. The Bermuda islands. An account of their scenery, climate, productions, physiography, natural history and geology, with sketches of their discovery and early history, and the changes in their flora and fauna due to man. Natural history. 318 A. E. Verrill—The JBermuda Islands. V30 b.—Introduced Snails. Figures 75, a, h, c\ 76, o, h; 79e. The " Sinral SnaiV {Rumina decoUata (L.). On account of its great abundance and the damage that it does to the crops, the " spiral snail" is the most important species. This appears to have been accidentally introduced by Governor Lefroy,. Figu
. The Bermuda islands. An account of their scenery, climate, productions, physiography, natural history and geology, with sketches of their discovery and early history, and the changes in their flora and fauna due to man. Natural history. 318 A. E. Verrill—The JBermuda Islands. V30 b.—Introduced Snails. Figures 75, a, h, c\ 76, o, h; 79e. The " Sinral SnaiV {Rumina decoUata (L.). On account of its great abundance and the damage that it does to the crops, the " spiral snail" is the most important species. This appears to have been accidentally introduced by Governor Lefroy,. Figures 75, a, h, c.—Spiral Snail {Ru7nina decoUata); xl^; a, adult, ordinary form ; b, adult example, still retaining most of the apical whorls ; c, a young shell with perfect apex. Figures 75, d, e, f.—Polygyra appressa, showing variations ; x 1^. with growing plants from Teneriffe, in 1876. A single specimen was found in that year by J. M. Jones, in the garden at Mt. Lang- ton.* A few other specimens were found, from time to time, in and about Hamilton and in Paget Parish from 1877 to 1881, when it was still rare and local ; in 1882 it was common in some localities. Soon after this it began to spread rapidly over the Main Island in all directions, but most rapidly along the principal highways. By 1890 * The Yale University Library now owns the copy of the Memorials of Ber- muda presented to J. M. Jones by Governor Lefroy. Inserted on the fly leaves is an autograph letter from Lefroy to Jones, dated October 13, 1877, after leav- ing Bermuda, in which he mentions finding a second specimen of this snail in the garden at Mt. Langton, in 1877. In this letter he also refers to the "large slugs " (probably Veronicella Schivelyce), as abundant in the garden of Mr. French. The first specimen of Rumina, found by Jones in 1876, is recorded in the Essay, No. 3, by Mr. Morris A. M. Frith, who quotes a letter from Mr. Jones in regard to it. But the earliest printed record of
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectnatural, bookyear1902
