paired fins on the abdomen or chest
Paired fins towards the underside of the fish. Vary in size and shape greatly. In anabantids often elongated. Appear to function as ‘brakes' especially for species which move in a start/stop motion.
either of a pair of fins attached to the pelvic girdle in fishes that help control the direction of movement; correspond to hind limbs of a land vertebrate
Fins on either side of the body, below and often behind the pectoral fins.
Paired fins on sides of the body.
See fins of a fish. How a snail uses its operculum to seal the shell opening
Paired fins located about halfway down the length of a salmon along the abdomen.Their function is to help the fish stop and turn.
Ventral paired fins on a fish