Pusillina inconspicua

Pusillina aff. inconspicua (Alder, 1844) (Fig. 8F 1-F 3) MATERIAL AND DIMENSIONS. — Maximum height 1.3 mm, width 0.8 mm. — RGM.1365258 (1), leg. ACJ; RGM.1365125 (5), leg. AWJ; RGM.1365097 (62), leg. AWJ; RGM.1405528 (2), leg. ACJ; RGM.794506 (1), leg. AWJ. SPECIES CHARACTERISATION. — Small rather high-spired rissoiform shell. Protoconch not preserved. Five convex teleoconch whorls separated by a deep suture. Sculpture variable mostly smooth but with some specimens consisting of numerous sinuous, opisthocline ribs strengthening towards abapical suture. Base rounded, smooth. Aperture ovate, angled at anal sinus. REMARK The overall characters resemble those of Pusillina inconspicua (Alder, 1844) but the specimens studied from Selsoif are consistently taller. Possibly this represents a new species, but the poor preservation and lack of protoconch preclude a formal description. DISTRIBUTION. — Lower Pleistocene: Atlantic, Selsoif, NW France (this paper).