Diagnosis
provided by World Register of Marine Species
Head bilobed and divided by a prominent median cleft and laterally produced into two tentacles behind which are prominent eye stalks. Siphonal appendages absent or very weakly developed. No operculum. Tubular salivary glands separated from the racemose salivary gland. Radula triserial with a central row of small tricuspid teeth and small unicuspid laterals.
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