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Page last updated
11 November 2014

Unionoida cum Grano Salis

Neotropical Region

Neotropical SubregionNeotropica includes all of South America, north through Central America to the Mexican Plateau. The region is inhabited by 217 species in four families: Unionidae, Hyriidae, Mycetopodidae and Etheriidae.

The Mesoamerica Subregion (NT1; 102 spp.) includes Central America to the Isthmus of Panama. The fauna consists largely unioinid genera, and presumably those various lineages had their origins in the Nearctic Region. We regard Mesoamerica as part of the Neotropical Region due to the observed degree of genus-level endemism.

The remainder of the subregions are portions of South America proper. The Transandean Subregion (NT2; 13 spp.) is the area between the Isthmus of Panama and the Andes Mountains in the northwest. The Amazonas-Orinoco Subregion (NT3; 61 spp.) includes the entire Amazon and Orinoco basins as well as the Guyanas. The Atlantic coastal streams (including the São Francisco) in eastern Brazil comprise the Atlantic-São Francisco Subregion (NT4; 21 spp.). The Paraná-Paraguay Subregion (NT5; 65 spp.) is composed of all the rivers draining via the Rio de la Plata and the coastal streams of Uruguay and southern Brazil. Finally, three species occur in the Patagonia Subregion (NT6).

 

