. Elementary text-book of zoology, tr. and ed. by Adam Sedgwick, with the assistance of F. G. Heathcote. DEVELOPMENT OP DISTOME^. IL'D Further it cannot be doubted that the development of the Distomese, which has hitherto been regarded as a case of alternation of generations really represents a form of heterogamy allied to psedogenesis. After the completion of the segmentation and em- bryonic development, the ciliated embryos (fig 115, a, 6) pass from the egg into the water, where they swim about, and eventually make their way into the body of a Snail, in which they give rise to sac-like or br
. Elementary text-book of zoology, tr. and ed. by Adam Sedgwick, with the assistance of F. G. Heathcote. DEVELOPMENT OP DISTOME^. IL'D Further it cannot be doubted that the development of the Distomese, which has hitherto been regarded as a case of alternation of generations really represents a form of heterogamy allied to psedogenesis. After the completion of the segmentation and em- bryonic development, the ciliated embryos (fig 115, a, 6) pass from the egg into the water, where they swim about, and eventually make their way into the body of a Snail, in which they give rise to sac-like or branched Sporocysts (fig 115, c) or to Redire provided with an alimentary canal (fig. 115, d). These stages in the development of Distomum which are apparently d fh. 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 Claus, Carl, 1835-1899; Sedgwick, Adam, 1854-1913; Sinclair, F. G. (Frederick Granville), b. 1858. London, Swan Sonnenschein & co.
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Keywords: ., book, bookcentury1800, bookcollectionbiodiversity, bookdecade1890
