MUSSELpdb

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Unionidae

Margaritiferidae

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Mycetopodidae

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Species Richness & Endemism by
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Data last updated
Mon 1 Dec 2025

Bivalvia | Unionoida | Unionoidea | Unionidae | Ambleminae | Lampsilini | Truncilla

species Truncilla cognata (Lea, 1860): specimens

1 available nominal species synonym (2 total synonyms)

Recent Taxonomic Opinions

Truncilla cognata — Graf & Cummings (2007), Bogan (2010), ITIS (2012), Williams et al. (2017), Burlakova et al. (2019), ... Czaja et al. (2023), Hopper et al. (2023), Saxon et al. (2023), FMCS (2025), Cummings et al. (2025)
Truncilla cognatus — Haag (2012)

Range

Rio Grande basin,Texas and Mexico.

Map of Georeferenced Specimens

MUSSELp Specimen Records

Mexico

USNM_252105. Mexico, Tamaulipas, Salado River near Nuevo Laredo

USA

Genbank Vouchers

Georeferenced Genbank Vouchers

USA

JBFMC_8266-1 (Tcog_RG06). (COI: MZ726616, go to Genbank) Rio Grande R., La Bota Ranch, Webb Co., Texas.

JBFMC_8383-1 (Tcog_RG07). (COI: MZ726617, go to Genbank) Rio Grande R., upstream of La Bota, Webb Co., Texas.

JBFMC_8383-10 (Tcog_RG16). (COI: MZ726622, go to Genbank) ditto.

JBFMC_8383-11 (Tcog_RG17). (COI: MZ726623, go to Genbank) ditto.

JBFMC_8383-12 (Tcog_RG18). (COI: MZ726624, go to Genbank) ditto.

JBFMC_8383-13 (Tcog_RG19). (COI: MZ726625, go to Genbank) ditto.

JBFMC_8383-14 (Tcog_RG20). (COI: MZ726626, go to Genbank) ditto.

JBFMC_8383-15 (Tcog_RG21). (COI: MZ726627, go to Genbank) ditto.

JBFMC_8383-17 (Tcog_RG23). (COI: MZ726628, go to Genbank) ditto.

JBFMC_8383-19 (Tcog_RG25). (COI: MZ726629, go to Genbank) ditto.

JBFMC_8383-3 (Tcog_RG09). (COI: MZ726618, go to Genbank) ditto.

JBFMC_8383-5 (Tcog_RG11). (COI: MZ726619, go to Genbank) ditto.

JBFMC_8383-6 (Tcog_RG12). (COI: MZ726620, go to Genbank) ditto.

JBFMC_8383-8 (Tcog_RG14). (COI: MZ726621, go to Genbank) ditto.

JBFMC_8238-1 (Tcog_RG01). (COI: MZ726611, go to Genbank) Rio Grande R., Webb Co., Texas.

JBFMC_8238-2 (Tcog_RG02). (COI: MZ726612, go to Genbank) ditto.

JBFMC_8238-3 (Tcog_RG03). (COI: MZ726613, go to Genbank) ditto.

JBFMC_8238-4 (Tcog_RG04). (COI: MZ726614, go to Genbank) ditto.

JBFMC_8238-5 (Tcog_RG05). (COI: MZ726615, go to Genbank) ditto.

UF_438552-6496. (28S: MK036138, 5.8S: MK036220, COI: MK044969, ITS1: MK036220, ND1: MK045120, go to Genbank) Rio Grande, Rio Grande drainage (27.6377, -99.627).

UF_438552-6502. (28S: MK036139, 5.8S: MK036221, COI: MK044970, ITS1: MK036221, ND1: MK045121, go to Genbank) ditto.

UF_438552. (SRA: SRR10579080, go to Genbank) USA, Texas, Webb County, Rio Grande (site 2), about 300 m upstream of Santa Isabel Creek (27.63774, -99.62695).

JBFMC_8383_19. (16S: PQ238852, go to Genbank) USA: Texas, Rio Grande.