Conus n. sp.
Beu & Raine (2009) state: This distinctive cone is unlikely to be confused with any other New Zealand species. Conus trigonicus also has a very depressed spire, but differs from the present species in having relatively prominent spiral sculpture, a straight-sided or slightly concave last whorl, and a regularly curved, non-projecting periphery. We are not aware of any other Conidae in which the periphery protrudes to the degree it does in this new species.
Distribution: Duntroonian, Chatton Formation, Wendon Valley; ?Waimumu Lime Quarry, Southland.
Rather small for family (height c. 25 mm), spire very low. Protoconch not known, apical whorls projecting above rest of spire. Teleoconch apparently of about 6 whorls, upper surface rather irregular; last whorl with a thin, irregularly undulose peripheral keel, strongly concave below, apparently tapering to a long neck. Sculpture on upper surface of very weak spiral threads; base with more prominent, though very subdued cords.