Description
Author: Jan Delsing
Text ID: 93958
Text Type: 1
Page: 0
Created: 2019-05-27 14:48:34 - User Delsing Jan
Language: EN
Text function: [[t:1338650,textblock=93958,elang=EN;Description]]
Shell very small for the genus, height 3.7 mm, width 1.4 mm, biconical, turriculate elongate, solid. Protoconch multispiral, dome shaped, of 3.2-3.3 convex whorls. Protoconch-I (embryonic shell) of 0.8 whorls, separated by a demarcation from protoconch-II (larval shell). First 1.0-1.1 apical whorls densely covered by micro-granules, next 0.7-0.8 whorl apparently smooth, the remaining with reticulated sculpture of 5 spiral series of tubercles (3 major, 1 smaller subsutural, 1 smaller suprasutural), crossed by weak opisthocline axial riblets, more evident subsuturally. Spiral cords corresponding to each spiral series of tubercles gradually appearing on the last protoconch whorl. Maximum diameter of protoconch 690-710 µm. Protoconch-teleoconch transition not well marked. Teleoconch of 2.5-2.7 whorls, rounded, sutural ramp convex, whorl sides very gently convex. Last whorl about 3/5 of shell length. Axial sculpture of 8-10 rounded axial ribs fading at base, regularly spaced, with narrower interspaces. Spiral sculpture of one major granulose cord, and 20-28 granulose cordlets, irregularly spaced. Smaller granulose threads in most interspaces. Entire surface covered by microgranules. Aperture narrow, ovate, about 2/5 of shell height. Siphonal canal short, broad and open, slightly deviating to the left. Inner lip with a weak parietal callus. Outer lip not varicose. Anal sinus marked, arcuate on shoulder slope. Colour uniformly reddish-brown.
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: 93959
Text Type: 3
Page: 0
Created: 2019-05-27 14:50:31 - User Delsing Jan
Language: EN
Text function: [[t:1338650,textblock=93959,elang=EN;Distribution]]
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).