Zeacolpus blacki, copyright Te Papa Tongarewa.

Belongs within: Turritellidae.

Zeacolpus is a predominantly New Zealand genus of turritellid gastropods (with Z. bartoni known from the Eocene of Western Australia) characterised by a paucispiral apex of one whorl and a sculpture of spiral cords (Finlay 1927a).

<==Zeacolpus Finlay 1926 [Zeacolpini] P61
    |  i. s.: Z. abscisus [=Turritella abscisa] F27a
    |         Z. albolapis (Finlay 1924) F27a [=Turritella albolapis F27a, T. concava Hutton 1877 (preoc.) F27b]
    |         Z. bartoni Darragh & Kendrick 2008 DK08
    |         Z. lornensis (Marwick 1926) [=Turritella lornensis] F27a
    |         Z. semiconcavus [=Turritella semiconcava] F27a
    |--*Z. (Zeacolpus) vittatus (Hutton 1873) P61 [=Turritella vittata P61; incl. T. carlottae Watson 1881 F27a]
    `--Z. (Stiracolpus Finlay 1926) P61
         |--Z. (*S.) symmetricus (Hutton 1873) P61 [=Turritella symmetrica P61; incl. T. chordata F27a]
         |--Z. (S.) ahiparanus (Powell 1927) P61 [=Turritella (Zeacolpus) ahiparana BC01]
         |--Z. (S.) ascensus Marwick 1957 P61
         |--‘Stiracolpus’ atkinsoni [=Turritella atkinsoni] F27a
         |--Z. (S.) blacki Marwick 1957 P61
         |--Z. (S.) delli Marwick 1957 P61
         |--‘Stiracolpus’ godeffroyanus [=Turritella godeffroyana] F27a
         |--‘Stiracolpus’ kanieriensis (Harris 1897) F27a (see below for synonymy)
         |--Z. (S.) knoxi Marwick 1957 P61
         |    |--Z. k. knoxi P61
         |    `--Z. k. tardior Marwick 1957 P61
         |--Z. (S.) maorius (Powell 1940) [=Gazameda maoria] P61
         |--Z. (S.) mixtus Finlay 1930 P61
         |--Z. (S.) pagoda (Reeve 1849) P61 [=Turritella pagoda F27a]
         |    |--Z. p. pagoda P61 [incl. T. fulminata F27a, Zeacolpus fulminatus P61]
         |    `--Z. p. powelli Marwick 1957 P61
         |--‘Stiracolpus’ smithianus [=Turritella smithiana] F27a
         `--‘Stiracolpus’ waikopiroensis (Suter 1917) [=Turritella waikopiroensis] F27a

‘Stiracolpus’ kanieriensis (Harris 1897) F27a [=Turritella kanieriensis F27a, T. (Zaria) tricincta Hutton 1873 nec Borson 1820 nec Morris 1845 F27b]

*Type species of generic name indicated


[BC01] Boyko, C. B., & J. R. Cordeiro. 2001. Catalog of Recent type specimens in the Division of Invertebrate Zoology, American Museum of Natural History. V. Mollusca, part 2 (class Gastropoda [exclusive of Opisthobranchia and Pulmonata], with supplements to Gastropoda [Opisthobranchia], and Bivalvia). Bulletin of the American Museum of Natural History 262: 1–170.

[DK08] Darragh, T. A., & G. W. Kendrick. 2008. Silicified Eocene molluscs from the Lower Murchison district, Southern Carnarvon Basin, Western Australia. Records of the Western Australian Museum 24 (3): 217–246.

[F27a] Finlay, H. J. 1927a. A further commentary on New Zealand molluscan systematics. Transactions and Proceedings of the New Zealand Institute 57: 320–485.

[F27b] Finlay, H. J. 1927b. New specific names for austral Mollusca. Transactions and Proceedings of the New Zealand Institute 57: 488–533.

[P61] Powell, A. W. B. 1961. Shells of New Zealand: An illustrated handbook 4th ed. Whitcombe and Tombs Limited: Christchurch.

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