Channichthys richardsoni, the robust icefish, is a demersal species of crocodile icefish endemic to the shelf waters of the Kerguelen Islands in the Southern Ocean. It lives at depths of 126–310 metres (413–1,017 ft). This heavy-bodied species is dark grey to brown in coloration and has 3-4 dark cross bars on its body. Narrow dark stripes (up to 6) are present on the caudal fins and pelvic fins. It is a piscivorous (fish-eating) species. Maturity is reached at 29–31 centimetres (11–12 in) TL in females. Spawning occurs from autumn to early winter.