Popis
Autor: Jan Delsing
Text ID: 129133
Text Type: 1
Page: 0
Založeno: 07.01.2024 23:25:00 - Uživatel Delsing Jan
Language: EN
Odkazová funkce: [[t:1192806,textblock=129133,elang=EN;Popis]]
Shell medium to large (up to 41.5 mm in length), elongated fusiform, heavy. Spire high, 0.57-0.60 of total length; whorls convex, particularly body whorl, with a slight, rounded shoulder below sulcus, which is shallow; suture bordered by a slight cord. Suture narrow, distinct, slightly undulated. Teleoconch of 14 whorls. Sculpture of narrow, strong axial ribs, 15 on penultimate whorl, 13 on body whorl, which extend to about mid-columella level; ribs weakly opisthocline, tending to line up on adjacent whorls. Varices two to three per whorl, situated about one-third of last whorl behind lip. Numerous thin and crisp, wavy spiral ridges overriding axial ribs, five on penulti¬mate whorl, 12 on body whorl, but absent on shoulder ramp; subsutural cord weak. Spiral striae absent. Dense growth lines. Aperture narrowly elliptical, subrectangular, gradually tapering to siphonal canal. Outer lip thin, edge weakly crenulated, strom-boid notch evenly concave. Anal sinus deeply V-shaped with rounded apex, expanding at edge, its apex on lower side of shoulder ramp. Columella straight, callus narrow, forming a narrow false umbilicus, parietal callus thin. Siphonal canal relatively long, deep, narrow, recurved; anterior tip shallowly notched. Protoconch high, three whorls, the first two smooth, the last one present with sparse axial ribs; breadth 1.13-1.42 mm. Ground colour yellowish-brown, early whorls darker, interior of aperture and axial ribs off-white, with darker brown maculations next to varices.
Distribution
East China Sea and South China Sea, Nansha Islands.
Li, Kilburn & Li, 2010. Report on Crassispirinae Morrison, 1966 (Mollusca Neogastropoda Turridae) from the China Seas