species Pyganodon grandis (Say, 1829): specimens

44 available nominal species synonyms (68 total synonyms)

Recent Taxonomic Opinions

Pyganodon grandis — Graf & Cummings (2007), Cyr et al. (2007), Zanatta et al. (2007), Tiemann et al. (2007), Williams et al. (2008), ... Wang et al. (2025), Klymus et al. (2025), Campbell & Lydeard (2026), Wu et al. (2026), Wu et al. (2026)
Pyganodon simpsonaia [sic] — Cyr et al. (2007)
Pyganodon grandis grandis — Watters et al. (2009)
Anodonta grandis grandis — ITIS (2012)
Anodonta grandis corpulenta — ITIS (2012)
Anodonta grandis simpsoniana — ITIS (2012)
Pyganodon simpsoniana — Doucet-Beaupré et al. (2012)
P. grandis — Sheng et al. (2014), Marshall et al. (2018)
Anodonta grandis — Kongim et al. (2015), Soliman et al. (2016)
“Pyganodon grandis” ** — Amaro et al. (2017)

Range

Widespread in interior North America, from the Rio Grande to the Arctic. Invading east into the Atlantic Slope and west into the Pacific. (North America: NA1 NA2 NA3 NA4 NA5)

Map of Georeferenced Specimens

specimens map of Pyganodon grandis

MUSSELp Specimen Records

Type Specimens

MCZ_161861
Camp Lake, Michigan
holotype
Anodon imbricata J.G. Anthony, 1865

MCZ_161867
Slawsons Lake, Michigan
holotype
Anodon inornata J.G. Anthony, 1866

MCZ_150644
Sand Lake, Michigan
holotype
Anodon mcnielii J.G. Anthony, 1866

MCZ_150633
Shears Lake, Michigan
holotype
Anodon opalina J.G. Anthony, 1865

MCZ_150645
Michigan
holotype
Anodon subangulata J.G. Anthony, 1865

MCZ_161863
[Shears Lake, Kent Co.], Michigan
holotype
Anodon subinflata J.G. Anthony, 1865

USNM_86690
Leon Co., Texas
lectotype
Anodonta bealei Lea, 1863

USNM_86677
[no locality available - North America]
possible type
Anodonta corpulenta Cooper, 1834

UMMZ_104010
Clear Lake, Ulvers Pt., Deuel Co., South Dakota
type
Anodonta dakota Frierson, 1910

USNM_86443
Mo. of Saskatchewan R., L. Winnipeg
type
Anodonta dallasiana Lea, 1863

USNM_86426
Topeka, Kas.
holotype
Anodonta danielsii Lea, 1858

USNM_86633
canal, near Cincinnati, Ohio
type
Anodonta decora Lea, 1838

USNM_86468
Fort Winnebago
type
Anodonta footiana Lea, 1840

USNM_86427
Uphaupee Cr., ..., Ala.
type
Anodonta gesnerii Lea, 1858

USNM_86659
Port Gibson, Mississippi
type
Anodonta gigantea Lea, 1838

USNM_86657
Harpeth R., Tenn
type
Anodonta harpethensis Lea, 1840

USNM_5712
Great Slave Lake
cotype
Anodonta kennicottii Lea, 1861

USNM_86442
N End of Lake Winnipeg
type
Anodonta kennicottii Lea, 1861

USNM_87806
Leon, Texas
lectotype
Anodonta leonensis Lea, 1862

USNM_86595
Mohawk, N.Y.
type
Anodonta lewisii Lea, 1857

USNM_86702
Lake Concordia, Louisiana
type
Anodonta linnaeana Lea, 1852

USNM_86706
Ft. Winnebago
type
Anodonta maryattiana Lea, 1840

USNM_128835
New Orleans
holotype
Anodonta opaca Lea, 1852

USNM_86615
Marietta, Ohio
holotype
Anodonta ovata Lea, 1838

USNM_86440
Lake Pepin, Ohio
type
Anodonta pepinianus Lea, 1838

USNM_86626
Bear Grass Creek, near Louisville, Ky
holotype
Anodonta plana Lea, 1834

USNM_86540
Poland, Ohio
holotype
Anodonta salmonia Lea, 1838

USNM_86434
Fort Rae, Gt. Slave Lake
type
Anodonta simpsoniana Lea, 1861

USNM_86664
Bayou Teche, Louisiana
holotype
Anodonta stewartiana Lea, 1834

USNM_86680
Texas
holotype
Anodonta texasensis Lea, 1859

USNM_86666
Red R., Alexandria, Louisiana
type
Anodonta virens Lea, 1852

USNM_86381
Lake Champlain, Vermont
lectotype
Symphynota benedictensis Lea, 1834

Other Specimens by Country | show by collection

7 Specimens from USA

UAT_2225
Lake Mary, 10 mi. SE Flagstaff, Coconino Co., Arizona

SMF_4300
Ohio, U.S.A.

TMYERS_003
Upper Lake Mary at “The Narrows”, Coconino Co., Arizona

DMNH_149886. Lake Mary, 10 mi. SE Flagstaff, Coconino Co., Arizona

DMNH_75128. Lake Mary, 10 mi. SE Flagstaff, Coconino Co., Arizona

UMMZ_60218. Lake Mary, 9 mi. SE Flagstaff, Coconino Co., Arizona

UF_517091. Lake McMillan Reservoir, N of Carlsbad, Eddy Co., New Mexico, USA

GenBank Vouchers

Georeferenced GenBank Vouchers

USA

UMMZ_265697. (28S: AF305384, COI: AF156504, go to GenBank) Huron River, MI.

