miRNA families that are unique for Euechinoidea:

miR-4145	miR-4006a	mir-933	miR-1993	mir-1280
miR-1334	miR-2180	miR-4251	miR-3276	miR-516a
miR-2693	mir-982	mir-19	miR-4113	miR-3664
miR-4339	miR-2399	miR-1342	miR-2886	miR-1658
miR-694	miR-2500