Odostomia unidentata ( Montagu, 1803 )

Odostomia unidentata ( Montagu, 1803) View in CoL ( Fig. 13G View FIG 1-G View FIG 3 View FIG )

Turbo unidentatus Montagu, 1803: 324 .

Odostomia unidentata View in CoL – 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).