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iNat·71071SpeciesAnimalia0 field observations
  1. Animals
  2. ›Arthropods
  3. ›Crustaceans
  4. ›Typical Crustaceans
  5. ›Malacostracans
  6. ›Decapods, Isopods, and allies
  7. ›Decapods and Krill
  8. ›Decapods
  9. ›Crabs, Lobsters, Shrimps, and Allies
  10. ›Crayfishes and Lobsters
  11. ›Northern Hemisphere Crayfishes
  12. ›Astacid Crayfishes
  13. ›Pacifastacus
Shasta Crayfish
Plate 1 of 3. (c) Pacific Southwest Region U.S. Fish and Wildlife Service, some rights reserved (CC BY) · via iNaturalist
IUCN CR · Critically endangered

Shasta Crayfish

Pacifastacus fortis

Pacifastacus fortis (known as the Shasta crayfish or placid crayfish) is an endangered crayfish species endemic to Shasta County, California, where it is found only in isolated spots on the Pit River and Fall River Mills.

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Where it lives

Recorded sightings

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geo-referenced records in GBIF, from museums, herbaria and field observers.

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In the stacks

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Every page naming Pacifastacus fortis in the Biodiversity Heritage Library →

This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 71071.