Odostomia unidentata

Odostomia unidentata (Montagu, 1803) (Fig. 13G 1-G 3) Turbo unidentatus Montagu, 1803: 324. Odostomia unidentata – Landau & Micali 2021: 242, pl. 46, figs 1-3. For more, see synonymy list in Landau & Micali (2021). MATERIAL AND DIMENSIONS. — Maximum height 1.1 mm, width 0.6 mm. — RGM.1365020 (2), leg. ACJ; RGM.1365214 (1), leg. AWJ; RGM.1365122 (50+), leg. AWJ. SPECIES CHARACTERISATION. — Small shell with tall conical spire, type A2 helicoid protoconch (Landau et al., 2020a), almost flat-sided teleoconch whorls, last whorl angular at the periphery, prosocline growth-lines and well developed columellar fold. DISTRIBUTION. — Middle Miocene: Proto-Mediterranean Sea (Serravallian): Karaman Basin, Turkey (Landau et al. 2013). — Upper Miocene: Atlantic (Tortonian and Messinian), NW France (Landau et al. 2020a). — Lower Pliocene: NSB, Coralline Crag, England (Harmer 1923); western Mediterranean, Tunisia (Fekih 1969); central Mediterranean, Italy (Sacco 1892; Crovato & Micali 1992b; Guioli et al. 2009; Chirli & Micali 2011). — Upper Pliocene: Atlantic, St Erth, England (Harmer 1923), NSB, Red Crag, England (Harmer 1923), Kruisschans and Oorderen Sands, Belgium (Marquet 1993, 1998); Atlantic, Mondego Basin, Portugal (Landau & Micali 2021); western Mediterranean, Estepona Basin, S. Spain (Peñas & Rolán 1999; Landau & Micali 2021); central Mediterranean, Italy (Sacco 1892;? Cavallo & Repetto 1992; Ferrero et al. 1998). — Upper Pliocene-Pleistocene: NSB, Netherlands (Van Regteren Altena et al. 1964). — Lower Pleistocene: Selsoif, NW France (this paper); central Mediterranean, Italy (Cerulli-Irelli 1914; Gianolla et al. 2010; Brunetti 2011); eastern Mediterranean, Rhodes (Chirli & Linse 2011). — Upper Pleistocene: Ireland (Harmer 1923). — Present-day: eastern Atlantic from North Iceland, Norway to British Isles (Nordsieck 1972; HØisaeter 2014), North Sea (Raven 2020), northwestern Spain (Trigo et al. 2018), Azores, Madeira and Selvagens Islands (Segers et al. 2009), south to Canaries (Hernández et al. 2011), West Africa, Cape Verde Islands to Angola (Peñas et al. 2009, 2014), into western Mediterranean (Bucquoy et al. 1882; Peñas et al. 1996), central Mediterranean (Cachia et al. 2001; Giannuzzi-Savelli et al. 2014), eastern Mediterranean (Öztürk et al. 2013).