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Page last updated
Sun 07 Sep 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.

The MUSSEL Project Database has moved to a new server, with a new URL! The new address for this page is: https://musselpdb.org/db.php?ty=validsp&id=2664

Search the database pages:

Unionoidea | Unionidae | Ambleminae | Quadrulini | Quadrulina | Quadrula

species Quadrula quadrula (Rafinesque, 1820): specimens
     25 nominal species as synonyms

Taxonomic History (since 2007)

Quadrula quadrulaZhou et al. (2007), Tiemann et al. (2007), Graf & Cummings (2007), Chapman et al. (2008), ..., Dai et al. (2025), Freeman et al. (2025), Chen et al. (2025), FMCS (2025)
Quadrula apiculataGraf & Cummings (2007), Williams et al. (2008), Cummings & Graf (2010), Bogan (2010), ..., Pfeiffer et al. (2019), Pfeiffer et al. (2019), Inoue et al. (2020), Hauck et al. (2023)
Quadrula rumphianaGraf & Cummings (2007), Williams et al. (2008), Cummings & Graf (2010), Bogan (2010), ..., Williams et al. (2017), Inoue et al. (2018), Burlakova et al. (2019), Hauck et al. (2023)
Quadrula fragosaWatters et al. (2009)
Quadrula quadrula quadrulaITIS (2012)
Q. quadrulaSheng et al. (2014)
Quadrula quadrula rumphianaKeogh 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
species map


USA

specimen
USNM_84165

Cincinnati, Ohio

specimen
USNM_84169

Texas

specimen
USNM_84172

Leon Co., Texas

specimen
USNM_84174

Cincinnati, Ohio

specimen
USNM_84189

West Georgia

specimen
USNM_84190

Othcaloosa Cr., Ga.

specimen
USNM_84212

Claiborne, Ala. R., Alabama

specimen
ANSP_20224

Salt River

specimen
UMMZ_209203

Fox River, nr. De Pere, Wisc.

specimen
CM_61.6892

Lake Contrary, St. Joseph, Buchanan Co., Missouri

   

type locality

Genbank Vouchers

Mexico

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

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

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

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

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

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

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

FLMNH_438809_6 (SK20027) (COI) 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)

U.S.A.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

USA

UF_441088 (COI, 16S, 28S, ITS1, 5.8S, 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)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

JFBM_23040_4 (SK19112) (COI, COI M-type) 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)

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

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

UMMZ_265699 (COI, 28S) Grand River, MI

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

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

JFBM_22865_3 (SK18181) (COI, ND1) 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_QF1 (QfraOua017) (COI, ND1) Ouachita River (33.03438, -92.09618)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

 

FLMNH_438951_1 (QapiTri107) (COI, ND1, ITS1, 5.8S)

TXA&M_NRI_8122_1 (COI, ND1, ITS1, 5.8S)

TXA&M_NRI_8427_2 (COI, ND1, ITS1, 5.8S)

FLMNH_441182_1 (QapiTri063) (COI, ND1, ITS1, 5.8S)

TXA&M_NRI_8470_2 (COI, ND1, ITS1, 5.8S)

FLMNH_441004_2 (SK19093) (COI, ND1, ITS1, 5.8S)

FLMNH_441004_1 (SK19092) (COI, ND1, ITS1, 5.8S)

TXA&M_NRI_8427_1 (COI, ND1, ITS1)

Mp_2667_H1774 (COI, COII)

TXA&M_NRI_8584_2 (SK19166) (COI, ND1)

ASUMZ_QF3 (QfraOua019) (COI, ND1)

TXA&M_NRI_8437_2 (COI, ND1)

TXA&M_NRI_8656_1 (SK19173) (COI, ND1)

FLMNH_440990_2 (SK20007) (COI, ND1)

JFBM_23111_3 (SK21003) (COI, ND1)

JFBM_23111_1 (SK21001) (COI, ND1)

Mp_2667_H1774g (COI M-type, COII M-type)

JFBM_23111_2 (SK21002) (COI, ND1)

UA_1726 (QspeMob015) (COI, ND1)

TXA&M_NRI_8656_2 (SK19174) (ND1)

TXA&M_NRI_8437_1 (COI)

TXA&M_NRI_8602_1 (SK19168) (COI)

TXA&M_NRI_8602_3 (SK19170) (COI)

TXA&M_NRI_8610_1 (SK19171) (COI)

TXA&M_NRI_8584_3 (SK19167) (COI)

TXA&M_NRI_8656_3 (SK19175) (ND1)

UA_20703 (COI)

TXA&M_NRI_8610_2 (SK19172) (COI)

UA20703 (ND1)

BM_19581 (ND1)

TXA&M_NRI_8602_2 (SK19169) (COI)

TXA&M_NRI_8584_1 (SK19165) (COI)

ANSP_397246 (28S)

TXA&M_NRI_8122_2 (COI)

JBFMC_10006_5 (COI)

ANSP_A12728 (28S)

Page updated: 08:28:52 Sun 07 Sep 2025

 
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