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Page last updated
Wed 15 May 2019

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!

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North America

North American SubregionsThe region includes all of North America, north of the Mexican Plateau. It is the most most species-rich region in the world, with 303 species (62 genera). The families represented are Unionidae and Margaritiferidae.

North America is composed of five subregions. The Canadian Interior Subregion drains to southern and eastern Hudson Bay and the Arctic (NA1; 10 gen, 13 spp.) The Mississippi-Great Lakes Subregion (NA2; 51 gen, 148 spp.) which includes the Mississippi Basin and the adjacent, formerly glaciated areas of the Great Lakes. The streams draining directly to the Atlantic comprise the Atlantic Slope Subregion (NA3; 22 gen, 63 spp.), which extends from the glaciated portions of eastern Canada and the USA, south to Georgia. The Gulf-Florida Subregion (NA4; 44 gen, 151 spp.) is a real hot-spot of freshwater mussel diversity that occurs from the Rio Grande Basin in Mexico, east to peninsular Florida. West of the continental divide is the Pacific Subregion (NA5; 4 gen, 8 spp.). The Pacific Subregion shares closer affinities with East Asia than the rest of Nearctica.

Endemic species are marked with an asterisk (*).

Canadian Interior Subregion (NA1)
  1. Amblema plicata
  2. Anodontoides ferussacianus
  3. Fusconaia flava
  4. Lampsilis cardium
  5. Lampsilis siliquoidea
  6. Lasmigona complanata
  7. Lasmigona compressa
  1. Lasmigona costata
  2. Ligumia recta
  3. Potamilus alatus
  4. Pyganodon grandis
  5. Quadrula quadrula
  6. Strophitus undulatus
Mississippi-Great Lakes Subregion (NA2)
  1. Alasmidonta atropurpurea*
  2. Alasmidonta marginata
  3. Alasmidonta raveneliana*
  4. Alasmidonta viridis*
  5. Amblema plicata
  6. Anodontoides denigratus*
  7. Anodontoides ferussacianus
  8. Arcidens confragosus
  9. Arcidens wheeleri*
  10. Cambarunio dactylus*
  11. Cambarunio hesperus*
  12. Cambarunio iris
  13. Cambarunio jonesii*
  14. Cambarunio simus*
  15. Cambarunio taeniatus*
  16. Cumberlandia monodonta*
  17. Cyclonaias nodulata
  18. Cyclonaias pustulosa
  19. Cyclonaias tuberculata*
  20. Cyprogenia aberti*
  21. Cyprogenia stegaria*
  22. Dromus dromas*
  23. Ellipsaria lineolata
  24. Elliptio complanata
  25. Elliptio crassidens
  26. Epioblasma ahlstedti*
  27. Epioblasma arcaeformis*
  28. Epioblasma aureola*
  29. Epioblasma biemarginata*
  30. Epioblasma brevidens*
  31. Epioblasma capsaeformis*
  32. Epioblasma cincinnatiensis*
  33. Epioblasma curtisii*
  34. Epioblasma flexuosa*
  35. Epioblasma florentina*
  36. Epioblasma gubernaculum*
  37. Epioblasma haysiana*
  38. Epioblasma lenior*
  39. Epioblasma lewisii*
  40. Epioblasma obliquata*
  41. Epioblasma perobliqua*
  42. Epioblasma personata*
  43. Epioblasma propinqua*
  44. Epioblasma rangiana*
