Described and putative morphospecies of Rhagada from the Dampier Arhcipelago. Boxes at the same hierachical level represent alternative states of a common morphological character, descibed above each box, so that species in the same box share the same character state. Characters marked with an asterisk have been added to incorperate the undescribed forms into the existing taxonomy (see Methods). D = shell diameter, H = shell height. Shells are shown at a common scale.