FAMILY BATHYTEUTHIDAE PFEFFER, 1900

(SIX SPECIES IN ONE GENUS)

Diagnosis: Bathyteuthida with buccal connectives attaching to the dorsal border of ventral arms; with two sucker series in dorsal, dorsolateral and ventrolateral arms increasing distally to four with ontogeny; with anteriorly oriented semitubular eyes; with small, separated and paddle-like fins having anterior and posterior lobes; sometimes with single photophores at the bases of dorsal, dorsolateral and ventrolateral arms; egg masses brooded by the female.