. The embryology of the honey bee. Honeybee; Bees. THE EMBRYOLOGY OF THE HONEY BEE 143 (VIII) is actually composed of cells of just this character (Fig. 52, Ant). If these groups of small cells represent the antennal rudiments, then the antennae originate caudad of the future mouth, since its location on the germ band is marked by the point Hyp MescK 2 Br-,.. NIG Fig. 52. Transverse section through the head of an embryo, Stage IX, showing the three principal divisions of the brain (iBr, 2Br, 3Br). and the antennal rudiment {Ant), x 387. where the cells of the anterior mesenteron rudiment come
. The embryology of the honey bee. Honeybee; Bees. THE EMBRYOLOGY OF THE HONEY BEE 143 (VIII) is actually composed of cells of just this character (Fig. 52, Ant). If these groups of small cells represent the antennal rudiments, then the antennae originate caudad of the future mouth, since its location on the germ band is marked by the point Hyp MescK 2 Br-,.. NIG Fig. 52. Transverse section through the head of an embryo, Stage IX, showing the three principal divisions of the brain (iBr, 2Br, 3Br). and the antennal rudiment {Ant), x 387. where the cells of the anterior mesenteron rudiment come to the surface. At Stage VIII the procephalic lobes have undergone considera- ble change both in position and form. The entire germ band has increased in length, thereby bringing its anterior end around the cephalic pole of the egg, so that the procephalic lobes are now curved in a semicircle, their anterior ends lying on the dorsal side of the egg and directed toward the caudal pole. The procephalic lobes have meanwhile become subdivided into three lobes, the three pairs constituting respectively the proto- cerebrum, deutocerebrum and tritocerebrum, each of which rises. 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
