From the Latin for "4-footed", it's an animal with 4 feet
Of Swimming Animals, or Fishes [PAR] ... the Eel; others are called in Latin Saxatiles, because they delight in Stony 
Places, ... Fishes therefore are generated by Copulation as all other Oviparous 
Animals are: ... it hath the Tail of a Swine, with short Feet, and a divided Hoof like 
a Hog.