[Image of a lionfish with labels for the following parts: dorsal fin, pectoral fin, pelvic fin, anal fin, caudal fin, operculum, eye, mouth, and lateral line.]
Dorsal fin: The dorsal fin is located on the back of the lionfish. It is made up of 13 spines and 10-11 soft rays. The spines are venomous and can deliver a painful sting.
Pectoral fins: The pectoral fins are located on the sides of the lionfish. They are made up of 18-19 soft rays. The pectoral fins help the lionfish to maneuver and swim.
Pelvic fins: The pelvic fins are located on the underside of the lionfish. They are made up of 6 soft rays. The pelvic fins help the lionfish to balance and stay upright.
Anal fin: The anal fin is located on the underside of the lionfish, behind the pelvic fins. It is made up of 3 spines and 8 soft rays. The anal fin helps the lionfish to slow down and stop.
Caudal fin: The caudal fin is located at the end of the lionfish's body. It is made up of 15 soft rays. The caudal fin helps the lionfish to swim and move forward.
Operculum: The operculum is a bony flap that covers the gills of the lionfish. It helps to protect the gills and allows water to flow over them.
Eye: The eyes of the lionfish are located on the top of its head. They are large and help the lionfish to see its prey.
Mouth: The mouth of the lionfish is located at the front of its head. It is large and has many small teeth. The teeth help the lionfish to catch and hold its prey.
Lateral line: The lateral line is a sensory system that runs along the side of the lionfish's body. It helps the lionfish to detect vibrations in the water.