Portunidae is the most successful family in the colonization of the Mediterranean coasts (Brockerhoff and McLay, 2008). In fact, among the 54 Brachyura listed by Galil et al. (2015), 14 species belong to the former family with 6 species in the genus Charybdis. In the Mediterranean Sea, Charybdis (Gonioinfradens) paucidentatus (A. Milne Edwards, 1861) was recorded for the first time from Rhodes Island, Aegean Sea, Greece (Corsini-Foka et al., 2010), where invasive properties have been observed (Corsini-Foka et al., 2014), followed by a record from the