Leviticus 11:29-30

These also shall be unclean unto you among the creeping things, &c.— Dr. Shaw well observes, that this expression, creeping things that creep, or which bring forth abundantly upon the earth, (see Genesis 1.) being descriptive of reptiles, with what propriety can we place among them the weasel, the mouse, the ferret, or the mole, which are no greater breeders than a variety of others of the less viviparous quadrupeds? for the tortoise, the camelion, the lizard, and the snail, (the slug rather, or the lymax,) are animals of a quite different nature, habit, and complexion, having all of them smooth skins, and are likewise oviparous; whereas the others partake altogether of such actions and characteristics as are peculiar to the hairy,—viviparous,—unclean quadrupeds, which have paws for fingers, and would of course be included among them. Instead, therefore, of the weasel, &c. may we not with propriety join to this class the toad, the snail, or cochlea terrestris, the skink, (or κροκοδειλος ο χερσαιος LXX.) and the crocodile, or some other oviparous animals of the like nature and quality? See Travels, p. 421. Dr. James takes what we render ferret, for the frog, and with this the name agrees; for it literally signifies, the cryer, alluding to the croaking of this reptile. He understands the four following words of different kinds of lizards, and observes, that all these reptiles are extremely subject to putrefaction, as are reptiles of almost every kind. The smell of these, when putrified, is extremely offensive; and hence we must conclude their salts to be highly exalted, and their juices alkalescent to a great degree.