ahiparana, Turritella Powell, 1927

Turritella (Zeacolpus) ahiparana Powell, 1927: 297 (pl. 34, fig. 4).

Gastropoda, Turritellidae

Probable paratype: MZSP 101757 (Fig. 5 C–D).

Locality: New Zealand, Northland, Ahipara, ~ 42 m depth.

Preservation: Dry.

Remarks: The holotype, as well as several paratypes of Z. ahiparana, were deposited in Powell’s private collection, and only the former was figured and measured. The probable paratype listed above belonged to the private shell collector Ralph Humes, who had a large private assemblage in the late 1950s. His collection contained 850 lots, including types. The Ralph Humes Collection label bears a handwritten paratype status annotation. This species was recombined as Stiracolpus ahiparanus by Beu (2011).