Cross reference
Leviticus 11:41
41 Everything which goes flat on its body on the earth is disgusting, and is not to be used for food.
Leviticus 11:29
29 And these are unclean to you among things which go low down on the earth; the weasel and the mouse and the great lizard, and animals of that sort;
Leviticus 11:20
20 Every winged four-footed thing which goes on the earth is disgusting to you;
Leviticus 11:23
23 But all other winged four-footed things which go on the earth are disgusting to you.