| Pseudobba boschmai nov. spec. Description. — The shell is large, very globose, umbilicate, and more or less irregularly obliquely ribbed; it is peculiarly striate-pitted between the ribs. The apex is obtuse. The whorls number 6 1/2, the upper are slightly convex, the following soon become more convex, while the ultimate whorl is very large, convex, and descending in front; the sutures are impressed. The upper whorls are dark fawn-coloured, gradually becoming darker; the body whorl is of a beautiful chestnut colour, becoming blackish towards the aperture, this colour is visible as a vertical band of about 1 cm broad; it does not obtect the reflexed peristome which is white and has a white lip. The aperture is dark and smooth. The peristome is nearly... |
