Orconectus

Text by Roger F. Thoma

Orconectes (Gremicambarus) rhoadesi
This is a species closely related to Orconectes (G.) immunis. O. rhoadesi can be told from O. immunis easily because rhoadesi lacks an excision at the base of the dactyl (movable finger) of the chela. This is the only time I have collected this species so I don't know much about it's life history. This specimen came from a small stream in northern Tennessee near Franklin. We also collected O. (Procericambarus) durelli and Cambarus (Depressicambarus) striatus. Hobbs Jr. 1989 reports this species from "Cumberland, Duck, and Tennessee basins in central Tennessee."
 

 

 

 

  I have included line drawings by Dr. Horton H. Hobbs Jr., 1989, that illustrate the chela differences for the two species 

Orconectes durella

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Orconectes barranensis

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Orconectes compressus

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Orconectes spinosus

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