Shell minute, disc-shaped; brown, with widely spaced lamellar ribs and finer growth and spiral lines; umbilicus ca. 1/4 of the width of the shell.
© Robert Forsyth (Photo ID #16515)
Shell minute, disc-shaped; brown, with widely spaced lamellar ribs and finer growth and spiral lines; umbilicus ca. 1/4 of the width of the shell.
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BC Ministry of Environment: BC Species and Ecosystems Explorer--the authoritative source for conservation information in British Columbia. |