Endangered
Slenderclaw Crayfish
Cambarus cracens
Slenderclaw Crayfish is a crayfish in the family Cambaridae (order Decapoda) — Cambarus cracens, recorded as Endangered and tied to United States.
The crayfish
Northern hemisphere crayfishes are freshwater decapods. Many US species are tied to a single drainage or cave system.
Decapods are ten-legged crustaceans — crabs, shrimps, and crayfishes. Freshwater species here are usually tied to a drainage.
Range and habitat
The distribution is limited with occurrences in rivers and lakes in parts of North America.
GBIF currently lists 28 occurrence points. Those points follow where people logged the taxon — museum drawers and surveys included — not a closed range boundary.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
Diet
Crayfishes hide under rock or in burrows and feed as omnivores. Stream species need cold, oxygenated water and an intact bank.
Freshwater crayfishes and crabs walk the bed. Dams, silt, and introduced species cut a drainage into fragments they cannot cross.
In crisis
Slenderclaw Crayfish is Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the Norwegian Wikipedia article on Cambarus cracens, translated and retold in English, plus Wikidata item Q4468113 and GBIF occurrence geography. Family and order context is original field-guide writing about the group. Wikipedia text is CC BY-SA. Not an IUCN assessment. Confirm status and range on iucnredlist.org.
