XXsel-skin: The rendering of the Revised Version (British and American) (Ex 25:5; Ezek 16:10) for `or tachash, the Revised Version margin "porpoise-skin," the King James Version "badgers skin." A seal, Monachus albiventer, is found in the Mediterranean, though not in the Red Sea, but it is likely that tachash means the dugong, which is found in the Red Sea.
See BADGER; PORPOISE.