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Thu 17 July 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!

Bivalvia | ... | Ambleminae | Quadrulini | Quadrulina | Quadrula

species Quadrula quadrula (Rafinesque, 1820): specimens
     13 available nominal species synonyms (25 total synonyms)

Recent Taxonomic Opinions

Quadrula quadrula — Graf & Cummings (2007), Zhou et al. (2007), Tiemann et al. (2007), Williams et al. (2008), Chapman et al. (2008), ... Keogh et al. (2024), Hou et al. (2024), Xiang et al. (2025), Dai et al. (2025), Freeman et al. (2025)
Quadrula apiculata — Graf & Cummings (2007), Williams et al. (2008), Bogan (2010), Cummings & Graf (2010), ITIS (2012), ... Marshall et al. (2018), Pfeiffer et al. (2019), Pfeiffer et al. (2019), Inoue et al. (2020), Hauck et al. (2023)
Quadrula rumphiana — Graf & Cummings (2007), Williams et al. (2008), Bogan (2010), Cummings & Graf (2010), IUCN (2012), ... Haag (2012), Williams et al. (2017), Inoue et al. (2018), Burlakova et al. (2019), Hauck et al. (2023)
Quadrula fragosa — Watters et al. (2009)
Quadrula quadrula quadrula — ITIS (2012)
Q. quadrula — Sheng et al. (2014)
Quadrula quadrula rumphiana — Keogh et al. (2024)

Range

Widespread in the Interior, Nelson and Great Lakes basins, as well as the western Gulf Coastal Plain, North America.

Map of Georeferenced Specimens

USA

TYPE LOCALITY.

Georeferenced Genbank Vouchers

Mexico

FLMNH_438809_1 (SK20021). (COI, COI M-type) Rio Grande (27.62609, -99.58903)

FLMNH_438809_1 (SK20030). (COI) Rio Grande (27.62609, -99.58903)

FLMNH_438809_2 (SK20023). (COI) Rio Grande (27.62609, -99.58903)

FLMNH_438809_3 (SK20024). (COI, COI M-type) Rio Grande (27.62609, -99.58903)

FLMNH_438809_4 (SK20025). (COI) Rio Grande (27.62609, -99.58903)

FLMNH_438809_5 (SK20026). (COI) Rio Grande (27.62609, -99.58903)

FLMNH_438809_6 (SK20027). (COI) Rio Grande (27.62609, -99.58903)

FLMNH_438809_7 (SK20022). (COI, COI M-type) Rio Grande (27.62609, -99.58903)

FLMNH_438809_8 (SK20028). (COI) Rio Grande (27.62609, -99.58903)

FLMNH_438809_9 (SK20029). (COI, COI M-type) Rio Grande (27.62609, -99.58903)

U.S.A.

JFBM_22857 (SK18144). (COI, COI M-type, ITS1, ND1) Alabama River (32.392701, -87.004616)

ASUMZ_1234_1. (ND1) Arkansas River (35.11874, -92.5532)

ASUMZ_1234_10. (ND1) Arkansas River (35.11874, -92.5532)

ASUMZ_1234_2. (ND1) Arkansas River (35.11874, -92.5532)

ASUMZ_1234_3. (5.8S, COI, ITS1, ND1) Arkansas River (35.11874, -92.5532)

ASUMZ_1234_4. (ND1) Arkansas River (35.11874, -92.5532)

ASUMZ_1234_9. (ND1) Arkansas River (35.11874, -92.5532)

ASUMZ_1460_7 (SK19054). (COI, ND1) Bayou LaGrue (34.09942, -91.16562)

JFBM_23034_1 (SK19083). (COI, COI M-type) Big Canoe Creek (33.848566, -86.250472)

JFBM_23034_2 (SK19084). (COI) Big Canoe Creek (33.848566, -86.250472)

JFBM_23034_3 (SK19085). (COI, COI M-type) Big Canoe Creek (33.848566, -86.250472)

FLMNH_438419_1 (SK19090). (5.8S, COI, ITS1, ND1) Black Warrior (32.555, -87.84409)

FLMNH_438419_2 (SK19091). (5.8S, COI, ITS1, ND1) Black Warrior (32.555, -87.84409)

JFBM_22858_1 (SK18155). (5.8S, COI, COI M-type, ITS1, ND1) Bogue Chitto AL (32.37014, -87.31969)

JFBM_22858_2 (SK18156). (COI, COI M-type, ND1) Bogue Chitto AL (32.37014, -87.31969)

JFBM_22858_3 (SK18157). (COI, COI M-type) Bogue Chitto AL (32.37014, -87.31969)

JFBM_22858_4 (SK18158). (5.8S, COI, ITS1) Bogue Chitto AL (32.37014, -87.31969)

