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Figure 8 | BMC Developmental Biology

Figure 8

From: External and internal shell formation in the ramshorn snail Marisa cornuarietisare extremes in a continuum of gradual variation in development

Figure 8

Differential growth in “partly-shelled” snails. A: SEM-image of a 9-day-old platinum-plus-heat-exposed animal with a well developed shell whorl (right lateral view); B: sketches of a control animal (left) and a “partly-shelled” animal (right), dorsal view, black: mantle tissue; grey: mantle edge; arrows indicate the direction of differential growth; CN: ctenidium; F: foot; H: head; MTE: mantle edge; SH: shell; VS: visceral sac.

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BMC Developmental Biology

ISSN: 1471-213X

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