Description
Author: Jan Delsing
Text ID: 89133
Text Type: 1
Page: 0
Created: 2018-08-08 14:30:06 - User Delsing Jan
Last change: 2018-08-08 14:31:22 - User Delsing Jan
Language: EN
Text function: [[t:1253487,textblock=89133,elang=EN;Description]]
Shell large, fusiform, of a rich reddish brown, deepest on the pillar, with a closely adherent, very thin, polished epidermis; whorls seven, without the nucleus, which is lost in the specimen, while the outer coat of the apical whorls is much eroded ; whorls full and rounded, suture distinct, not appressed or channeled ; transverse sculpture only of tine inconspicuous lines of growth; spiral sculpture of two sorts: first, a fine, sharp, slightly irregular striation, which covers the whole surface; secondly, of revolving elevated cinguli, of which three on the periphery are more widely and deeply separated and more elevated than the others; these three have interspaces equal to or wider than themselves; on the last whorl in front of the periphery the cinguli are flattopped little elevated wide bands with narrower interspaces, this sculpture becoming obscure toward the canal; above the periphery is one wellmarked cingulum slightly turreting the whorl which inclines from it to the suture in a flattened manner; aperture pointed in front, wider behind ; pillar simple, perfectly straight, anteriorly attenuated ; body and pillar with a thin dark brown glaze; outer lip very thin, sharp, crenulated by the outside sculpture, which also grooves the interior; notch shallow, wide; fasciole hardly visible; canal short, wide, hardly differentiated, straight. Altitude of shell 73 ; maximum diameter 30MM.
Dall, W.H. 1990. Scientific results of explorations by the U. S. Fish Commission Steamer “Albatross”. No. VII. Preliminary report on the collection of Mollusca and Brachiopoda obtained in 1887–88.