Mesoamerica Subregion (NT1)
  1. Actinonaias computata
  2. Actinonaias coyensis
  3. Actinonaias medellina
  4. Actinonaias moctezumensis
  5. Actinonaias sapotalensis
  6. Actinonaias signata
  7. Actinonaias undivaga
  8. Anodonta lurulenta
  9. Anodontites cylindracea
  10. Anodontites depexus
  11. Anodontites inaequivalva
  12. Anodontites tehuantepecensis
  13. Anodontites tortilis
  14. Anodontites trapesialis
  15. Anodontites trigona
  16. Arotonaias cyrenoides
  17. Arotonaias imbricata
  18. Arotonaias nicaraguensis
  19. Barynaias caldwellii
  20. Barynaias opacata
  21. Barynaias pigerrima
  22. Barynaias plexus
  23. Barynaias sallei
  24. Cyrtonaias explicata
  25. Cyrtonaias livida
  26. Cyrtonaias sapperi
  27. Cyrtonaias tampicoensis
  28. Cyrtonaias umbrosa
  29. Delphinonaias delphinulus
  30. Delphinonaias paludosa
  31. Delphinonaias planivalvis
  32. Delphinonaias scutulata
  33. Disconaias disca
  34. Disconaias fimbriata
  35. Disconaias novileonis
  36. Disconaias panacoensis
  37. Disconaias purpuriata
  38. Friersonia iridella
  39. Martensnaias rubicunda
  40. Megalonaias nickliniana
  41. Micronaias arata
  42. Micronaias fallaciosa
  43. Micronaias granadensis
  44. Mycetopoda siliquosa
  45. Nephritica haricotti
  46. Nephritica poeyana
  47. Nephronaias aeruginosa
  48. Nephronaias aztecorum
  49. Nephronaias calamitarum
  50. Nephronaias championi
  51. Nephronaias copanensis
  52. Nephronaias dysonii
  53. Nephronaias goascoranensis
  54. Nephronaias gundlachi
  55. Nephronaias hermanni
  56. Nephronaias hjalmarsoni
  57. Nephronaias lempensis
  58. Nephronaias macnielii
  59. Nephronaias mellea
  60. Nephronaias oregonensis
  61. Nephronaias plicatula
  62. Nephronaias ravistella
  63. Nephronaias rowellii
  64. Nephronaias rugulosa
  65. Nephronaias sajensis
  66. Nephronaias scamnata
  67. Nephronaias sphenorhyncha
  68. Nephronaias tabascoensis
  69. Nephronaias tempisquensis
  70. Nephronaias yzabalensis
  71. Pachynaias rugososulcata
  72. Pachynaias spheniopsis
  73. Popenaias metallica
  74. Popenaias popeii
  75. Popenaias tehuantepecensis
  76. Potamilus largillierti
  77. Potamilus rovirosai
  78. Psoronaias crocodilorum
  79. Psoronaias distincta
  80. Psoronaias herrerae
  81. Psoronaias kuxensis
  82. Psoronaias martensi
  83. Psoronaias morini
  84. Psoronaias ostreata
  85. Psoronaias semigranosa
  86. Psorula guatemalensis
  87. Psorula percompressa
  88. Psorula profunda
  89. Psorula quadrata
  90. Psorula rudis
  91. Psorula salinarum
  92. Psorula usumasintae
  93. Pyganodon grandis
  94. Reticulatus elvae
  95. Reticulatus reticulatus
  96. Sinanodonta woodiana
  97. Sphenonaias callosa
  98. Sphenonaias colorata
  99. Sphenonaias flucki
  100. Sphenonaias liebmanni
  101. Sphenonaias mexicana
  102. Sphenonaias microdon
Transandean Subregion (NT2)
  1. Acostaea rivolii
  2. Anodontites carinata
  3. Anodontites colombiensis
  4. Anodontites crispata
  5. Anodontites elongata
  6. Anodontites tortilis
  7. Anodontites trapesialis
  8. Anodontites trigona
  9. Castalia ecarinata
  10. Diplodontites cookei
  11. Diplodontites olssoni
  12. Diplodontites pilsbryana
  13. Mycetopoda siliquosa
Amazonas-Orinoco Subregion (NT3)
  1. Anodontites aroana
  2. Anodontites carinata
  3. Anodontites crispata
  4. Anodontites elongata
  5. Anodontites guanarensis
  6. Anodontites infossus
  7. Anodontites leotaudi
  8. Anodontites obtusa
  9. Anodontites pittieri
  10. Anodontites schomburgianus
  11. Anodontites tenebricosa
  12. Anodontites tortilis
  13. Anodontites trapesialis
  14. Anodontites trapezea
  15. Anodontites trigona
  16. Bartlettia stefanensis
  17. Callonaia duprei
  18. Castalia ambigua
  19. Castalia cordata
  20. Castalia crosseana
  21. Castalia multisulcata
  22. Castalia nehringi
  23. Castalia orbignyi
  24. Castalia orinocensis
  25. Castalia stevensi
  26. Castaliella quadrata
  27. Castaliella schombergiana
  28. Castaliella sulcata
  29. Diplodon flucki
  30. Diplodon fluctiger
  31. Diplodon granosus
  32. Diplodon guaporensis
  33. Diplodon guaranianus
  34. Diplodon hylaeus
  35. Diplodon losadae
  36. Diplodon obsolescens
  37. Diplodon rhombeus
  38. Diplodon suavidicus
  39. Diplodon voltzi
  40. Diplodontites cookei
  41. Fossula fossiculifera
  42. Iheringella semisulcata
  43. Lamproscapha ensiformis
  44. Lamproscapha falsa
  45. Leila blainvilliana
  46. Leila esula
  47. Monocondylaea corrientesensis
  48. Monocondylaea costulata
  49. Monocondylaea guarayana
  50. Monocondylaea jaspidea
  51. Mycetopoda pittieri
  52. Mycetopoda siliquosa
  53. Mycetopoda soleniformis
  54. Mycetopodella falcata
  55. Prisodon obliquus
  56. Prisodon syrmatophorus
  57. Tamsiella amazonica
  58. Tamsiella schroeteriana
  59. Tamsiella tamsiana
  60. Triplodon chodo
  61. Triplodon corrugatus
Atlantic-São Francisco Subregion (NT4)
  1. Anodontites moricandii
  2. Anodontites obtusa
  3. Anodontites solenidea
  4. Anodontites trapesialis
  5. Anodontites trapezea
  6. Diplodon aethiops
  7. Diplodon besckeanus
  8. Diplodon dunkerianus
  9. Diplodon ellipticus
  10. Diplodon fontainianus
  11. Diplodon granosus
  12. Diplodon multistriatus
  13. Diplodon pfeifferi
  14. Diplodon rhombeus
  15. Diplodon rhuacoicus
  16. Diplodon rotundus
  17. Diplodon suavidicus
  18. Fossula fossiculifera
  19. Monocondylaea corrientesensis
  20. Monocondylaea franciscana
  21. Mycetopoda siliquosa
Paraná Subregion (NT5)
  1. Anodontites elongata
  2. Anodontites ferrarisii
  3. Anodontites iheringi
  4. Anodontites lucida
  5. Anodontites obtusa
  6. Anodontites patagonica
  7. Anodontites solenidea
  8. Anodontites tenebricosa
  9. Anodontites trapesialis
  10. Anodontites trapezea
  11. Anodontites trigona
  12. Bartlettia stefanensis
  13. Castalia ambigua
  14. Castalia inflata
  15. Castalia martensi
  16. Castalia nehringi
  17. Castalia psammoica
  18. Castalia undosa
  19. Diplodon aethiops
  20. Diplodon berthae
  21. Diplodon burroughianus
  22. Diplodon caipira
  23. Diplodon charruanus
  24. Diplodon delodontus
  25. Diplodon dunkerianus
  26. Diplodon ellipticus
  27. Diplodon expansus
  28. Diplodon fontainianus
  29. Diplodon funebralis
  30. Diplodon granosus
  31. Diplodon gratus
  32. Diplodon greeffeanus
  33. Diplodon guaranianus
  34. Diplodon hildae
  35. Diplodon hylaeus
  36. Diplodon iheringi
  37. Diplodon imitator
  38. Diplodon koseritzi
  39. Diplodon martensi
  40. Diplodon multistriatus
  41. Diplodon parallelopipedon
  42. Diplodon paranensis
  43. Diplodon parodizi
  44. Diplodon paulista
  45. Diplodon peraeformis
  46. Diplodon piceus
  47. Diplodon rhuacoicus
  48. Diplodon rotundus
  49. Diplodon solisianus
  50. Diplodon uruguayensis
  51. Diplodon variabilis
  52. Diplodon vicarius
  53. Diplodon wymanii
  54. Fossula fossiculifera
  55. Haasica balzani
  56. Iheringella isocardioides
  57. Lamproscapha ensiformis
  58. Leila blainvilliana
  59. Monocondylaea corrientesensis
  60. Monocondylaea minuana
  61. Monocondylaea paraguayana
  62. Monocondylaea parchappii
  63. Mycetopoda legumen
  64. Mycetopoda siliquosa
  65. Mycetopoda soleniformis
Patagonia Subregion (NT6)
  1. Anodontites trigona
  2. Diplodon chilensis
  3. Diplodon solidulus

 

 
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