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60 lithoglyphidae species
Fluminicola virens
Fluminicola fuscus
Fluminicola coloradoensis
Fluminicola insolitus
Pristinicola hemphilli
Fluminicola multifarius
Somatogyrus tryoni
Fluminicola fremonti
Fluminicola minutissimus
Fluminicola nuttallianus
Somatogyrus substriatus
Fluminicola gustafsoni
Somatogyrus georgianus
Clappia umbilicata
Somatogyrus coosaensis
Somatogyrus crassilabris
Somatogyrus currierianus
Somatogyrus decipiens
Somatogyrus excavatus
Somatogyrus hendersoni
Somatogyrus hinkleyi
Somatogyrus humerosus
Somatogyrus nanus
Somatogyrus obtusus
Somatogyrus pilsbryanus
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