Jujubinus montagui

Jujubinus montagui (Wood, 1828) (Fig. 4G 1-G 3) Trochus montagui W. Wood, 1828: pl. 6, fig. 43. Jujubinus montagui – Caprotti 1976: pl. 7, fig. 10. — Graham 1988: 120, fig. 39. — Poppe & Goto 1991: 83, pl. 8, fig. 9. — Landau et al. 2003: 44, pl. 10, fig. 1. — Chirli 2004: 81, pl. 33, figs 9-16. — Pouwer & Wesselingh 2012: 159, figs 27-29. Jujubinus (Jujubinus) montagui – Cavallo & Repetto 1992: 42, fig. 37. MATERIAL AND DIMENSIONS. — Maximum height 7.0 mm (incomplete), width 7.2 mm. — RGM.1365068 (1), leg. AWJ; RGM.1365179 (1), leg. AWJ. SPECIES CHARACTERISATION. — Shell trochiform; protoconch and early teleoconch whorls not preserved; last two whorls weakly convex, separated by moderately deeply impressed suture; sculpture of seven to eight irregular, flattened spiral cords; axial sculpture of fine, close-set axial growth lamellae present only in the interspaces; base flattened bearing seven concentric cords; columella short, oblique, curved, bearing stout columellar fold delimiting siphonal fasciole. DISTRIBUTION. — Lower Pliocene: central Mediterranean, Italy (Chirli 2004). — Upper Pliocene: western Mediterranean, Estepona Basin, Spain (Landau et al. 2003); central Mediterranean, Italy (Caprotti 1976; Cavallo & Repetto 1992). — Upper Pleistocene: southern North Sea Basin (Pouwer & Wesselingh 2012). — Present-day: Atlantic, Orkneys south into the western Mediterranean, 5-200 m deep, mainly on gravel bottoms (Poppe & Goto 1991).