Joel Sartore / Photo Ark / Depression crayfish (Cambarus rusticiformis) female, Duck River form, portrait, Tennessee, USA.
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Joel Sartore / Photo Ark / Ambiguous crayfish (Cambarus striatus) portrait, from North Fork Creek, Bedford County, Tennessee, USA.
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Joel Sartore / Photo Ark / Linear cobalt crayfish (Cambarus gentryi) Upper Duck River form, portrait, from Bashaw Creek, Coffee County, Tennessee, USA.
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Joel Sartore / Photo Ark / Linear cobalt crayfish (Cambarus gentryi) juvenile, portrait, from East Fork Cane Creek, Lewis County, Tennessee, USA.
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Joel Sartore / Photo Ark / Ambiguous crayfish (Cambarus striatus) portrait, from East Fork Cane Creek, Lewis County, Tennessee, USA.
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Joel Sartore / Photo Ark / Linear cobalt crayfish (Cambarus gentryi) Lower Duck River form, portrait, from East Fork Cane Creek, Lewis County, Tennessee, USA.
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Joel Sartore / Photo Ark / Prickly cave crayfish (Cambarus hamulatus) portrait, Nashville Zoo, Tennessee, USA. Captive.
