Pilsbry, H. A. & Cooke, C. M. (1918-1920). Manual of conchology, structural and systematic, with illustrations of the species. Ser. 2, Pulmonata. Vol. 25: Pupillidae (Gastrocoptinae, Vertigininae). pp i-ix, 1-404, pls 1-34. Philadelphia, published by the Conchological Section, Academy of Natural Sciences. [pp. 1-64, pls. 1-5, Nov. 5, 1918; pp. 65-144, figs. 1-9 + 2, pls. 6-10, Feb. 20, 1919; pp. 145-224, pls. 11-18, Jun. 30, 1919; pp. 225-404, i-ix, figs. 1-8 + 1, pls. 19-34, May 28, 1920]. Manual of Conchology, structural and systematic. 1-401, pl. 1-34.
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Pilsbry, H. A. & Cooke, C. M.
1918-1920
<i>Manual of conchology, structural and systematic, with illustrations of the species</i>. Ser. 2, Pulmonata. Vol. 25: Pupillidae (Gastrocoptinae, Vertigininae). pp i-ix, 1-404, pls 1-34. Philadelphia, published by the Conchological Section, Academy of Natural Sciences. [pp. 1-64, pls. 1-5, Nov. 5, 1918; pp. 65-144, figs. 1-9 + 2, pls. 6-10, Feb. 20, 1919; pp. 145-224, pls. 11-18, Jun. 30, 1919; pp. 225-404, i-ix, figs. 1-8 + 1, pls. 19-34, May 28, 1920]
pp. 226-273, pls 19-26 by H. A. Pilsbry & C. M. Cooke (“Genus Lyropupa”) and pp. 278-322, pls 27-29 by C. M. Cooke & H. A. Pilsbry (“Hawaiian nesopupillid groups”)