-
simple cirri: eye (long in male) & napepectoral 12, central rays v longpelvic: long, reaches center A
-
cirri - simple &/or branched: eye & napeD: 0-1 soft rays, front high, deep notch behind 3rLL complete, archedoperculum with spine
-
cirri: simple, nostril, nape & eyesD XVIII-XXI, 6-10, front not high, notch after spinesA: male - 1st spine long, free, = sex organLL: continuous, arched then straight 12-18 + 18-25