Bathydorus poculum sp. nov., holotype NIWA 126338 spicules A prostal diactin, whole and enlarged end B hypodermal pentactin, whole and enlarged spicule centre, tangential and proximal ray ends C choanosomal diactin, whole and enlarged end D stauractine dermalium, whole and enlarged ray end E pinular hexactine atrialium, whole and enlarged ray end F oxyhexaster G enlarged whole primary and secondary ray (left) and centre of spicule showing smooth primary and ornamentation of spines on secondary rays (right) H hemioxyhexaster I hemioxystauraster.