Channichthys richardsoni, the robust icefish, is a demersal species of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes.

It is endemic to the shelf waters of the Kerguelen Islands in the Southern Ocean.

[1] The species name is given in honour of the Scottish naturalist John Richardson, who described the first species of icefish Channichthys rhinoceratus, and established the genus Channichthys.

Dark spots and blotches are present on the ventral part of body and head.

[1] It is distinguished from other Channichthys species (to whom it is very similar with) by the moderate size of its eyes, number of gill rakers on the lower arch (6-15), longer snout (approximately equal to half the length of the head) and other characteristics, such as the relatively robust body compared to other Channichthys species (which gave this species its common name) and relatively small eye (in some specimens just reaching 33% of snout length).