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Dall 19 List of papers published by R. E. C. Stearns. Helix (Arionta) coloradoensis:- A new locality, by R. E. C. Stearns. [The Nautilus VIII, No. 3, July 1894, p.29.] [[left margin]] (17) [[/left margin]] In this paper, Dr. Stearns reports this recently described species from Mountain Springs, Colorado Desert, San Diego, California. A new variety of Ocinebra circumtexta, Stearns, by R. E. C. Stearns. [The Nautilus IX, No. 2, June 1895, p.16.] [[left margin]] (18) [[/left margin]] Dr. Stearns calls attention to a variety of a pale orange color, with bandings of deeper orange. He has named it var. aurantia. List of papers published by Charles T. Simpson. [[left margin]] (19) [[/left margin]] Distribution of the land and fresh-water mollusks of the West Indian region and their evidence with regard to past changes of land [[crossed-out]] and land [[/crossed-out]] and sea, by Charles Torrey Simpson. [Proc. U.S. Nat. Mus. XVII, No.1011, Jan 26th, 1895, pp.425-450, pl.XVI, figs 1-8] [[left margin]] Mur. [[/left margin]] In this paper, some account is given of the means of distribution of land & fresh-water snails. The theory is advanced that the land-snail fauna of the Greater Antilles is ancient, and has developed on the islands, which, formerly, were more elevated and united together as well as to Middle America and, by way of the Bahamas, to Florida; that a subsidence separated the islands from each other and from North America, leaving only the summits of the mountains [[left margin]] Mus. [[/left margin]]