. Embryology of insects and myriapods; the developmental history of insects, centipedes, and millepedes from egg desposition [!] to hatching. Embryology -- Insects; Embryology -- Myriapoda. a. be Dorsal Lateral Ventral Fig. 61.—Plan of the presumptive organ anlagen for the blastoderm stage, (a) dorsal side of egg, (b) left side, (c) ventral side, (abd) Abdomen aniage. (ant) Antenna anlage. {eye) Eye anlage. (0 Labrum anlage. {maiid) Mandible anlage. {max 1-2) Maxillae anlagen. {th 1-3) Thoracic segment anlagen. (s. oes. g) Supra-esophageal ganglion anlage. (Modified from Seidel, 1935.). Abdome
. Embryology of insects and myriapods; the developmental history of insects, centipedes, and millepedes from egg desposition [!] to hatching. Embryology -- Insects; Embryology -- Myriapoda. a. be Dorsal Lateral Ventral Fig. 61.—Plan of the presumptive organ anlagen for the blastoderm stage, (a) dorsal side of egg, (b) left side, (c) ventral side, (abd) Abdomen aniage. (ant) Antenna anlage. {eye) Eye anlage. (0 Labrum anlage. {maiid) Mandible anlage. {max 1-2) Maxillae anlagen. {th 1-3) Thoracic segment anlagen. (s. oes. g) Supra-esophageal ganglion anlage. (Modified from Seidel, 1935.). Abdomen Head jGnathos Thorax I Abdomen 40hrs. a 66hrs C 51 hrs. b luni-t = 24|j Fig. 62.—Graphic representation of the shifting of the anlage regions of the left side of the egg in reference to the movement of cell nuclei, (a) Blastoderm stage through (6), cell aggregation to form the germ band, to (c) the completed embryo anlage. Abscissa: time in hours after the two-nuclei stage. Ordinate: number of divisions from the posterior pole of the egg (one division equals 24ju). {Modified from Seidel, 1935.). 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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Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
