. Mollusca ... Mollusks. PSErDODON. 151 less distincb and placed a little more posteriorly; nacre light salmon, iridescent. Long. 32, lat. 53, diam. 13 mm. Eah. Pegu. Comparing the present variety with what must be considered the typical form of P. peguensis, the author makes the following observations :—" .... uniformly more depressed, lighter coloured; more regularly rhombic in form, and of less size; but the most. Pig. 9.— 1 & 2. Fsendodon (T.)peguensis (Ant.') \sy. citrvata, Preston. (Type.) Nac. size. 3. Hinge and muscular scars of same. prominent difference consists in the beaut


. Mollusca ... Mollusks. PSErDODON. 151 less distincb and placed a little more posteriorly; nacre light salmon, iridescent. Long. 32, lat. 53, diam. 13 mm. Eah. Pegu. Comparing the present variety with what must be considered the typical form of P. peguensis, the author makes the following observations :—" .... uniformly more depressed, lighter coloured; more regularly rhombic in form, and of less size; but the most. Pig. 9.— 1 & 2. Fsendodon (T.)peguensis (Ant.') \sy. citrvata, Preston. (Type.) Nac. size. 3. Hinge and muscular scars of same. prominent difference consists in the beautiful crenulose striae of the present species, which are densely crowded over the whole surface of the shell, while M. [P.'] peguensis is remarkably smooth over all except the posterior slope, and there the rugose folds are broader and less numerous than in M. [P.] crebristriata; the lines of growth are also more numerous in M. [P.] peguensis, generally about 8, while crebristriata has rarely more than 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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