Description
Author: Jan Delsing
Text ID: 80541
Text Type: 1
Page: 0
Created: 2015-10-22 20:41:00 - User Delsing Jan
Last change: 2015-10-22 20:41:36 - User Delsing Jan
Language: EN
Text function: [[t:1165995,textblock=80541,elang=EN;Description]]
Shell small for the genus, white under a straw-colored periostracum, thin, with about seven whorls exclusive of the (lost) nucleus: suture oppressed, the edge slightly swollen, the fasciole in front of it slightly constricted; axial sculpture of about a dozen narrow rounded ribs with wider interspaces, beginning at the fasciole and obsolete on the base; also fine incremental lines rising to minute wrinkles near the suture; spiral sculpture on the penultimate whorl of about nine flattish threads with narrower interspaces, on the last whorl beyond these threads the interspaces become channeled grooves and the places of the threads wider flat areas, while on the canal these are replaced by more rounded closer threads; aperture narrow, the anal sulcus very shallow, outer lip thin, sharp, arcuate, simple; pillar and body erased, smooth, the pillar attenuate in front; canal narrow, straight. Height of shell. 20 mm. Height of last whorl 14 mm. Diameter. 7 mm.
Source: Dall, 1919. Descriptions of New Species of Molluscs of the Family Turritidae from the West Coast of America and Adjacent regions. (Original description) (as galapagana)
Distribution
Author: Jan Delsing
Text ID: 80542
Text Type: 3
Page: 0
Created: 2015-10-22 20:44:39 - User Delsing Jan
Language: EN
Text function: [[t:1165995,textblock=80542,elang=EN;Distribution]]
Cortez Sea. Off the Galapagos