UF_438033.043. (adenine nucleotide translocase: ON165017, go to GenBank) USA, Florida, Escambia County, Escambia River at Mystic Springs boat ramp (30.85467, -87.31101).

UF_441315.042. (adenine nucleotide translocase: ON165016, go to GenBank) USA, Georgia, Early County, Chattahoochee River at Freeman Bend, about 7.5 km NNE of Columbia, AL (31.35521, -85.08589).

FMNH_327783 (B12). (SRA: SRX26692807, go to GenBank) USA: Minnesota, Belle Creek (44.42441 N 92.767683 W).

FMNH_327783 (B17). (SRA: SRX26692808, go to GenBank) ditto.

FMNH_327783 (B2). (SRA: SRX26692799, go to GenBank) ditto.

FMNH_327783 (B20). (SRA: SRX26692809, go to GenBank) ditto.

FMNH_327783 (B3). (SRA: SRX26692800, go to GenBank) ditto.

FMNH_327783 (B4). (SRA: SRX26692801, go to GenBank) ditto.

FMNH_327783 (B5). (SRA: SRX26692802, go to GenBank) ditto.

FMNH_327783 (B6). (SRA: SRX26692804, go to GenBank) ditto.

FMNH_327783 (B7). (SRA: SRX26692805, go to GenBank) ditto.

FMNH_327783 (B8). (SRA: SRX26692806, go to GenBank) ditto.

FMNH_327784 (1a). (SRA: SRX26692821, go to GenBank) USA: Minnesota, Chub Creek (44.521967 N 93.201275 W).

FMNH_327784 (1b). (SRA: SRX26692822, go to GenBank) ditto.

FMNH_327785 (C10). (SRA: SRX26692818, go to GenBank) ditto.

FMNH_327785 (C11). (SRA: SRX26692819, go to GenBank) ditto.

FMNH_327785 (C12). (SRA: SRX26692820, go to GenBank) ditto.

FMNH_327785 (C2). (SRA: SRX26692827, go to GenBank) ditto.

FMNH_327785 (C3). (SRA: SRX26692782, go to GenBank) ditto.

FMNH_327785 (C4). (SRA: SRX26692783, go to GenBank) ditto.

FMNH_327785 (C5). (SRA: SRX26692784, go to GenBank) ditto.

FMNH_327785 (C8). (SRA: SRX26692816, go to GenBank) ditto.

FMNH_327785 (C9). (SRA: SRX26692817, go to GenBank) ditto.

FMNH_327782 (M1). (SRA: SRX26692810, go to GenBank) USA: Minnesota, Maple Creek (44.095917 N 93.147184 W).

FMNH_327782 (M2). (SRA: SRX26692811, go to GenBank) ditto.

FMNH_327782 (M3). (SRA: SRX26692812, go to GenBank) ditto.

FMNH_327782 (M4). (SRA: SRX26692813, go to GenBank) ditto.

FMNH_327782 (M5). (SRA: SRX26692815, go to GenBank) ditto.

FMNH_327781 (S1). (SRA: SRX26692780, go to GenBank) USA: Minnesota, Shields Lake (44.3804115 N 93.4378782 W).

FMNH_327781 (S10). (SRA: SRX26692824, go to GenBank) ditto.

FMNH_327781 (S11). (SRA: SRX26692825, go to GenBank) ditto.

FMNH_327781 (S12). (SRA: SRX26692826, go to GenBank) ditto.

FMNH_327781 (S14). (SRA: SRX26692785, go to GenBank) ditto.

FMNH_327781 (S15). (SRA: SRX26692786, go to GenBank) ditto.

FMNH_327781 (S16). (SRA: SRX26692787, go to GenBank) ditto.

FMNH_327781 (S17). (SRA: SRX26692788, go to GenBank) ditto.

FMNH_327781 (S18). (SRA: SRX26692789, go to GenBank) ditto.

FMNH_327781 (S19). (SRA: SRX26692790, go to GenBank) ditto.

FMNH_327781 (S20). (SRA: SRX26692791, go to GenBank) ditto.

FMNH_327781 (S21). (SRA: SRX26692793, go to GenBank) ditto.

FMNH_327781 (S22). (SRA: SRX26692794, go to GenBank) ditto.

FMNH_327781 (S23). (SRA: SRX26692795, go to GenBank) ditto.

FMNH_327781 (S24). (SRA: SRX26692796, go to GenBank) ditto.

FMNH_327781 (S25). (SRA: SRX26692797, go to GenBank) ditto.

FMNH_327781 (S26). (SRA: SRX26692798, go to GenBank) ditto.

FMNH_327781 (S4). (SRA: SRX26692781, go to GenBank) ditto.

FMNH_327781 (S5). (SRA: SRX26692792, go to GenBank) ditto.

FMNH_327781 (S6). (SRA: SRX26692803, go to GenBank) ditto.

FMNH_327781 (S7). (SRA: SRX26692814, go to GenBank) ditto.

FMNH_327781 (S8). (SRA: SRX26692823, go to GenBank) ditto.

GenBank Vouchers Not Yet Georeferenced

ANSP_341888. (28S: U82332, go to GenBank)

BM_17211. (ND1: HM852933, go to GenBank)

MMTC_10. (COI: GU085312, ND1: GU085369, go to GenBank)

MMTC_11. (COI: GU085313, ND1: GU085370, go to GenBank)

NEFC_B19-228. (mtGenome: OM736870, go to GenBank)

UF_439342. (16S: PQ238807, COI: OK562083, go to GenBank)

MUSSELpdb

Taxonomy

Geography