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Pfeffer, 1908

Mantle wide, robust, cylindrical in anterior, conical in posterior half. Arms with 2 tentacles with 4 rows of suckers, hooks absent. Buccal membrane with 8 lappets, connectives to 4th arms attached dorsally. Funnel cartilage straight, elongated. Gladius narrow, with two widenings, in the middle and near posterior end. Large diverse photophores on ventral side of eyeball, inside of mantle cavity, sometimes on arms, tentacles and body surface. 2 subfamilies, 4 genera, 5 species. Mostly nerito-oceanic squids. Two species in the South Atlantic.

Planctonic stages recorded for:

Lycoteuthis diadema
Selenoteuthis scintillans

Family Lycoteuthiade