Description
Author: Jan Delsing
Text ID: 93929
Text Type: 1
Page: 0
Created: 2019-05-26 20:56:49 - User Delsing Jan
Language: EN
Text function: [[t:1167523,textblock=93929,elang=EN;Description]]
Shell small, 5-9.3 mm., fusiform-ovate, with a moderately tall spire of strongly convex, weakly shouldered whorls, and a rounded body-whorl, excavated over the neck, and terminated in a short shallowly notched anterior canal. Protoconch stout, cylindrical, of about 11 smooth whorls, with a few subsutural axial wrinkles near its close. Adult sculpture of numerous narrow flexuous axial ribs, overridden by crisp spiral cords, which are slightly gemmulate at the points of intersection. The axials are continuous from suture to suture on the first post-nuclear whorl, but later become subobsolete over the shallow shoulder sulcus, which leaves the commencement of the axials as a sutural row of gemmules. Aperture wide, outer lip thin-edged, with a deep and wide sutural sinus "like Pleurotomella" (i.e., reversed L-shape); also with a relatively deep stromboid notch below. Parietal callus thin, no apertural processes. Range — Known by the type species and an undescribed one, both from the Miocene of Bowden, Jamaica.
Powell, 1966.The Molluscan Families Speightiidae and Turridae. (Secundary description)