Scylax of Caryanda: Carian sailor in the service of King Darius of Persia (c.515 BC).
He is known to us from Herodous, Histories, Book 4, §33—

The greater part of Asia was explored by Darius, who desired to know more about the river Indus, which is one of the two rivers in the world to produce crocodiles. He wanted to know where this river runs out into the sea, and sent with his ships ... Scylax, a man of Caryanda.

Scylax, which is derived from skyllo, “to rend, rip, tear”, is probably a nickname inspired on the crocodiles he was sent to investigate.

A later so-called Scylax (4th — 3rd Century BC) is credited with a Periplus, a clockwise circumnavigation of the Mediterranean and Black Sea, starting in Iberia and ending in West Africa, beyond the Pillars of Hercules. His work was appended to that of his predessesor, whence his name. He mentions the various Illyrian peoples on both shores of the Adriatic sea, noticeably, the presence of the of the Lotophagoi near the town of Epetium, close to Split.