ear, spike, capitulum
['seashore, coast, seacoast, sea-coast', 'vine snake', 'cockroach, roach', 'spiny lobster, langouste, rock lobster, crawfish, crayfish, sea crawfish', 'quilt, comforter, comfort, puff', 'chambered nautilus, pearly nautilus, nautilus', 'sea cucumber, holothurian']