Comitas exstructaComitas exstructa is a species of sea snail, a marine gastropod mollusc in the family Pseudomelatomidae.DescriptionThe length of the shell attains 24 mm, its diameter 7 mm. It is a non-broadcast spawner without a trocophore stage.DistributionThis marine species occurs off the Nicobar Islands at depths of more than 800 m.