In Greek mythology, Cocalus (Kṓkalos) is a Sicilian king — usually of Camicus (or, in Pausanias, associated with Inycus) — who sheltered Daedalus after Icarus's fall. When Minos tracked the craftsman with a spiral-shell riddle, Cocalus concealed his guest, then (with his daughters, or through Daedalus) killed the Cretan king in the bath with boiling water.
Adapted from Wikipedia, "Cocalus" · CC BY-SA 4.0
I.Host of Daedalus
After escaping Crete, Daedalus landed in Sicily and found protection under Cocalus. Ovid has the king raise an army for his guest; Apollodorus places the refuge at Camicus. Minos hunted city to city with a challenge: thread a spiral shell end to end — a feat only Daedalus could manage.
Cocalus took the shell and secretly gave it to Daedalus, who used an ant bearing a thread. Minos knew his quarry was at Camicus and demanded surrender.
II.Death of Minos
Promising to hand Daedalus over, Cocalus entertained Minos; after the bath the Cretan king was undone — Apollodorus and Hyginus credit Cocalus's daughters (scalding water), while some summaries name Daedalus as the killer. Herodotus knows Minos died violently in Sicania while seeking Daedalus; Pausanias links Cocalus's refusal to a Sicilian–Cretan war.
The atlas id cocalus-sicily is this Sicilian host, not later historical or zoological uses of the name.