That creeps (as a reptile).

(a) n. something that creeps along the ground; (frequently derogatory) a creeping, cringing person; (also) a small person or thing; (b) adj.…

That crawls (literal and figurative); see the verb.

Of an animal: creeping, crawling. Obsolete. rare.

Of an animal: creeping, crawling. Cf. reptant, adj. 2. Frequently poetic. Obsolete.

Crawling on the ground.

Zoology. Of an animal (now spec. a decapod crustacean): creeping, crawling.

Of the nature of a reptile; that creeps or crawls; (figurative) underhand, devious.

Of a person or animal: crawling (see crawl, v.1 1a). rare.