Pfeffer, 1912
Two (longitudinal) or four (in the form of an inverted V) hyaline stripes with cartilaginous tubercles on ventral mantle beginning at sites of mantle-funnel fusion. Funnel fused with head laterally. Funnel valve present (except in Leachia). Eye photophores numerous, in 1-2 arcs. One of the ventral arms hectocotylized in males. Four genera. Three genera and approx. 7 species in the South Atlantic.
Planctonic stages recorded for:
Cranchia scabra
Liocranchia reinhardti
Leachia atlantica