Further records of Callinectes sapidus (Rathbun, 1896) (Decapoda, Brachyura, Portunidae) in the Strait of Sicily

Five specimens of the invasive American blue crab Callinectes sapidus were caught from October 2018 to December 2019 off the Mazara del Vallo harbour, Strait of Sicily. This note documents further records of the species in the Strait of Sicily and its settlement in the area. In addition, an update of the spatial distribution of C. sapidus in the Mediterranean Sea was provided.