It is a relatively large spider with a body length reaching 6–7 cm, and has a commensal mutualistic with the Microhylid Frog Chiasmocleis ventrimaculata.
High-spined commensal hydroids grow as a fuzzy-looking orange coat usually on the shell of a marine snail, the scaly dogwhelk Nucella squamosa.
The Emperor shrimp, Periclimenes imperator, is a commensal that is commonly found living on Hexabranchus sanguineus.