Popis
Autor: Jan Delsing
Text ID: 92846
Text Type: 1
Page: 0
Založeno: 11.04.2019 13:34:48 - Uživatel Jan Delsing
Language: EN
Odkazová funkce: [[t:1326757,textblock=92846,elang=EN;Popis]]
Shell of rather small size and solid structure, with elevated spire, the whorls strongly shouldered, carinated; body whorl somewhat inflated, anterior canal short but distinct, siphonal fasciole prominent, enclosing a shallow, funnellike umbilical excavation. Aperture broadly ovate, narrowing toward the siphonal canal. First nuclear whorl lost, total number of whorls probably eight. Sculpture consisting of low, rounded axial ribs beginning about the third whorl and numbering about ten on the body whorl, crossed by imbricated spiral cords. Shoulder carinated, ornamented with flattened, triangular, upturned spines where it is crossed by the axial ribs. Slope above the carina sculptured by about ten spiral cords with thin, raised, imbricating scales; upper surface of carina with about three smaller, scaled cords extending out onto the spines. On the body whorl there are about seven major cords below the carina, separated by another six or seven secondary cords, all conspicuously imbricated where crossed by the axial growth-lamellae. Interior of outer lip with nine smooth, sharp lira¬tions; parietal wall smooth, obliterating the surface sculpture, somewhat raised at its margin to form a thin parietal lip. Color white, the upper whorls tinged with light brown; aperture white. Measurements.—Length 12.5 mm, width overall 10 mm; length 24 mm, width overall 17.1 mm.
Bayer, F.M. 1971, New and unusual mollusks collected by R/V JOHN ELLIOTT PILLSBURY and R/V GERDA in the tropical western Atlantic.