Aside from some lithodid crabs which have not too long ago been present in the Antarctic Bellingshausen Sea (Klages et al., 1995; Arana and Retamal, 2000), reptants are not known from high polar areas, the place drinking water temperature at the seafloor drops permanently down below about 0°C. Encyclopaedia Britannica's https://www.jowissa.com/products/roma-swiss-ladies-watch-j2-307-l