Monteiroconus bitorosus ( Fontannes, 1879 )

Kovács, Z. & Vicián, Z., 2013, Badenian (Middle Miocene) Conoidean (Neogastropoda) fauna from Letkés (N Hungary), Fragmenta Palaeontologica Hungarica 30, pp. 53-100 : 76-78

Monteiroconus bitorosus ( Fontannes, 1879)

( Figs 5–6, 82–86)

1879 Conus bitorosus – FONTANNES, p. 146, pl. 8, fig. 12.

? 1954 Conus sp. ( ventricosus Bronn juv.) – STRAUSZ, p. 113, pl. 7, fig. 145.

1964 Conus bitorosus Fontannes – HALL, p. 136, pl. 23, figs 1–2, 7–9, 13–17, 19–21, 24–25 (cum syn.).

1972 Conus bitorosus Fontannes – DAVOLI, p. 87, pl. 3, figs 7–10, pl. 8, figs 11, 15 (cum syn.).

1999 Conus (Chelyconus) bitorosus Fontannes – MUÑIZ, p. 38, figs 2/B, 6/E–H (cum syn.).

Material – 491 specimens.

Description – Shell medium-sized (SL: 18–51). Spire of low to moderate height, outline convex. Spiral whorls smooth. Shoulder subrounded. Body whorl ventricosely conical, outline convex, smooth with fine ridges at the base. Aperture wide. Subsutural flexure asymmetrically curved, of moderate depth. Colour pattern consisting of spiral stripes of dashes.

Remarks – M. bitorosus varies moderately in height of the spire. The species differs from D. fuscocingulatus in wider spire and in outline of the shoulder. The spire of C. steinabrunnensis and of C. vindobonensis is more concave; the shoulder of C. steindachneri is broader. The colour pattern of the species was represented by FORLI & CRESTI (2008, Fig. 1 /5).

Distribution – Portugal (M), France (M-P), Italy (M-LP), Austria (LM-MM), Poland, Romania, Turkey (MM), Tunisia (UM-LP), Spain (LP). Hungary: (?) Várpalota (LM), Letkés (MM).