Pterois

Pterois, also known as lionfish, is a genus of venomous marine fish. They are found mostly in the Indo-Pacific. 
"Pterois" is characterized by warning coloration with red, white, creamy, or black bands, showy pectoral fins and venomous spiky fin rays. "Pterois" are classified into a number of different species, but "Pterois radiata", "Pterois volitans" and "Pterois miles" are the most commonly studied. "Pterois" are popular aquarium fish and are readily used for cooking.
"Pterois" are about 2.44in (6.2cm) to 16.69in (42.4 cm) with typical adults measuring 14.96in (37.9 cm) . They weigh an average of 1.05 lbs (0.47 kg).