They are registered for the first time in the South Brazilian coast, the crabs Mithrax hispidus (Herbst, 1790) and Mithrax tortugae Rathbun, 1920, which previous Southern limit of distribution were at São Paulo State and now it is extended to the Santa Catarina State coast line.
Decapoda; Mithrax hispidus; Mithrax tortugae; Santa Catarina; new records