Except for some lithodid crabs that have a short while ago been found in the Antarctic Bellingshausen Sea (Klages et al., 1995; Arana and Retamal, 2000), reptants are certainly not recognized from high polar regions, where water temperature on the seafloor drops completely underneath about 0°C. This dictionary definitions page https://www.jowissa.com/products/magic-facet-pendant-bracelet-js-0084