Occurrence of a lessepsian swimming crab, portunus segnis (Crustacea: Decapoda), in southern aegean sea, turkey [Presenza del granchio nuotatore lessepsiano, portunus segnis (Crustacea: decapoda), nel mar egeo meridionale, turchia] [Pojavljanje lesepske plavajoce rakovice, portunus segnis (Crustacea: decapoda), v juznem egejskem morju, turcija]

###EgeUn###On 19 June 2018, two specimens of Portunus segnis (Forskål, 1775) were observed at a fish market in Urla, Izmir. According to the fishmonger, these blue swimming crabs had been caught incidentally with a gill net in the Akköy Lagoon, Didim in the southeastern Aegean Sea. This paper presents a new record confirming a northward extension of the range of P. segnis in the Aegean Sea. © 2019, Historical Society of Southern Primorska of Koper. All rights reserved