Borelis melo (Fichtel and Moll, 1798)

Figure 22.16

1798 Nautilus melo Fichtel and Moll, p. 118.

2013 Borelis melo (Fichtel and Moll); Jones, p. 35, pl. 1, fig. 16.

Description. Test subrounded, side view spherical, wall calcareous, imperforate, surface ornamented with horizontal ribs, faint pustules in between low undulating ridges placed along the chamberlet sutures; chambers planispirally arranged, many chamberlets in adults, coiling involute; periphery rounded, sutures well depressed; aperture a series of subrounded to irregularly quadrangular openings placed in a row on the apertural face.