. Text-book of embryology. Embryology. at tail. Fig. 453.—Illustrating the metamorphosis of the tadpole of Qiona intestinalis. (After Willey.) A, young tadpole just after fixation, seen from the right side—the mouth is still in the larval position and the tail is just beginning to degenerate. B, young fixed dona, in which the mouth is rotated up- wards and the tail is reduced to agranular mass. C, young fixed Cionaj in which the mouth has attained the upper pole of the animal and inwhich the tail has disappeared, a, anus; at, atrial canal; , brain-vesicle; endst, endostyle; , adult
. Text-book of embryology. Embryology. at tail. Fig. 453.—Illustrating the metamorphosis of the tadpole of Qiona intestinalis. (After Willey.) A, young tadpole just after fixation, seen from the right side—the mouth is still in the larval position and the tail is just beginning to degenerate. B, young fixed dona, in which the mouth is rotated up- wards and the tail is reduced to agranular mass. C, young fixed Cionaj in which the mouth has attained the upper pole of the animal and inwhich the tail has disappeared, a, anus; at, atrial canal; , brain-vesicle; endst, endostyle; , adult ganglion; ^, the first four gill-slits; hyp, hypophysial canal; int, intestine; m, mouth; mn, chin (mental ;process); , nerve cord; , nerve tube; oes, oesophagus; pCy pericardial sac; pph, peripharyngeal ciliatg4 band ; , pyloric gland ; st, stomach. m. 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
Size: 1195px × 2092px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookpubli, booksubjectembryology