FLMNH_441183 (QapiCol065). (5.8S, COI, ITS1, ND1) Colorado River (31.4831003, -99.030595)

FLMNH_438818 (QapiGal016). (5.8S, COI, ITS1, ND1) Galveston Bay (29.789741, -95.623742)

FLMNH_438818 (QapiGal017). (5.8S, COI, ITS1, ND1) Galveston Bay (29.789741, -95.623742)

JFBM_23178 (152). (COI) Glover River (34.032063, -94.9393)

JFBM_23179_1 (178). (COI) Kiamichi River (34.656876, -95.055331)

JFBM_23179_2 (179). (COI) Kiamichi River (34.656876, -95.055331)

Mp_4399_ (SK21115). (COI) Little River (33.936448, -94.829126)

Mp_4399_ (SK21119). (COI) Little River (33.936448, -94.829126)

Mp_4399_ (SK21120). (COI) Little River (33.936448, -94.829126)

Mp_4399_ (SK21123). (COI) Little River (33.936448, -94.829126)

Mp_4399_ (SK21125). (COI) Little River (33.936448, -94.829126)

Mp_4399_ (SK21126). (COI) Little River (33.936448, -94.829126)

Mp_4399_ (SK21127). (COI) Little River (33.936448, -94.829126)

FLMNH_438814 (QapiNav028). (5.8S, COI, ITS1, ND1) Navidad River (28.95756, -96.54243)

FLMNH_438814 (QapiNav029). (5.8S, COI, ITS1, ND1) Navidad River (28.95756, -96.54243)

TXA&M_NRI_8382_1. (COI, ND1) Rio Grande (27.602238, -99.580507)

TXA&M_NRI_8382_2. (COI) Rio Grande (27.602238, -99.580507)

FLMNH_439169 (QrumTom005). (5.8S, COI, ITS1, ND1) Sipsey River (33.040556, -88.113611)

FLMNH_439169 (QrumTom008). (5.8S, COI, ITS1, ND1) Sipsey River (33.040556, -88.113611)

FLMNH_439169 (QrumTom011). (5.8S, COI, ITS1, ND1) Sipsey River (33.040556, -88.113611)

UA_1489 (QrumMob003). (COI, ND1) Sipsey River (33.1025, -87.95)

JFBM_22862_1 (SK18164). (COI, ND1) Sipsey River (33.331581, -87.761735)

JFBM_22862_2 (SK18165). (COI, COI M-type, ND1) Sipsey River (33.331581, -87.761735)

JFBM_22862_3 (SK18166). (COI, COI M-type) Sipsey River (33.331581, -87.761735)

JFBM_22862_4 (SK18167). (COI, ITS1) Sipsey River (33.331581, -87.761735)

JFBM_22862_5 (SK18168). (5.8S, COI, ITS1) Sipsey River (33.331581, -87.761735)

Mp_4399_ (SK21111). (COI) St. Croix River (45.395003, -92.664611)

Mp_4399_ (SK21112). (COI) St. Croix River (45.395003, -92.664611)

TXA&M_NRI_8262. (5.8S, COI, ITS1, ND1) Trinity River (31.6632089, -95.79061759)

TXA&M_NRI_8378_2 (SK19163). (COI) Trinity River (33.305606, -96.607848)

TXA&M_NRI_8378_3 (SK19164). (COI, ND1) Trinity River (33.305606, -96.607848)

USA

FLMNH_438891_1 (SK19058). (5.8S, COI, COI M-type, ITS1, ND1) Alabama River (31.6139, -87.55)

FLMNH_438891_1 (SK19068). (5.8S, ITS1, ND1) Alabama River (31.6139, -87.55)

FLMNH_438891_1 (SK19069). (5.8S, COI, ITS1, ND1) Alabama River (31.6139, -87.55)

FLMNH_438891_1 (SK19070). (ITS1, ND1) Alabama River (31.6139, -87.55)

FLMNH_438891_2 (SK19059). (5.8S, COI, ITS1, ND1) Alabama River (31.6139, -87.55)

FLMNH_438891_3 (SK19060). (5.8S, ITS1, ND1) Alabama River (31.6139, -87.55)

FLMNH_438891_4 (SK19061). (ND1) Alabama River (31.6139, -87.55)

FLMNH_438891_5 (SK19062). (5.8S, ITS1, ND1) Alabama River (31.6139, -87.55)

FLMNH_438891_6 (SK19063). (5.8S, COI, ITS1, ND1) Alabama River (31.6139, -87.55)

FLMNH_438891_7 (SK19064). (5.8S, ITS1, ND1) Alabama River (31.6139, -87.55)

FLMNH_438891_8 (SK19065). (5.8S, COI, ITS1, ND1) Alabama River (31.6139, -87.55)

