MUSSELpdb | valid sp. Pachynaias spheniopsis specimens

	Home \| About \| Database \| Mussel of the Month \| Publications & Presentations


MUSSELpdb
	Introduction Browse d'basing


Taxonomy
	all genera Unionidae Margaritiferidae Hyriidae Etheriidae Mycetopodidae Iridinidae Species & Genus Richness by Taxonomy


Geography
	Summary North America Central America South America Afrotropics North Eurasia East Asia Australasia Species Richness & Endemism by Geography

Page last updated
Sat 05 Apr 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.

Search the database pages:

species Pachynaias spheniopsis (Morelet, 1849): specimens
1 nominal species

Taxonomic History (since 2007)

Pachynaias spheniopsis — Graf & Cummings (2007), Bogan (2010), Pfeiffer et al. (2019), Pfeiffer et al. (2019), Inoue et al. (2020), Smith et al. (2020), Graf & Cummings (2021), Czaja et al. (2023)

Range: Northern Guatemala to southern Mexico.

Map of Georeferenced Specimens
species map

Guatemala
SMF_12777 Guatemala	SMF_12783 Rio Usumacinta, Guatemala	MCZ_99322 Pasion River, above Tres Islas, Dept. Peten, Guatemala
USNM_783042 Rio de la Pasion, Santa Amelia, Peten, Guatemala	USNM_783043 Rio de la Pasion, Santa Amelia, Peten, Guatemala	USNM_783044 Rio de la Pasion, Santa Amelia, Peten, Guatemala
MCZ_MP_295 3 mi above mouth Rio Santa Amelia, Peten, Guatemala	USNM_128982 Guatemala	USNM_783060 Rio de la Pasion, Santa Amelia, Peten, Guatemala
USNM_128985 Rio Usumacinta, Guatemala	MNHN-IM-2000-1791 Rio Usumacinta, Guatemala	USNM_128990 Rio Usumacinta, Guatemala
BMNH_93-2-4-2028 flumen Usumacinta, Guatemala	ANSP_177257 Pasion R., rapids above Tres Islas, Dept. Peten, Guatemala	OSUM_18869 Santa Amelia, [above mouth Santa Amelia River] Chixoy basin
ZMB_108850 Rio Salinas, Guatemala	UF_507904 Rio De La Pasion, 5.5 miles east of Sayaxche, El Peten Department, Guatemala 16.536339, -90.103900	MCZ_293590 Usumacinta River, Yaxchilan, 106 mi downstream from Sayache, Mexico
SMF_12776 Rio Usumacinta, Guatemala
BMNH_93-2-4-2029 Rio Usumacinta, Guatemala
Mexico
AMS_102116 Rio Usumacinta, Emiliano Zapata, Tabasco, Mexico	UF_164069 Rio San Pedro, 3 km N La Palma, Tabasco, Mexico	UF_164070 Rio San Pedro, 3 km N La Palma, Tabasco, Mexico
UF_190665 Rio Usumacinta, Emiliano Zapata, Tabasco, Mexico	UF_270397 Grijalva River, Mexico	UF_507900 Usumacinta River, opposite of Emiliano Zapata. Tabasco, Mexico. 17.749685, -91.766995
MCZ_288419 Rio Usumacinta, Emiliano Zapata, Tabasco, Mexico	USNM_161477 Monte Cristo, Tabasco, Mexico	USNM_178659 Rio Usumacinta, Tenosique, Tabasco, Mexico
unknown
SMF_3474 Central America	USNM_84392 Central America

Genbank Vouchers

Mexico

UF_507900 (2015-0721) (COI, 16S, 28S) Mexico, Tabasco, Usumacinta River, opposite Emiliano Zapata (17.749685, -91.766995)

UF_507900 (SRA) Mexico, Tabasco, Usumacinta River, opposite Emiliano Zapata (17.749685, -91.766995)

Z_12470 (2018-0553) (COI, 16S, 28S)

Page updated: 11:59:10 Sat 05 Apr 2025

"Making the world a better place, one mollusk at a time."
	The MUSSEL Project — Home Page http://www.mussel-project.net/. Site developed and maintained by Dan Graf & Kevin Cummings. Hosted by The University of Wisconsin-Stevens Point. Funded by The National Science Foundation.