File:FMIB 47863 Mya arenaria Ten camera outlines of shells varying in length from 04 mm to 75 mm They are intended to illustrate the change from.jpeg
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English: Mya arenaria. Ten camera outlines of shells varying in length from 0.4 mm to 7.5 mm. They are intended to illustrate the change from a rounded outline in smaller individuals to the elongated condition of older forms. There is at first a more rapid posterior, and subsequently a more rapid anterior, growth of shell, which causes the relative position of the umbo to shift forward, and then back to a position midway between the two extremities of the shell
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| Date | 1901.00 | |||||||||||||||||||||||
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English: Freshwater and Marine Image Bank |
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English: Kellogg, James L. (1901) Observations on the Life-History of the Common Clam, Mya Arenaria, Bulletin of the United States Fish Commission, vol. 19, 1899, Washington, DC: Government Printing Office |
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| current | 14:57, 3 September 2015 | | 1,115 × 754 (136 KB) | BMacZeroBot (talk | contribs) |
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