FLMNH_438891_9 (SK19066). (5.8S, COI, ITS1, ND1) Alabama River (31.6139, -87.55)

Mp_4399_ (SK19067). (5.8S, COI, ITS1, ND1) Alabama River (31.6139, -87.55)

UAUC_1044. (ND1) Black Warrior R., Jefferson Co., Alabama

FLMNH_438826_1 (SK19086/20049). (5.8S, COI, ITS1, ND1) Bogue Chitto AL (32.31001, -87.27863)

FLMNH_438826_2 (SK19087/20050). (5.8S, COI, ITS1, ND1) Bogue Chitto AL (32.31001, -87.27863)

FLMNH_438826_3 (SK20002). (COI) Bogue Chitto AL (32.31001, -87.27863)

FLMNH_439143 (QapiPrl126). (5.8S, COI, ITS1, ND1) Bogue Chitto LA (30.62254, -89.87655)

FLMNH_439143 (SK19099). (5.8S, COI, ITS1, ND1) Bogue Chitto LA (30.62254, -89.87655)

UAUC_331. (ND1) Coosawattee R., Gordon Co., Georgia

UMMZ_265699. (28S, COI) Grand River, MI

JFBM_23040_1 (SK19109). (COI) Iowa River (41.555722, -91.519682)

JFBM_23040_2 (SK19110). (COI) Iowa River (41.555722, -91.519682)

JFBM_23040_3 (SK19111). (COI) Iowa River (41.555722, -91.519682)

JFBM_23040_4 (SK19112). (COI, COI M-type) Iowa River (41.555722, -91.519682)

JFBM_23040_5 (SK19113). (COI, COI M-type) Iowa River (41.555722, -91.519682)

JFBM_23040_6 (SK19114). (COI) Iowa River (41.555722, -91.519682)

JFBM_23040_7 (SK19115). (COI) Iowa River (41.555722, -91.519682)

JFBM_23040_8 (SK19116). (COI) Iowa River (41.555722, -91.519682)

ASUMZ_1230_7 (QapiRed139). (COI, ND1) Little River (33.691899, -93.965148)

TXA&M_NRI_8566_1 (SK19176). (COI, ND1) Little River (33.9762, -94.9322)

TXA&M_NRI_8566_2 (SK19177). (COI) Little River (33.9762, -94.9322)

TXA&M_NRI_8566_3 (SK19178). (COI) Little River (33.9762, -94.9322)

JFBM_23044_1 (SK19121). (COI, COI M-type) Mississippi River (42.056605, -90.14924)

JFBM_23044_2 (SK19122). (COI, ND1) Mississippi River (42.056605, -90.14924)

JFBM_23044_3 (SK19123). (COI, COI M-type, ND1) Mississippi River (42.056605, -90.14924)

JFBM_23044_4 (SK19124). (COI, ND1) Mississippi River (42.056605, -90.14924)

JFBM_23044_5 (SK19125). (COI, COI M-type, ND1) Mississippi River (42.056605, -90.14924)

JFBM_23042 (SK19118). (COI, ND1) Mississippi River (43.603198, -91.230798)

JFBM_23041 (SK19117). (COI, COI M-type, ND1) Mississippi River (43.634071, -91.241814)

JFBM_23043_1 (SK19119). (COI, COI M-type) Mississippi River (43.664114, -91.235728)

JFBM_23043_2 (SK19120). (COI, COI M-type) Mississippi River (43.664114, -91.235728)

JFBM_23045_1 (SK19126). (COI, ND1) Mississippi River (45.030727, -93.282595)

JFBM_23045_2 (SK19127). (COI, ND1) Mississippi River (45.030727, -93.282595)

JFBM_23045_3 (SK19128). (COI, COI M-type, ND1) Mississippi River (45.030727, -93.282595)

UAUC_902. (ND1) Muskingum R., Washington Co., Ohio

UAUC_2620. (ND1) Neches R., Tyler Co., Texas

FLMNH_439196 (SK20035). (5.8S, COI, ITS1, ND1) Neches River (30.659012, -94.170894)

FLMNH_438804_1 (SK19097). (5.8S, COI, ITS1, ND1) Nueces River (28.337458, -98.086636)

FLMNH_438801_1 (SK19096). (5.8S, COI, ITS1, ND1) Nueces River (28.382964, -98.109617)

FLMNH_438561_1 (SK19094). (5.8S, COI, COI M-type, ITS1, ND1) Nueces River (28.47405, -98.25166)

FLMNH_438561_2 (SK19095). (5.8S, COI, ITS1, ND1) Nueces River (28.47405, -98.25166)

FLMNH_438561_3 (QapiNue088). (5.8S, COI, COI M-type, ITS1, ND1) Nueces River (28.47405, -98.25166)

