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

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

Canada

image of lot USNM_86434
USNM_86434
Fort Rae, Gt. Slave Lake

image of lot USNM_5712
USNM_5712
Great Slave Lake

image of lot USNM_86443
USNM_86443
Mo. of Saskatchewan R., L. Winnipeg

image of lot USNM_86442
USNM_86442
N End of Lake Winnipeg

unknown

image of lot USNM_86677
USNM_86677
[no locality available - North America]

USA

image of lot MCZ_161863
MCZ_161863
[Shears Lake, Kent Co.], Michigan

image of lot USNM_86664
USNM_86664
Bayou Teche, Louisiana

image of lot USNM_86626
USNM_86626
Bear Grass Creek, near Louisville, Ky

image of lot MCZ_161861
MCZ_161861
Camp Lake, Michigan

image of lot USNM_86633
USNM_86633
canal, near Cincinnati, Ohio

image of lot UMMZ_104010
UMMZ_104010
Clear Lake, Ulvers Pt., Deuel Co., South Dakota

image of lot USNM_86468
USNM_86468
Fort Winnebago

image of lot USNM_86706
USNM_86706
Ft. Winnebago

image of lot USNM_86657
USNM_86657
Harpeth R., Tenn

image of lot USNM_86381
USNM_86381
Lake Champlain, Vermont

image of lot USNM_86702
USNM_86702
Lake Concordia, Louisiana

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

image of lot USNM_86440
USNM_86440
Lake Pepin, Ohio

image of lot USNM_86690
USNM_86690
Leon Co., Texas

image of lot USNM_87806
USNM_87806
Leon, Texas

image of lot USNM_86615
USNM_86615
Marietta, Ohio

image of lot MCZ_150645
MCZ_150645
Michigan

image of lot USNM_86595
USNM_86595
Mohawk, N.Y.

image of lot USNM_128835
USNM_128835
New Orleans

image of lot SMF_4300
SMF_4300
Ohio, U.S.A.

image of lot USNM_86540
USNM_86540
Poland, Ohio

image of lot USNM_86659
USNM_86659
Port Gibson, Mississippi

image of lot USNM_86666
USNM_86666
Red R., Alexandria, Louisiana

image of lot MCZ_150644
MCZ_150644
Sand Lake, Michigan

image of lot MCZ_150633
MCZ_150633
Shears Lake, Michigan

image of lot MCZ_161867
MCZ_161867
Slawsons Lake, Michigan

image of lot USNM_86680
USNM_86680
Texas

image of lot USNM_86426
USNM_86426
Topeka, Kas.

image of lot USNM_86427
USNM_86427
Uphaupee Cr., ..., Ala.

image of lot TMYERS_003
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)

SAMN02054447. (SRA: SRX310659, go to GenBank)

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