Tryon G. W. Manual of conchology, structural and systematic: with illustrations of the species. Vol. VIII. Naticidae, Calyptraeidae, Turritellidae, Vermetidae, Caecidae, Eulimidae, Turbonillidae, Pyramidellidae. Philadelphia: Academy of Natural Sciences, 1886. Plate 77, figure 79. Reprint in the Biodiversity Heritage Library.
Author
George Washington Tryon (1838–1888)
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