Cambarus robustus (Big water crayfish) - Michigan Natural Features Inventory
Cambarus P. robustus
Zoogeography, taxonomy, and conservation of West Virginia's Ohio River floodplain crayfishes (Decapoda, Cambaridae)
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Research reveals hope for managing invasive red swamp crayfish
Big Water Crayfish (Cambarus robustus) - Species Profile
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Big Water Crayfish (Cambarus robustus) · iNaturalist Canada
Conservation status of North American freshwater crayfish (Decapoda: Cambaridae) from the southern United States - Document - Gale Academic OneFile
Reports - Michigan Natural Features Inventory
Cambarus guenteri, new species. Form I male. Photograph by Guenter
Cambarus - an overview
Cambarus robustus, aka Big river crayfish 7/4/11
Cambarus robustus (Big water crayfish) - Michigan Natural Features Inventory