How do bass move?

Bass (Lophiiformes), commonly called anglerfish, are a group of about 350 species of bony fish found in the world's oceans. All bass species have a modified dorsal fin ray (the esca), which is usually used to lure prey.

Adult bass are usually sedentary, lying in wait on the sea floor for prey. They use camouflage and the esca to attract prey, which they then swallow whole. Bass vary in size from the tiny anglerfish, which is about 1 inch (2.5 centimeters) long, to the giant anglerfish, which can grow up to 4 feet (1.2 meters) long and weigh over 200 pounds (91 kilograms).

Locomotion

Bass move slowly and deliberately using their pectoral and pelvic fins to crawl along the sea floor. Some species of bass also have a pair of fleshy "legs" located near their tail that they can use to help them walk.

Pelvic fins

Bass have two pelvic fins located on the ventral side of their body, just behind the pectoral fins. The pelvic fins are typically smaller than the pectoral fins and are used to help the fish maintain stability while swimming or crawling.

Pectoral fins

Bass have two pectoral fins located on the dorsal side of their body, just behind the operculum. The pectoral fins are typically larger than the pelvic fins and are used to help the fish swim.

Legs

Some species of bass also have a pair of fleshy "legs" located near their tail. These legs are not true legs, but are instead modified pelvic fins. The legs are used to help the fish walk along the sea floor.