Description
Author: Jan Delsing
Text ID: 93960
Text Type: 1
Page: 0
Created: 2019-05-27 14:52:54 - User Delsing Jan
Language: EN
Text function: [[t:1338651,textblock=93960,elang=EN;Description]]
Shell very small for the genus, height 3.4-3.6 mm, width 1.3-1.5 mm, biconical, turriculate elongate, solid. Protoconch multispiral, dome shaped, of 2.8-2.9 convex whorls. Proto-conch-I (embryonic shell) of 0.7-0.8 whorls, sep¬arated by a demarcation from protoconch-II (larval shell). First 1.6-1.7 apical whorls apparently smooth, covered with microgranules, the remaining with reticulated sculpture of 4 granulose spirals (3 major, 1 smaller subsutural), crossed by oblique axial riblets. Maximum diameter of protoconch 710-720 µm. Protoconch-teleoconch transition not well marked. Teleoconch of 2.5-3 whorls, rounded, sutural ramp convex, whorl sides gently convex. Last whorl about 3/5 of shell length. Axial sculpture of 10-11 prominent, flexuous and narrowly rounded axial ribs, regularly spaced, with broader interspaces. Spiral sculpture of 2 major granulose cords, with 25-36 irregularly alternating smaller granulose cordlets and interspaces of variable size. Each cordlet actually consisting of a rows of densely packed rounded granules. Aperture narrow, ovate, about 2/5 of the shell height. Siphonal canal moderately long, broad and open, deviating on the left. Inner lip with a moderately developed parietal callus. Outer lip not varicose. Anal sinus marked, arcuate on shoulder slope. Colour yellowish-brownish with two dark brown bands, one subsutural and the second on the middle of the last whorl; parietal callus brownish with siphonal canal white.
Mariottini P., Di Giulio A., Smriglio C. & Oliverio M. (2015). Additional notes on the systematics and new records of East Atlantic species of the genus Sorgenfreispira Moroni, 1979 (Gastropoda Mangeliidae).
Distribution
Author: Jan Delsing
Text ID: 93961
Text Type: 3
Page: 0
Created: 2019-05-27 14:53:33 - User Delsing Jan
Language: EN
Text function: [[t:1338651,textblock=93961,elang=EN;Distribution]]
Western Sahara, Mauritania, Senegal, Ivory Coast, Angola
Mariottini P., Di Giulio A., Smriglio C. & Oliverio M. (2015). Additional notes on the systematics and new records of East Atlantic species of the genus Sorgenfreispira Moroni, 1979 (Gastropoda Mangeliidae).