. Embryology of insects and myriapods; the developmental history of insects, centipedes, and millepedes from egg desposition [!] to hatching. Embryology -- Insects; Embryology -- Myriapoda. 176 EMBRYOLOGY OF INSECTS AND MYRIAPODS At this time, , about 10 days after egg deposition, there are 13 pairs of nerve gangha, those of the abdomen as yet less pronounced, none being. 8G.—Isotoma. Sagittal section of posterior end. (abd) Abdominal appendages. igc) Germ cells, (il) Inner layer, (prod) Proctodaeum. found in the sixth segment, and indicated only by the apparent presence of ephemeral neuro
. Embryology of insects and myriapods; the developmental history of insects, centipedes, and millepedes from egg desposition [!] to hatching. Embryology -- Insects; Embryology -- Myriapoda. 176 EMBRYOLOGY OF INSECTS AND MYRIAPODS At this time, , about 10 days after egg deposition, there are 13 pairs of nerve gangha, those of the abdomen as yet less pronounced, none being. 8G.—Isotoma. Sagittal section of posterior end. (abd) Abdominal appendages. igc) Germ cells, (il) Inner layer, (prod) Proctodaeum. found in the sixth segment, and indicated only by the apparent presence of ephemeral neuroblasts in the fifth segment. The head (Figs. 85, 87, ) and thoracic ganglia are well developed; of the three brain segments the tritocerebrum is smallest and postoral in position. The germ cells, 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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