Powellisetia comes is an extinct species of marine gastropod mollusc in the family Rissoidae.[1] First described by Harold John Finlay in 1926, it is known to have lived in New Zealand during the early Miocene.
Finlay described the species as follows:
Fossils of the species have only been identified in New Zealand.[1] The holotype was collected from the Mount Harris Formation near Pukeuri, Otago, which dates to the early Miocene era.[2]