It is a marine arthropod in the family Iphimediidae.

It was first described in 1955 by Keppel Harcourt Barnard as Cypsiphimedia gibba.

[1] This species is found off the South African coast from the Cape Peninsula to Port Elizabeth, from the subtidal down to at least 25 metres (82 ft).

It is vividly striped in blue and yellow.

The body is hunched so that the head faces downwards.