- Clubs with suckers only.
- Tentacular stalks with two series of suckers and pads nearly to stalk base.
- Funnel valve absent.
- Funnel organ: Dorsal pad with 3 slender papillae.
- Funnel extremely large.
- Tubercles absent from funnel-mantle fusion.
- Fins paddle shaped.
- Fins insert on short rostrum of gladius which projects dorsally in advance of mantle apex (photographs below).*
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