  45. Epioblasma sampsonii*
  46. Epioblasma stewardsonii*
  47. Epioblasma torulosa*
  48. Epioblasma triquetra*
  49. Epioblasma turgidula*
  50. Epioblasma walkeri*
  51. Eurynia dilatata*
  52. Fusconaia cor*
  53. Fusconaia cuneolus*
  54. Fusconaia flava
  55. Fusconaia ozarkensis*
  56. Fusconaia subrotunda*
  57. Glebula rotundata
  58. Hemistena lata*
  59. Lampsilis abrupta*
  60. Lampsilis brittsi*
  61. Lampsilis cardium
  62. Lampsilis fasciola*
  63. Lampsilis higginsii*
  64. Lampsilis hydiana
  65. Lampsilis ovata*
  66. Lampsilis powellii*
  67. Lampsilis rafinesqueana*
  68. Lampsilis reeveiana*
  69. Lampsilis satura
  70. Lampsilis siliquoidea
  71. Lampsilis streckeri*
  72. Lampsilis teres
  73. Lampsilis virescens*
  74. Lasmigona complanata
  1. Lasmigona compressa
  2. Lasmigona costata
  3. Lasmigona holstonia*
  4. Lasmigona subviridis
  5. Leaunio lienosus
  6. Leaunio ortmanni*
  7. Leaunio pataecus*
  8. Leaunio umbrans
  9. Leaunio vanuxemensis*
  10. Lemiox rimosus*
  11. Leptodea fragilis
  12. Leptodea leptodon*
  13. Ligumia recta
  14. Margaritifera falcata
  15. Medionidus conradicus*
  16. Megalonaias nervosa
  17. Obliquaria reflexa
  18. Obovaria arkansasensis
  19. Obovaria olivaria*
  20. Obovaria retusa*
  21. Obovaria subrotunda*
  22. Ortmanniana ligamentina*
  23. Ortmanniana pectorosa*
  24. Paetulunio fabalis*
  25. Pegias fabula*
  26. Plectomerus dombeyanus
  27. Plethobasus cicatricosus*
  28. Plethobasus cooperianus*
  29. Plethobasus cyphyus*
  30. Pleurobema clava*
  31. Pleurobema cordatum*
  32. Pleurobema oviforme*
  33. Pleurobema plenum*
  34. Pleurobema rubrum*
  35. Pleurobema sintoxia*
  36. Pleuronaia barnesiana*
  37. Pleuronaia dolabelloides*
  38. Pleuronaia gibber*
  39. Potamilus alatus
  40. Potamilus capax*
  41. Potamilus ohiensis
  42. Potamilus purpuratus
  43. Ptychobranchus fasciolaris*
  44. Ptychobranchus occidentalis*
  45. Ptychobranchus subtentus*
  46. Pyganodon grandis
  47. Pyganodon lacustris
  48. Quadrula fragosa*
  49. Quadrula quadrula
  50. Reginaia ebena
  51. Sagittunio nasutus
  52. Sagittunio subrostratus
  53. Simpsonaias ambigua*
  54. Strophitus undulatus
  55. Theliderma cylindrica*
  56. Theliderma intermedia*
  57. Theliderma metanevra
  58. Theliderma sparsa*
  59. Toxolasma cylindrellus*
  60. Toxolasma lividum*
  61. Toxolasma parvum
  62. Toxolasma texasiense
  63. Tritogonia nobilis
  64. Tritogonia verrucosa
  65. Truncilla donaciformis
  66. Truncilla truncata
  67. Uniomerus tetralasmus
  68. Utterbackia imbecillis
  69. Utterbackiana suborbiculata
  70. Venustaconcha ellipsiformis*
  71. Venustaconcha pleasii*
  72. Venustaconcha trabalis*
  73. Venustaconcha troostensis*
  74. Villosa vibex
Atlantic Slope Subregion (NA3)
  1. Alasmidonta arcula*
  2. Alasmidonta heterodon*
  3. Alasmidonta marginata
  4. Alasmidonta robusta*
  5. Alasmidonta undulata*
  6. Alasmidonta varicosa*
