Benhamipolynoe cairnsiBenhamipolynoe cairnsi is known from the south-west Pacific Ocean from depths of about 400–500mDescriptionBenhamipolynoe cairnsi has 10 pairs of elytra and the preserved specimens studied thus far are not known to be pigmented.Biology and EcologyBenhamipolynoe cairnsi has a commensal relationship with the stylasterid coral Conopora adeta.