Occurrence of Pleurobranchus testudinarius Cantraine, 1835 in Iskenderun Bay, Turkey (Southern Mediterranean).

One specimen of Pleurobranchus testudinarius Cantraine, 1835 was photographed during a SCUBA diving expedition on October 25th, 2018 at 15 meter of depth from Kaleköy (Arsuz), Iskenderun Bay. Although, P. testudinarius has distributed in the Mediterranean Sea and reported from the western Mediterranean coast of Turkey, the present study is the first confirmed report of the species from southern Mediterranean coast of Turkey. Besides, this report is the first observation for the location and fills another gap in the distribution range of P. testudinarius. [ABSTRACT FROM AUTHOR]