  7. Anodontoides ferussacianus
  8. Cambarunio iris
  9. Elliptio angustata*
  10. Elliptio arctata
  11. Elliptio cistellaeformis*
  12. Elliptio complanata
  13. Elliptio congaraea*
  14. Elliptio dariensis
  15. Elliptio downiei*
  16. Elliptio fisheriana*
  17. Elliptio folliculata*
  18. Elliptio fraterna
  19. Elliptio hopetonensis*
  20. Elliptio icterina*
  21. Elliptio lanceolata
  22. Elliptio marsupiobesa*
  23. Elliptio producta*
  24. Elliptio roanokensis*
  25. Elliptio shepardiana*
  26. Elliptio spinosa*
  27. Fusconaia flava
  28. Fusconaia masoni*
  29. Lampsilis cardium
  30. Lampsilis cariosa*
  31. Lampsilis dolabraeformis*
  32. Lampsilis radiata*
  1. Lampsilis siliquoidea
  2. Lampsilis splendida*
  3. Lasmigona compressa
  4. Lasmigona costata
  5. Lasmigona decorata*
  6. Lasmigona subviridis
  7. Leptodea fragilis
  8. Leptodea ochracea*
  9. Ligumia recta
  10. Margaritifera margaritifera
  11. Parvaspina collina*
  12. Parvaspina steinstansana*
  13. Potamilus alatus
  14. Pyganodon cataracta
  15. Pyganodon fragilis*
  16. Pyganodon gibbosa*
  17. Pyganodon grandis
  18. Pyganodon lacustris
  19. Sagittunio aldermani*
  20. Sagittunio nasutus
  21. Sagittunio vaughanianus*
  22. Sinanodonta woodiana
  23. Strophitus undulatus
  24. Toxolasma pullus*
  25. Uniomerus carolinianus
  26. Utterbackia imbecillis
  27. Utterbackiana couperiana
  28. Utterbackiana implicata*
  29. Venustaconcha constricta*
  30. Villosa delumbis*
  31. Villosa vibex
Gulf-Florida Subregion (NA4)
  1. Alasmidonta mccordi*
  2. Alasmidonta triangulata*
  3. Alasmidonta wrightiana*
  4. Amblema elliottii*
  5. Amblema neislerii*
  6. Amblema plicata
  7. Arcidens confragosus
  8. Cambarunio nebulosus*
  9. Cyclonaias infucata*
  10. Cyclonaias kieneriana*
  11. Cyclonaias kleiniana*
  12. Cyclonaias necki*
  13. Cyclonaias nodulata
  14. Cyclonaias petrina*
  15. Cyclonaias pustulosa
  16. Cyclonaias succissa*
  17. Cyrtonaias saladoensis*
  18. Cyrtonaias tampicoensis
  19. Disconaias conchos*
  20. Disconaias fimbriata
  21. Ellipsaria lineolata
  22. Elliptio ahenea*
  23. Elliptio arca*
  24. Elliptio arctata
  25. Elliptio chipolaensis*
  26. Elliptio crassidens
  27. Elliptio dariensis
  28. Elliptio fraterna
  29. Elliptio fumata*
  30. Elliptio jayensis*
  31. Elliptio lanceolata
  32. Elliptio mcmichaeli*
  33. Elliptio monroensis*
  34. Elliptio nigella*
  35. Elliptio occulta*
  36. Elliptio pullata*
  37. Elliptio purpurella*
  38. Elliptoideus sloatianus*
  39. Epioblasma metastriata*
  40. Epioblasma othcaloogensis*
  41. Epioblasma penita*
  42. Fusconaia burkei*
  43. Fusconaia cerina*
  44. Fusconaia chunii*
  45. Fusconaia escambia*
  46. Fusconaia flava
  47. Fusconaia mitchelli*
  48. Glebula rotundata
  49. Hamiota altilis*
  50. Hamiota australis*
  51. Hamiota perovalis*
  52. Hamiota subangulata*
  53. Lampsilis binominata*
  54. Lampsilis bracteata*
  55. Lampsilis floridensis*
