The First Record of Geryonia proboscidalis (Forskål, 1775), (Cnidaria:Hydrozoa) on the Coasts of Gökçeada, the Aegean Sea, Turkey

The present study represents the first record of Hydrozoan medusae Geryonia proboscidalis off of Gökçeada island in June 2021. Although this species is found in the Mediterranean, it is the first record specifically in the coastal areas of Gökçeada island. Holidaymakers are extremely irritated by the sting of Geryonia proboscidalis, especially with its sudden accumulation in the coastal areas of Gökçeada island