Euprotomus iredalei (Iredale's conch)

Endemic to Northern Australia. Uncommon species in the market. It has an exterior which is less shiny and more rugose (as S. vomer vomer), with the body whorl bearing 2 to 4 fairly strong spiral rows of coarse beads or poorly developed knobs below the row of small, somewhat even-sized pointed knobs at the shoulder. Named after Tom Iredale, Sidney, Australia.