Slosarczykovia circumantarctica is a relatively large species of squid attaining a mantle length of 170 mm,[3] the mantle having a long and slender form with rhomboid shaped fins placed posteriorly.

The tentacles have the largest suckers running from the proximal manus and these are about three quarters in diameter of largest sucker from proximal dactylus.

In squid with a mantle length of greater than 60mm the mantle, fins, head and arms are covered in a fibrous, net like covering of the integument.

[4] Slosarczykovia circumantarctica was described from a type specimen collected off Wilkes Land, Antarctica and it is thought to have a distribution throughout the seas around Antarctica.

[1] The generic name Slosarczykovia honours was derived from the surname of the late Dr Wieslaw Slósarczyk, who was responsible for collecting almost all the specimens used to describe the species while the specific name circumantarctica refers to the circumpolar distribution of the species in the Southern Ocean.