. The embryology of the honey bee. Honeybee; Bees. -Meso -AMR (Mint). W* >.<« tr^ PMR (Mint) Meso--'' Meso Fig. 88. Anterior (A) and posterior (B) ends of a median sagittal section through an embryo; Stage IX, showing the anterior (AMR) and posterior (PMR) mesenteron rudiments, which have now united along the dorsal surface of the egg. The stomodaeal invagination (Stom) is well developed, while the protodaeal invagination (Proc) is indicated by a slight depression, x 243. present (Fig. 89A). The next and final step, which takes place about the time of hatching, involves the actual invagi
. The embryology of the honey bee. Honeybee; Bees. -Meso -AMR (Mint). W* >.<« tr^ PMR (Mint) Meso--'' Meso Fig. 88. Anterior (A) and posterior (B) ends of a median sagittal section through an embryo; Stage IX, showing the anterior (AMR) and posterior (PMR) mesenteron rudiments, which have now united along the dorsal surface of the egg. The stomodaeal invagination (Stom) is well developed, while the protodaeal invagination (Proc) is indicated by a slight depression, x 243. present (Fig. 89A). The next and final step, which takes place about the time of hatching, involves the actual invagination of the inner end of the stomodaeum—now the oesophagus—into the mid-intestine, and the rupture of the closing membrane. This rupture seems to be caused mechanically by pressure of the inva-. 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 Nelson, James Allen. Princeton : Princeton University Press
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectbees, bookyear1915
