BioInvasions Records, cilt.11, sa.2, ss.530-536, 2022 (SCI-Expanded)
© Kebapcioglu and Cinbilgel.The whipfin ponyfish Equulites leuciscus (Günther, 1860) was recorded for the first time in the Mediterranean Sea. The species is widely distributed in the Indo-West Pacific and has been recognized as one of the most widespread species of ponyfishes. E. leuciscus has wide and oval body shape, very elongated second dorsal spine, and yellow dots adjacent to its lateral line. One specimen was caught at a depth of 28 m, on September 2021, in the Gulf of Antalya. The specimen was 101.6 mm in total length (TL). The length of second dorsal spine was 26.8 mm and the body depth (BD) to standard length ratio was 40.6%. The probable reason that E. leuciscus was not identified in the Mediterranean until now is that the species has no economic value and is very similar to Equulites klunzingeri.