. Text-book of embryology. Embryology. vise Fig. 454. —Transverse sections through the brains of Ascidian tadpoles to illustrate the development ot the hypophysial tube and of the adult ganglion. (After Willey.) A, B, sections through brain of a newly-hatched tadpole of Cimux intestinalis : A, the more anterior section, shows the pigmented otolith and the hypophysial canal running in the wall of the brain-vesicle; B, the more posterior section, shows the hypophysial canal opening into the brain-vesicle and the cup- shaped support for the otolith. C, section through the brain of a just-fixed ta
. Text-book of embryology. Embryology. vise Fig. 454. —Transverse sections through the brains of Ascidian tadpoles to illustrate the development ot the hypophysial tube and of the adult ganglion. (After Willey.) A, B, sections through brain of a newly-hatched tadpole of Cimux intestinalis : A, the more anterior section, shows the pigmented otolith and the hypophysial canal running in the wall of the brain-vesicle; B, the more posterior section, shows the hypophysial canal opening into the brain-vesicle and the cup- shaped support for the otolith. C, section through the brain of a just-fixed tadpole of Ciona intestiTUdis, showing the degenerating larval brain and the hypophysial tube above it. D, section through the brain of a young Ciona intestinalis, showing the adult ganglion as a new formation on the dorsal wall of the hypophysial tube. E, F, sections through the brain of a tadpole of Glavelina lepadiformis: E, the more anterior section, shows the brain-vesicle and the origin of the hypophysial tube and of the adult cant'lion from its wall; F, the more posterior section, shows the cavities of the nerve tube and of the hypophysial tube and the larva visceral ganglion, , brain-vesicle; , rudiment of adult ganglion; , visceral ganglion; hyp, hypophysial tube; , nerve tube; oc, degenerating remnant of the larval eye ; ot, otolith and its 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 MacBride, E. W. (Ernest William), 1866-1940; Kerr, John Graham, 1869-; Heape, Walter, 1855-1929. London : Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, bookpubli, booksubjectembryology
