. Outlines of zoology. Zoology. 3i6 PERIPATUS, MYRIOPODS, AND INSECTS. primitive enteron (or gut), or as a space or spaces in the unsegmented or segmented mesoderm. Now, in Arthropods the apparent body cavity. Fig. I02.—Diagrammatic cross section of an Inverte- brate, with a primary body cavity {be) which is shaded. (After ZiEGLER.) cc, Ectoderm; bl.^ bladder of nephridium (as in Cnistaceans); , excretory duct ; , genital organ ; n., ventral nerve cord ; g.^ gut: yC, funnels of nephridia (as in worms). of the adult is not a true ccelome, it consists of a set of secondarily derived vasc
. Outlines of zoology. Zoology. 3i6 PERIPATUS, MYRIOPODS, AND INSECTS. primitive enteron (or gut), or as a space or spaces in the unsegmented or segmented mesoderm. Now, in Arthropods the apparent body cavity. Fig. I02.—Diagrammatic cross section of an Inverte- brate, with a primary body cavity {be) which is shaded. (After ZiEGLER.) cc, Ectoderm; bl.^ bladder of nephridium (as in Cnistaceans); , excretory duct ; , genital organ ; n., ventral nerve cord ; g.^ gut: yC, funnels of nephridia (as in worms). of the adult is not a true ccelome, it consists of a set of secondarily derived vascular spaces ; it has been called a pseudocoele or a 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 Thomson, J. Arthur (John Arthur), 1861-1933; Newbigin, Marion I. (Marion Isabel), 1869-1934; Smith, Preserved, 1880-1941. fmo. New York, D. Appleton & Co.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1895
