Distribution
Author: Jan Delsing
Text ID: 92658
Text Type: 3
Page: 0
Created: 2019-04-06 16:03:56 - User Delsing Jan
Language: EN
Text function: [[t:550031,textblock=92658,elang=EN;Distribution]]
Queensland, Australia, north and west to north-western Australia.
Radwin, G.E. & D'Attilio, A., 1976. Murex Shells of the World. An Illustrated Guide to the Muricidae.
Author: Jan Delsing
Text ID: 92657
Text Type: 7
Page: 0
Created: 2019-04-06 16:03:15 - User Delsing Jan
Language: EN
Text function: [[t:550031,textblock=92657,elang=EN;title]]
The shell is of moderate size (maximum length 65 mm) and fusiform. The spire is high, consisting of two and one-half rounded nuclear whorls and six peripherally angulate postnuclear whorls. The suture is impressed. The body whorl is moderately small. The aperture is ovate, with a small, shallow anal sulcus, this delimited on both sides by an elongate transverse ridge. The outer apertural lip is erect and weakly crenulate. The columellar lip is detached and strongly erect. The siphonal canal is long, narrowly open to the right, arched to the left, and dorsally recurved.
The body whorl bears three spinose varices, these slightly excavated on their trailing edges. Intervarical axial sculpture consists of three to five weak to ephemeral ridges, these strongest over the major spiral elements. Spiral sculpture consists of primary and secondary cords and threads of two strengths. Above the shoulder margin, three or four coarse threads are evident, with three to five finer threads in each interspace and extending onto the varical spines. At the shoulder margin is a pair of primary cords, with fine threads between the two. Below this, several fine and coarse threads are followed by two or three secondary cords, a second pair of primary cords with accompanying threads, and several additional secondary cords and fine threads. The siphonal canal bears two primary cords and many fine threads. Where the two pairs of primary body cords intersect the varices, long, antlerlike, bifurcated, ventrally closed spines are developed. The lower fork of the uppermost spine extends directly outward, curving gently in a posterior direction. The upper branch is sharply dorsally bent. The two rami (branches of the lower spine) arc divergent but unrecurved. Secondary cords form short, sharp, ventrally bent spines on the varices. The two major cords on the canal develop two moderately long, slender, sharp, straight spines. The persistent shoulder spines of older whorls appear to add additional spines at the posterior end of each varix. Shell color is pale fleshy tan to white. The aperture is white.
Radwin, G.E. & D'Attilio, A., 1976. Murex Shells of the World. An Illustrated Guide to the Muricidae.