Critically Endangered
Procambarus regiomontanus
Procambarus regiomontanus
The regio acocil, or acocil, or freshwater crab is a decapod crustacean of the family Cambaridae.
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
It is a freshwater species with a lentic habitat. It is a species endemic to Nuevo León and Tamaulipas in Mexico, and is in danger of extinction (P) in NOM-059-SEMARNAT-2010 and in critical danger (CR) by the IUCN Red List..
GBIF currently lists 133 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.
Habits
The acociles are nocturnal. At night they wander in search of food and to reproduce.
In crisis
It is a species endemic to Nuevo León and Tamaulipas in Mexico, and is in danger of extinction (P) in NOM-059-SEMARNAT-2010 and in critical danger (CR) by the IUCN Red List. It is in danger of extinction due to causes such as pollution, the loss of its habitats and the introduction of exotic species, such as the red acocil (Procambarus clarkii)..
Procambarus regiomontanus is Critically 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 Spanish Wikipedia article on Procambarus regiomontanus, translated and retold in English, plus Wikidata item Q4479907 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.



