The author, Olsson compared his new taxon demarcoi to polypleura which he noted was only known from its figure, however its pattern was “so different from all other members of the genus that it can be accepted for the present as a distinct species.” This larger, heavier, broader shouldered species also differs from polypleura in that it has a strong zoned pattern of large brown blotches, small brown spots, and bands of fine brown lines that have been compared to “music lines or musical staff pattern” encircling the body whorl. Crosse made a point of stating in his description of V. polypleura that it did not have the distinctive band of fine brown lines which was characteristic of V. musica Linnaeus,1758 (Crosse, 1876)
-The Festivus, Volume 51, Issue 2 “A review of the Voluta polypleura -demarcoi complex” by David P. Berschauer-

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