MUSSELpdb | valid sp. Megalonaias nervosa specimens

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Page last updated
Tue 01 Jul 2025

The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)

FM(U)otW(aolcb) is the web version of the MUSSEL Project Database. Follow the links to browse the data or use the custom Google search field. Either way, you win!

This page reports the specimens in the MUSSELpdb and provides a map if geocodes are known. The taxonomic history reports the record of different names and combinations that have been applied to this species (and its synonyms) since 2007.

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species Megalonaias nervosa (Rafinesque, 1820): specimens
14 nominal species as synonyms

Taxonomic History (since 2007)

Megalonaias nervosa — Tiemann et al. (2007), Graf & Cummings (2007), Williams et al. (2008), Watters et al. (2009), ..., Czaja et al. (2023), Neemuchwala et al. (2023), Hopper et al. (2023), Hauck et al. (2023)
Megalonaias boykiniana — Graf & Cummings (2007), Cummings & Graf (2010), ITIS (2012)
Tritogonia nervosa — ITIS (2012)
Megalonaias gigantea — ITIS (2012)
M. nervosa — Marshall et al. (2018)

Range: Widespread in the Interior Basin and Gulf Coastal Plain, including the Ochlochonee of Florida, USA south into Mexico.

Map of Georeferenced Specimens
species map

Guatemala
UF_507902 Rio De La Pasion, 5.5 miles east of Sayaxche, El Peten Department, Guatemala 16.536339, -90.103900	USNM_783054 Rio de la Pasion, Guatemala	USNM_783053 Rio de la Pasion, Guatemala
USNM_783056 Rio de la Pasion, Guatemala	USNM_783064 Rio de la Pasion, Guatemala
Mexico
USNM_83991 Sabinas R., Nuevo Leon, Mexico	INHS_89425 Rio Tempoal, Tempoal, Veracruz, Mexico	USNM_123293 Vera Cruz, Mexico
UF_270395 Nuevo Leon, Mexico	UF_270398 Veracruz, Mexico
USA
USNM_150554 Coosa Riv., St. Clair Co., Ala.	USNM_83903 Columbus, Georgia
USNM_592725 United States, New Mexico, Eddy County, Pecos River, Malaga Bend USNM_709225 United States, New Mexico, Eddy County, Pecos River, below McMillan Reservoir Dam

Genbank Vouchers

USA

UF_438300 (MnerGua025) (COI, ND1, ITS1, 5.8S) USA, Texas, Guadalupe County, Lake Wood State Park - Guadalupe River - just below Lake Wood Dam ~80 m below spillway (29.46975, -97.49062)

UF_439113 (MnerOhi057) (COI, ND1, ITS1, 5.8S) USA, Ohio, Wood County, Ohio River, Buckley Island backchannel (39.391231, -81.420944)

UF_438512 (COI, 16S, 28S) USA, Florida, Santa Rosa County, Escambia River, about 0.3 mi above Chumuckla Springs boat ramp (30.82597, -87.29701)

UAUC_266 (COI, ND1) Coosa River, near Leesburg, downstream from mouth of Terrapin Ck., Cherokee Co., AL

JBFMC_12095_1 (16S) USA: Texas, Red River

Z_12423 (2015-0501) (COI, 16S, 28S)

NCSM_35123 (SRA)

ANSP_346111 (28S)

Page updated: 07:52:32 Tue 01 Jul 2025

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