- a puffer, Lagocephalus laevigatus.
- a chimaera, Chimaera monstrosa.
- a large chimaera, Chimaera monstrosa, common in European seas, with separate caudal and anal fins and a long whiplike tail
- any of the spiny-finned tropical marine fishes of the family Siganidae of Indo-Pacific waters. They have a rabbit-like snout and spines on the pelvic or ventral fins