Leviticus 11:42

Whatsoever goeth upon the belly - i. e. all footless reptiles, and mollusks, snakes of all kinds, snails, slugs, and worms. “Whatsoever goeth upon all four;” i. e. “creeping things,” or vermin; such as the weasel, the mouse or the lizard. Whatsoever hath more feet; i. e. all insects, except the locust family (Leviticus 11:22 note), myriapods, spiders, and caterpillars.