FLMNH_438561_4 (QapiNue089). (5.8S, COI, ITS1, ND1) Nueces River (28.47405, -98.25166)

FLMNH_438561_5 (QapiNue090). (COI, COI M-type, ITS1, ND1) Nueces River (28.47405, -98.25166)

UAUC_1695. (ND1) Ohio R.,Vanderburgh Co., Indiana

FLMNH_439156 (QquaOhi016). (COI, ND1) Ohio River (39.39123122, -81.42094424)

FLMNH_439156 (SK19100). (5.8S, COI, ITS1, ND1) Ohio River (39.39123122, -81.42094424)

FLMNH_439156 (SK19101). (5.8S, COI, ITS1, ND1) Ohio River (39.39123122, -81.42094424)

FLMNH_439156 (SK19102). (5.8S, COI, ITS1, ND1) Ohio River (39.39123122, -81.42094424)

UA_3563. (28S, 5.8S, COI, ITS1, ND1) Ohio River, Ohio drainage (37.8, -87.6569)

UAUC_435. (ND1) Oostanaula R., Gordon Co., Georgia

JFBM_22865_1 (SK18179). (COI, COI M-type, ND1) Osage River (38.231031, -92.558275)

JFBM_22865_2 (SK18180). (COI, ND1) Osage River (38.231031, -92.558275)

JFBM_22865_3 (SK18181). (COI, ND1) Osage River (38.231031, -92.558275)

JFBM_22865_4 (SK18182). (5.8S, COI, COI M-type, ITS1) Osage River (38.231031, -92.558275)

JFBM_22865_5 (SK18183). (COI, COI M-type) Osage River (38.231031, -92.558275)

JFBM_22865_6 (SK18184). (COI, COI M-type) Osage River (38.231031, -92.558275)

ASUMZ_QF5 (QfraOua021). (COI, ND1) Ouachita River (32.95613, -92.07864)

ASUMZ_QF1 (QfraOua017). (COI, ND1) Ouachita River (33.03438, -92.09618)

FLMNH_438884_1 (SK20036). (COI M-type) Pascagoula River (30.63228, -88.652401)

FLMNH_438884_3 (SK20038). (5.8S, COI, ITS1, ND1) Pascagoula River (30.63228, -88.652401)

FLMNH_438884_4 (SK20039). (5.8S, COI, ITS1, ND1) Pascagoula River (30.63228, -88.652401)

UAUC_1045. (ND1) Red R., Powell Co., Kentucky

FLMNH_438787 (QquaRed002). (5.8S, COI, ITS1, ND1) Red River (33.854656, -95.341305)

FLMNH_438554_2 (QapiRGr081). (5.8S, COI, ITS1, ND1) Rio Grande (27.63774, -99.62695)

FLMNH_438554_3 (QapiRGr082). (5.8S, COI, ITS1, ND1) Rio Grande (27.63774, -99.62695)

FLMNH_438554_4 (QapiRGr083). (5.8S, COI, ITS1, ND1) Rio Grande (27.63774, -99.62695)

FLMNH_438747 (QapiRGr092). (5.8S, COI, ITS1, ND1) Rio Grande (27.64193, -99.60222)

FLMNH_441088 (QapiCol044). (5.8S, COI, ITS1, ND1) San Saba River (31.20738, -98.68761)

UAUC_722. (ND1) Sipsey R., Pickens Co., Alabama

UAUC_1698. (ND1) Spring R., Cherokee Co., Kansas

FLMNH_438313_1 (SK20010/041). (5.8S, COI, ITS1, ND1) Trinity River (30.627278, -95.008917)

FLMNH_438313_6 (SK20015/046). (COI, COI M-type) Trinity River (30.627278, -95.008917)

FLMNH_441182_2 (QapiTri064). (5.8S, COI, ITS1, ND1) Trinity River (32.592543, -96.486377)

FLMNH_438952_2 (QapiTri113). (5.8S, COI, ITS1, ND1) Trinity River (32.980521, -97.09841)

UF_439156. (5.8S, COI, ITS1, ND1) USA, Ohio, Wood County, Ohio River; Buckley Island backchannel (39.3912312, -81.4209442)

UF_441088. (16S, 28S, 5.8S, COI, ITS1, SRA) USA, Texas, San Saba County, San Saba River at CR 104, San Saba River Golf Course, near San Saba, TX (31.20738, -98.68761)

UF_438554 (QapiRGr081). (5.8S, COI, ITS1, ND1) USA, Texas, Webb County, Rio Grande (site 2), about 300 m upstream of Santa Isabel Creek (27.63774, -99.62695)

ASUMZ_QF4 (QfraOua020). (COI, ND1) USA: Ouachita River (32.95613 N 92.07864 W)

UA_3609 (QquaOhi010). (ND1) USA: Red River KY (37.84167 N 83.76 W)