Find out the incorrect match with regard to body divisions.
Periplaneta - Head, throax and abdomen
Antedon - Head, muscular foot and visceral hump
Balanoglossus - Proboscis, collar and trunk
Pheretima - Pre-clitellar, clitellar and post clitellar regions.
Antedon (Sea lily) is an echinoderm. Head, muscular foot and visceral hump are the body divisions in molluscs.