FAMILY CHTENOPTERYGIDAE GRIMPE, 1922
(THREE SPECIES IN ONE GENUS)
Diagnosis: Bathyteuthoidea with buccal connectives attaching to the ventral border of ventral arms; with six or more sucker series in dorsal, dorsolateral and ventrolateral arms; with eight or more sucker series in tentacles, with tentacle club ventrally expanded; with accessory nidamental glands; fins long, with muscular ribs attached to the dorsolateral surface of the mantle; distinct paralarva with disc-shape tentacle clubs covered with minute suckers.