The flakes, or parts, which stick out, or hang loose, and are ready to fall from other fishes or creatures. Of his flesh: the word flesh is used of fishes also, as Leviticus 11:11 1 Corinthians 15:39. They cannot, without difficulty, be moved, to wit, out of their place, or from the other members of the body.
Related Commentaries of Job 41:23
Job 41:23
23 The flakesd of his flesh are joined together: they are firm in themselves; they cannot be moved.