  56. Lampsilis hydiana
  57. Lampsilis ornata*
  58. Lampsilis satura
  59. Lampsilis siliquoidea
  60. Lampsilis straminea*
  61. Lampsilis teres
  62. Lasmigona alabamensis*
  63. Lasmigona complanata
  64. Lasmigona etowaensis*
  65. Lasmigona subviridis
  66. Leaunio lienosus
  67. Leaunio umbrans
  68. Leptodea fragilis
  69. Ligumia recta
  70. Margaritifera hembeli*
  71. Margaritifera marrianae*
  72. Medionidus acutissimus*
  73. Medionidus parvulus*
  74. Medionidus penicillatus*
  75. Medionidus simpsonianus*
  76. Medionidus walkeri*
  1. Megalonaias nervosa
  2. Obliquaria reflexa
  3. Obovaria arkansasensis
  4. Obovaria choctawensis*
  5. Obovaria haddletoni*
  6. Obovaria unicolor*
  7. Plectomerus dombeyanus
  8. Pleurobema athearni*
  9. Pleurobema beadleianum*
  10. Pleurobema curtum*
  11. Pleurobema decisum*
  12. Pleurobema fibuloides*
  13. Pleurobema georgianum*
  14. Pleurobema hanleyianum*
  15. Pleurobema hartmanianum*
  16. Pleurobema marshalli*
  17. Pleurobema perovatum*
  18. Pleurobema pyriforme*
  19. Pleurobema riddellii*
  20. Pleurobema rubellum*
  21. Pleurobema stabile*
  22. Pleurobema strodeanum*
  23. Pleurobema taitianum*
  24. Pleurobema verum*
  25. Popenaias popeii
  26. Potamilus amphichaenus*
  27. Potamilus inflatus*
  28. Potamilus metnecktayi*
  29. Potamilus ohiensis
  30. Potamilus purpuratus
  31. Pseudodontoideus connasaugaensis*
  32. Pseudodontoideus subvexus*
  33. Ptychobranchus foremanianus*
  34. Ptychobranchus greenii*
  35. Ptychobranchus jonesi*
  36. Pyganodon cataracta
  37. Pyganodon grandis
  38. Quadrula couchiana*
  39. Quadrula quadrula
  40. Reginaia apalachicola*
  41. Reginaia ebena
  42. Reginaia rotulata*
  43. Sagittunio subrostratus
  44. Sphenonaias taumilapana*
  45. Strophitus pascagoulaensis*
  46. Strophitus radiatus*
  47. Strophitus undulatus
  48. Strophitus williamsi*
  49. Theliderma johnsoni*
  50. Theliderma metanevra
  51. Theliderma stapes*
  52. Toxolasma corvunculus*
  53. Toxolasma parvum
  54. Toxolasma paulum*
  55. Toxolasma texasiense
  56. Tritogonia nobilis
  57. Tritogonia verrucosa
  58. Truncilla cognata*
  59. Truncilla donaciformis
  60. Truncilla macrodon*
  61. Truncilla truncata
  62. Uniomerus carolinianus
  63. Uniomerus columbensis*
  64. Uniomerus declivis*
  65. Uniomerus tetralasmus
  66. Utterbackia imbecillis
  67. Utterbackia peggyae*
  68. Utterbackia peninsularis*
  69. Utterbackiana couperiana
  70. Utterbackiana hartfieldorum*
  71. Utterbackiana heardi*
  72. Utterbackiana suborbiculata
  73. Villosa amygdalum*
  74. Villosa vibex
  75. Villosa villosa*
Pacific Subregion (NA5)
  1. Anodonta californiensis*
  2. Anodonta impura*
  3. Anodonta kennerlyi*
  4. Anodonta nuttalliana*
  1. Anodonta oregonensis*
  2. Gonidea angulata*
  3. Margaritifera falcata
  4. Sinanodonta beringiana

Page updated: 16:04:22 Wed 15 May 2019

 
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