It is a deep water species and is found on the seabed in western parts of the Pacific Ocean at depths of 200 to 800 metres (660 to 2,620 ft).

Other distinguishing characteristics include hollow spines tipped with hoof-like structures and simple mouthparts.

[2] Echinoderms in this order were known only as fossils having been found in deposits such as the chalk beds of southern England dating back to the Cretaceous era.

[3] Calveriosoma gracile is a scavenger and feeds on algal material and other organic detritus that sinks to the sea floor.

Little is known of its behaviour and life cycle[3] but it is likely to have yolky, lecithotrophic eggs that float towards the surface before falling back to the seabed as is the case in its more studied relative, Phormosoma placenta.