Bispira volutacornis, a sabellid polychaete, is an epibenthic filterfeeder. Its conspicuous appearance makes it a notable member of the marine hardbottom communities around Ireland and Britain. Bispira volutacornis is credited with having a 'key role' in certain hard bottom communities. The literature on Bispira volutacornis prior to this study was restricted almost exclusively to faunal records and descriptions of the external morphology, with knowledge of its biology and ecology being very fragmentary and this paucity of information prompted the current study. This study investigates...