Bivalvia | ... | Unionoidea | Unionidae | Unioninae | Anodontini | Anodontina | Anodonta
4 available nominal species synonyms (5 total synonyms)
Anodonta californiensis — Graf & Cummings (2007), Chong et al. (2008), Bogan (2010), Cummings & Graf (2010), IUCN (2011), ... Hopper et al. (2023), MolluscaBase (2024), Galal-Khallaf et al. (2024), FMCS (2025), Cummings et al. (2025)
Anodonta dejecta — Graf & Cummings (2007), Chong et al. (2008), Bogan (2010), Cummings & Graf (2010), ITIS (2012), Mock et al. (2013)
Pyganodon grandis — Williams et al. (2008)
Pyganodon grandis grandis — Watters et al. (2009)
Anodonta nuttalliana — IUCN (2016)
California and east to the Great Basin, USA, south into Mexico.

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TMYERS_009. Laguna El Fresnal, Guzman Basin, Chihuahua, Mexico
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MCZ_247226. (near Fort Clark) Rancho San Bernardino, Mexican Boundary line, Arizona
MCZ_79763. Above Dos Palmas, Colorado Desert, California
USNM_272304. Babocomari River at Huachuca Siding, Arizona 31.636145, -110.490272
MCZ_161905. Colo. R., Calif.
USNM_7072. Colorado Desert near Carriso Creek “Colorado Desert, Teriary Strat 'A Drift, Near Carriso Creek”
USNM_128802. Colorado Desert, on Mexico- California boundary between Salton River and New River at Monument 219
USNM_128801. Colorado River, at mouth
UMMZ_64081. Floor of Colorado Desert, Riverside Co., California
USNM_519291. Imperial Valley, Colorado Desert, Indio, California
ANSP_94250. Imperial Valley, Colorado Desert, Indio, California
USNM_128812. New River (Colorado Desert) at Laguna Station, San Diego Co., California.
USNM_128817. New River (Colorado Desert) at Laguna Station, San Diego Co., California.
ANSP_112129. Old mill dam near Tu…
UMMZ_103244. Rancho San Bernardino, Mexican Boundary line
UMMZ_300635. Rancho San Bernardino, Mexican Boundary line
USNM_129973. San Bernardino Ranch, Arizona
ANSP_112128. Santa Cruz River, above Congress St. bridge, Pima Co., Arizona, USA
LACM_1980.95.1. United States: Arizona; Apache County; Three Forks, W tributary of East Fork Black River
USNM_894305. United States: Arizona; Gila County; Black River, Black River crossing
LACM_1968.258.1. United States: Arizona; Gila County; Black River, Black River crossing
LACM_1967.201.1. United States: Arizona; Gila County; Black River, Tick Flats
LACM_1968.257.1. United States: Arizona; Navajo County; Black River, Military Crossing
LACM_126304. United States: California; Imperial County; New River, Calexico
Mp_2668_Acal_ABR. (COI: EU327356, go to Genbank) Black River, Arizona.