Summary: Dorsal fin base long, extending almost the length of the back. Dorsal fin divided into
3 well-separated parts (separate fins), bearing about 13, 18 and 16 rays respectively. First part
originating posterior to head (predorsal distance greater than about one-third of total length); its length
about one-half of head length; ends of rays in first part reaching second part when depressed, longest
ray fitting three times into head length. No spinous rays present.