Fewkes, 1882
Calycopsidae with unbranched radial canals; with centripetal canals; gonads transversely folded, often forming 8 adradial rows; marginal tentacles of similar structure with cnidocysts only on the terminal knob and with adnate base.
Calycopsis typa
Calycopsis borchgrevinki
Calycopsis papillata
Calycopsis bigelowi
Calycopsis chuni