Stonefish: Stonefish, (Synanceia), any of certain species of venomous marine fish of the genus Synanceia and the family Synanceiidae, found in shallow waters of the tropical Indo-Pacific. Stonefish are sluggish bottom-dwelling fish that live among rocks or coral and in mudflats and estuaries. Thickset fish
: https://www.britannica.com/animal/stonefish-Synanceiidae-family