Louisiana red crayfish
Procambarus clarkii (Girard)


Adults of Procambarus clarkii are typically dark red in color. Juveniles are often more grey. The claws are narrow and long and often covered in tubercles. The areola, which runs along the carapace is extremely narrow and is not separated by a space. The rostrum (crown-like structure above the eyes) is deeply excavated and has lateral spine near the tips.
Adult length: ~2.25 to 4.75 in. (5.7-12.1 cm)
Very abundant in standing bodies of water, ponds, swamps, sloughs, sluggish ditches and slowly flowing streams. It tends to prefer muddy or sandy substrates where there is plenty of organic debris, such as leaves, logs, sticks, etc.

Selected Images


EDDMapS Distribution

EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org

State Regulated List

State Regulated List - This map identifies those states that list this species on their regulated list. For more information, visit Invasive.org

Taxonomic Rank

Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Malacostraca
Order: Decapoda
Family: Cambaridae
Subfamily: Cambarinae
Genus: Procambarus
Subject: Procambarus clarkii (Girard)