Chelyconus dertogibbus ( Sacco, 1893 )

Chelyconus dertogibbus ( Sacco, 1893)

( Figs 9–10, 20–21)

1893 Conus (Chelyconus) dertogibbus – SACCO, p. 64, pl. 6, fig. 17, varieties: semiovatospira, digitaloides, suturata, perovuloidea, depressogibba, ovatoastensis: p. 65, pl. 6, figs 19–24.

1972 Conus dertogibbus Sacco – DAVOLI, p. 96, pl. 5, figs 1, 8–9, 14–16, 19–21, 24–26, 35–36, 40 (cum syn.).

1999 Conus (Chelyconus) dertogibbus (Sacco) – MUÑIZ, p. 46, figs 2/F, 6/P–Q (cum syn.).

2011 Conus dertogibbus (Sacco) – CAPROTTI, p. 67, fig. 7/T–U.

Material – 38 specimens.

Description – Shell moderately small (SL: 12–25). Spire high, outline straight to slightly convex. Teleoconch sutural ramps convex, last spiral whorl high. Shoulder subangulate, sloping. Body whorl ventricosely conical, outline sigmoid, smooth. Aperture narrow. Subsutural flexure asymmetrically curved.

Remarks – The species is characterised by moderate variability of development of the spire ( SACCO 1893, DAVOLI 1972). The Letkés specimens are close to the syntype (figured by FERRERO MORTARA et al. 1984, pl. 18, fig. 5), and to the specimens represented in the literature.

Distribution – Italy (MM-P), France (MM), Spain (LP). Hungary: Letkés (MM).