Colus sekiuensis Kiel and Goedert 2007: 43 Mollusks and a crustacean from early Oligocene methane-seep deposits in the Talara Basin, northern Peru Kiel, Steffen Hybertsen, Frida Hyžný, Matúš Klompmaker, Adiël A. Acta Palaeontologica Polonica 2020 2019-12-06 65 1 109 138  Kiel and Goedert 2007: 43  7QS2G Kiel and Goedert, 2007 Kiel and Goedert 2007 [808,1329,415,443] Gastropoda Colidae Colus Animalia Neogastropoda 19 128 Mollusca species sekiuensis   Fig. 17A, B.   2007  Colus sekiuensis sp. nov.;  Kiel and Goedert 2007: 43, figs. 3D, E.   Material.—  One specimen( NRMMo187062; H = 21 mm) from Cerro La Salinablock 2,  one specimen( NRMMo187063; H = 7 mm) from Cerro La Salinablock 4. Both upper Oligocene, Talara Basin, Peru.  Remarks.—The specimens are rather imperfectly preserved; with their evenly convex whorl profile and spiral sculpture consisting of 11 low, nearly flat-topped, beaded spiral cords, the specimens are identical to those of  Colus sekiuensisknown from whale and wood falls from early Oligocene strata in Washington state, USA( Kiel and Goedert 2007).  Cyrtochetus? chiraensis Olsson, 1931from the Chira Formation in the Talara Basin, northern Peru, which is stratigraphically well below the Heath shale and now considered to be late Eocene in age ( Higley 2004), is remarkably similar. That species differs from  Colus sekiuensisby having finer and more numerous spiral cords with a more convex profile compared to the nearly flat-topped spiral of  Colus sekiuensis. In general, the buccinid genus  Cyrtochetusdiffers from  Colusby having a varix at the aperture and denticles on the inner lip ( Garvie 2013); however, those features cannot be recognized in the available material.  Olsson (1931)reported two species of  Siphonalia? from Belén and Pajarabobo,  S.? belenensisand  S.? tessaria. Both differ from  Colus sekiuensisby their more angular whorl profile. At least judging from the published drawing,  Siphonalia noachina( Sowerby, 1846)as illustrated by Ortmann (1902: pl. 34: 5) from the late Oligocene to early Miocene of Patagonia, Argentina, has a similar overall sculpture, but a more convex whorl profile and fewer spirals per whorl. In his faunal list for the limestone rocks near Belén and Pajarabobo, Olsson (1931: 22)lists “  Austrofusus? belenensis n. sp.”, but a species of this name is neither described nor figured in his report. He also did not figure any neogastropods other than  S.? belenensisand  S.? tessariafrom the Heath shale. Hence,  Austrofusus? belenensisis a nomen dubium.  Stratigraphic and geographic range.—Oligocene to early Miocene of western Washington state, USA; early Oligocene of the Talara Basin, northern Peru. NRM Cerro La Salina 19 128 1 NRM Peru Talara Basin Cerro La Salina upper Oligocene 19 128 1