About Maguimithrax spinosissimus (Lamarck, 1818)
Maguimithrax spinosissimus (Lamarck, 1818) has a reddish-brown carapace and walking legs. Its claws are smooth, purplish gray, with a single row of nodules along the outer edge and blunt claw tips. Its walking legs are covered with numerous short spines and nodules. It is the largest native crab species native to the Atlantic, reaching up to 3 kg in weight and 18 cm in carapace length. This species is distributed from North Carolina to Venezuela, where it inhabits caves and reef underhangs, ranging from the shallow intertidal zone down to depths of up to 200 m. In 2015, Klompmaker et al. established the separate genus Maguimithrax, and designated this species as its type species.