Publications . y. Stearns, (in White.) U. S. Bull. 18, p. 14, pi. Ill, fig. 7, 1885. Pyramidula perspectiva simiUima Stearns, Proe. Wash. Acad. 2, p. 657, pi. 35, fig. 7, 1900. (Figure reproduced from U. Surv. Bull. 18 cited above. No description added.) Stearns,Science, n. s. Vol. 15, p. 153, 1902. (No description.) of Calif. Publ. Geol. Vol. 5, p. 67, 1906. (This is a nude nameand cannot hold in nomenclature.) Bhiostoma americana n. sp. Described herein. Vnio condoiii White, U. S. Geol. Surv. Bull. 18, p. 13, pi. 2, figs. 1-3, condoni
Publications . y. Stearns, (in White.) U. S. Bull. 18, p. 14, pi. Ill, fig. 7, 1885. Pyramidula perspectiva simiUima Stearns, Proe. Wash. Acad. 2, p. 657, pi. 35, fig. 7, 1900. (Figure reproduced from U. Surv. Bull. 18 cited above. No description added.) Stearns,Science, n. s. Vol. 15, p. 153, 1902. (No description.) of Calif. Publ. Geol. Vol. 5, p. 67, 1906. (This is a nude nameand cannot hold in nomenclature.) Bhiostoma americana n. sp. Described herein. Vnio condoiii White, U. S. Geol. Surv. Bull. 18, p. 13, pi. 2, figs. 1-3, condoni (White.) Hannibal, Proc. Mai. Soc. Lon. , p. 124 and 197, 1912. Transmitted May 27, August 26, 1920. EXPLANATION OF PLATE I Figures la, and 1Z>. Gastrodonta imperforata Hanna. Enlarged approx-imately 1% times. Figures 3a, 3b, and 3c. Hclicina oregona, n. sp. All enlarged approxi-mately six times. Figures ia, and 4&. Bhoistoma americana, n. sp. Both enlarged approxi-mately six times. [8]. 3e
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