. Mollusca ... Mollusks. 01 (HiB Fig. 47.—Plcutopylis rcfuga. side there are three short horizontal folds, the upper longest, the median shortest; a short horizontal fold at the aperture is united to the flexuous ridge (see fig. 47f, which shows the ]iarietal wall); while the palatal armature appears to consist of six folds: the first three short and horizontal; the fourth strong, vertical, shghtly indented about the middle : the fifth and sixth horizontal and thin (see fig. 47 d, which gives the posterior aspect of both armatures). Tigs. 47 a-c are reproduced from the photographs of the type
. Mollusca ... Mollusks. 01 (HiB Fig. 47.—Plcutopylis rcfuga. side there are three short horizontal folds, the upper longest, the median shortest; a short horizontal fold at the aperture is united to the flexuous ridge (see fig. 47f, which shows the ]iarietal wall); while the palatal armature appears to consist of six folds: the first three short and horizontal; the fourth strong, vertical, shghtly indented about the middle : the fifth and sixth horizontal and thin (see fig. 47 d, which gives the posterior aspect of both armatures). Tigs. 47 a-c are reproduced from the photographs of the type specimens, enlarged two diameters. 95. Plectopylis perrierae, Gade. Plectopylis perrierae, Gude, Science Gossip, N. s, iv, 1898, p. i'/il, tig. 67 (shell and armature) ; ibid., Journ. Malac. vii, 1898, p. 14, fig. 10. Ptectojjylis {Chermeciu) perrierae, Gude, Science Gossip, N. s. vi, 1899, p. 148. Original description:—" Shell sinistral, discoid, widely and deeply umbilicated, pale corneous, very finely and regularly striated, and decussated by spiral lines. Suture shghtly impressed, spire. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Blanford, William Thomas, 1832-1905; Godwin-Austen, Henry Haversham, 1834-1923; Gude, Gerard Kalshoven, 1858-; Preston, Hugh Berthon, 1871-. London, Taylor and Francis; [etc. , etc. ]
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Keywords: ., bookauthorg, bookcentury1900, bookdecade1900, booksubjectmollusks
