. Embryology of insects and myriapods; the developmental history of insects, centipedes, and millepedes from egg desposition [!] to hatching. Embryology -- Insects; Embryology -- Myriapoda. 174 EMBRYOLOGY OF INSECTS AND MYRIAPODS distinctly separated into right and left halves and covered dorsally by a single layer of Fig. 82.—Isotoma. Cross section of thorax, (cod) Coelome. {ect) Ectoderm. Middle strand of inner layer. (71c) Nerve cord, {th) Thoracic appendage. (mds) The invagination of the embryo into the yolk by buckling of the thoracic section now has reached its maximum (Figs. 83,
. Embryology of insects and myriapods; the developmental history of insects, centipedes, and millepedes from egg desposition [!] to hatching. Embryology -- Insects; Embryology -- Myriapoda. 174 EMBRYOLOGY OF INSECTS AND MYRIAPODS distinctly separated into right and left halves and covered dorsally by a single layer of Fig. 82.—Isotoma. Cross section of thorax, (cod) Coelome. {ect) Ectoderm. Middle strand of inner layer. (71c) Nerve cord, {th) Thoracic appendage. (mds) The invagination of the embryo into the yolk by buckling of the thoracic section now has reached its maximum (Figs. 83, 84). The dorsal organ (do) now lies in the neck region of the embryo covered laterally by the body wall and in part by the serosa. The yolk is still completely. 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 Johannsen, O. A. (Oskar Augustus), 1870-1961; Butt, Ferdinand Hinckley, 1899-. New York, London, McGraw-Hill Book Company, inc.
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