Description
Author: Jan Delsing
Text ID: 96451
Text Type: 1
Page: 0
Created: 2019-11-04 18:15:35 - User Delsing Jan
Language: EN
Text function: [[t:497704,textblock=96451,elang=EN;Description]]
T. perforata, tenuissima, hyalina, epidermide tecta, subgiobosa, postice leviter, angustata, truncata; anfractibus spirae 2—3, sutura canaliculata distincti; apertura; obpyriformis, antice, postice sinum angustum praebens.; labrum sub angulo obtuso abiens, dem deflaxum, leviter impressum, antice large arcuatum, productum; columella subrecta, leviter recedens, vix reflecta; umbilicus parvus subobtectus. Long., 4 mm. (Loven.)
Shell very thin, vitreous, subglobose; base obliquely rounded; vertex narrowly truncated, narrowly perforated, the spire nearly concealed. Aperture as long as the shell, narrow and supine above, expanded below; outer lip produced above the vertex and subangulate, obliquely arcuate below; columella flexuous, umbilicus distinct. (Tryon and Pilsbry, Manual of Conchology.)
Oldroyd, I.S. The Marine Shells of the West Coast of North America. Volume II.1.
Distribution
Author: Jan Delsing
Text ID: 96452
Text Type: 3
Page: 0
Created: 2019-11-04 18:16:40 - User Delsing Jan
Language: EN
Text function: [[t:497704,textblock=96452,elang=EN;Distribution]]
Type locality, Scandinavia. RANGE. Bering Sea and Arctic Ocean; circumboreal
Oldroyd, I.S. The Marine Shells of the West Coast of North America. Volume II.1.