miRNA families that are unique for Gastropoda:

miR-4272	miR-3353	miR-466d	miR-4262	miR-4255
miR-219	miR-3144	miR-2035	miR-3407	miR-15b*
miR-723*	mir-67	miR-624*	miR-526a	miR-1582