De Haan, 1841
All pereiopods, or at least the first four, with true chelae. First pair of pereiopods long and slender, more than twice as long as the second pair. Carapace flattened. Eyes immovable, not protruding above surface of carapace, and without pigment. Tail-fan entirely calcified and with telson triangular, pointed.
This superfamily consists of four families, three of which contain only fossil species. The fourth, Polychelidae Wood-Mason, 1875 is the only one with recent representatives.