncataloged-LfraMob065. (5.8S: MT661792, COI: MT662034, ITS1: MT661792, ND1: MT669680, go to GenBank)