Marine cephalopod mollusc with moderately elongated mantle. Rhomboid fins, short, whose length is 40 to 45% of the length of the mantle. Large siphon with large opening. Approximately rectangular head. Its dorsal face is covered by very close chromatophores. The arms of the first pair are the shorter and thinner and join the second pair by a delicate membrane at the base. Those of the second pair are larger and do not have membranes that join them to third parties. The third pair is usually the longest and most robust of all. The suction cups are arranged in each arm alternately in two rows. Each suction cup is provided with a chitinous ring. The tentacles are long and moderately thick, being dorsally pigmented. The peak consists of two jaws. The pigmented area of the face on the lower jaw is broad.
- Area 41: the Southwestern part of the Atlantic Ocean
- Area 87: the Southeastern part of the Pacific Ocean
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