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Page last updated
Thu 3 September 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!

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Bivalvia | Unionoida | Unionoidea | Unionidae | Ambleminae | Lampsilini | Cyrtonaias

species Cyrtonaias explicata (Morelet, 1849): specimens
     2 available nominal species synonyms (6 total synonyms)

Recent Taxonomic Opinions

Cyrtonaias explicataGraf & Cummings (2007), Bogan (2010), Pfeiffer et al. (2019), Inoue et al. (2020), Graf & Cummings (2021), Czaja et al. (2023), Freeman et al. (2025)
Cyrtonaias lividaGraf & Cummings (2007), Bogan (2010), Czaja et al. (2023)

Range

Usumacinta River, Mexico and Guatemala.

Map of Georeferenced Specimens

species map


Guatemala

specimen
SMF_3477

Río Chixoy, Nebemfld. Río Usumacinta, Guatemala

specimen
SMF_3477

Río Chixoy, Nebemfld. Río Usumacinta, Guatemala

specimen
SMF_3478

Rio Chixoy, Nebenfl. d. Rio Usumacinta, Guatemala

specimen
USNM_128995

Rio Chixoy, Rompido, Peten, Guatemala

specimen
USNM_128995

Rio Chixoy, Rompido, Peten, Guatemala

specimen
UF_507903

Rio De La Pasion, 5.5 miles east of Sayaxche, El Peten Department, Guatemala 16.536339, -90.103900

specimen
USNM_783045

Rio de la Pasion, Guatemala

specimen
USNM_783045

Rio de la Pasion, Guatemala

specimen
OSUM_18872

Rio de la Pasion, Peten, Guatemala

specimen
AMNH_140572

Rio de la Pasion, Treasure Island, Peten, Guatemala

specimen
ZMB_39465

Rio de las Salinas, Guatemala

specimen
ZMB_39465

Rio de las Salinas, Guatemala

specimen
BMNH_20190695

Rio Usumacinta, Guatemala

specimen
BMNH_20190695

Rio Usumacinta, Guatemala

specimen
BMNH_20190695

Rio Usumacinta, Guatemala

specimen
MNHN_MP_1297

Rio Usumacinta, Guatemala

specimen
MNHN_MP_1297

Rio Usumacinta, Guatemala

specimen
MNHN-IM-2000-1693

Rio Usumacinta, Guatemala

specimen
MNHN-IM-2000-1693

Rio Usumacinta, Guatemala


Mexico

specimen
MCZ_288415

3 mi SE Emiliano Zapata, Tabasco, Mexico

specimen
MCZ_288415

3 mi SE Emiliano Zapata, Tabasco, Mexico

specimen
MCZ_288415

3 mi SE Emiliano Zapata, Tabasco, Mexico

specimen
BMNH_93-2-4-2027

flumen Usumasinta, ad pagum Balancan Tabascensium [Mexico].

specimen
BMNH_93-2-4-2027

flumen Usumasinta, ad pagum Balancan Tabascensium [Mexico].

specimen
SMF_12407

La Bola, Rio Lacantun, Nebenfl. d Rio Grijalva, Chiapas, Mexico

specimen
SMF_12407

La Bola, Rio Lacantun, Nebenfl. d Rio Grijalva, Chiapas, Mexico

specimen
ANSP_58916

Laguna de Atasta, nr. S.J. Bautista, Tabasco, Mex.

specimen
SMF_12410

Mexico

specimen
SMF_12415

Rio de la Concordia, Nebenfl. d Rio Grijalva, Chiapas, Mexico

specimen
SMF_12408

Rio Grijalva, Chiapas, Mexico

specimen
UF_164047

Rio San Pedro, 3 km N La Palma, Tabasco, Mexico.

specimen
UF_164060

Rio San Pedro, 3 km N La Palma, Tabasco, Mexico.

specimen
UF_164530

Rio San Pedro, 4 km N La Palma, Tabasco, Mexico

specimen
AMS_102110

Rio Usumacinta, 5.5 mi SE Emillano Zapata, Tabasco, Mexico

specimen
INHS_24861

Rio Usumacinta, Boca Lacantum, Chiapas, Mexico

specimen
UF_190666

Rio Usumacinta, Emiliano Zapata, Tabasco, Mexico

specimen
UF_190667

Rio Usumacinta, Emiliano Zapata, Tabasco, Mexico

specimen
USNM_160741

Rio Usumacinta, Monte Cristo, Tabasco, Mexico

specimen
USNM_160741

Rio Usumacinta, Monte Cristo, Tabasco, Mexico

specimen
AMS_102123

small river, 3 mi SE Emiliano Zapata, Tabasco, Mexico

specimen
MCZ_288418

small river, 3 mi SE Emiliano Zapata, Tabasco, Mexico

specimen
MCZ_288418

small river, 3 mi SE Emiliano Zapata, Tabasco, Mexico

specimen
MCZ_288418

small river, 3 mi SE Emiliano Zapata, Tabasco, Mexico

specimen
UF_507898

Usumacinta River, opposite of Emiliano Zapata. Tabasco, Mexico. 17.749685, -91.766995

ZMA_418019. Mexico

Georeferenced Genbank Vouchers


Mexico

UF_507898 (2015-0719). (16S: MK001801, 28S: MK001835, COI: MK001769, go to Genbank) Mexico, Tabasco, Usumacinta River, opposite Emiliano Zapata (17.749685, -91.766995) .

UF_507898 (2015-0720). (16S: MK001802, 28S: MK001836, COI: MK001770, go to Genbank) ditto.