miRNA families that are unique for Ascidiacea:

miR-4156	miR-4186	miR-4142	miR-3326	miR-1657
miR-4115	mir-2567	miR-2696	mir-239	miR-1709
miR-4087	miR-4216	miR-4219	miR-788*	miR-4180
miR-4098	miR-3612