▁shell ▁is ▁ax ial ly ▁sculpt ured ▁by ▁numerous ▁sl ender ▁and ▁continuous ▁r ible ts . ▁The ▁a pert ure ▁ ▁measures ▁about ▁a ▁third ▁of ▁the ▁length ▁of ▁the ▁shell . ▁The ▁short ▁si ph onal ▁canal ▁is ▁wide . ▁The ▁anal ▁sin us ▁is ▁deep ▁and ▁broad , ▁separated ▁from ▁the ▁body ▁wh or l ▁by ▁a ▁call os ity . ▁A ▁brown ▁band ▁on ▁the ▁peri ph ery ▁is ▁a ▁usual ▁feature . H ed ley , ▁Charles ▁( 1 9 2 0 ), ▁A ▁revision ▁of ▁the ▁Australian ▁T urr idae ; ▁Records ▁of ▁the ▁Australian ▁Museum , ▁vol . ▁XIII ▁nr . ▁ 6 , ▁Sydney ▁ ▁Species ▁Species ▁within ▁the ▁genus ▁I red ale a ▁include : ▁ ▁I red ale a ▁ad en ensis ▁Mor ass i ▁& ▁Bon fit to , ▁ 2 0 1 3 ▁ ▁I red ale a ▁ag ath a ▁( W . H . ▁D all , ▁ 1 9 1 8 ) ▁ ▁I red ale a ▁bal te ata ▁( A . A . ▁G ould , ▁ 1 8 6 0 ) ▁ ▁I red ale a ▁incl in ata ▁( S ower by ▁III , ▁ 1 8 9 3 ) ▁ ▁I red ale a ▁mac le ay i ▁( B raz ier , ▁ 1 8 7 6 ) ▁ ▁I red ale a ▁pup o idea ▁( H . ▁Adams , ▁ 1 8 7 2 ) ▁▁ ▁I red ale a