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Figure 3 | BMC Developmental Biology

Figure 3

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

Figure 3

Sagittal sections of adult M. cornuarietis . Asterisks indicate corresponding structures; A: snail from the control, six weeks after oviposition, right lateral view; B: Pt-exposed snail, several months old, left lateral view; A: alimentary tract; CML: columellar muscle; CN: ctenidium; DG: digestive gland; F: foot; K: kidney; MTC: mantle cavity; MTE: mantle edge; MTG: mantle gap; O: odontophor; PG: pedal ganglion; SHG: shell gland.

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BMC Developmental Biology

ISSN: 1471-213X

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