. Text-book of embryology. Embryology. IV PEONEPHEOS 233 becomes apparent. The fully functional pronephros has two tubules on each side, corresponding to the segments above mentioned: it may be presumed that these are the survivors of, a once greater number, though there is no record of other rudiments having been actually Fig. 129a.—Development of the pronephros in Lepidosiren as shown in transverse sections. D, stage 30 ; E, stage 31+. A, dorsal aorta ; , archinephric duct; end, endoderra ; gl, glome- rulus ; li, liver; my, myotome; N, notochord; tic, nephrocoele; oes, oesoph
. Text-book of embryology. Embryology. IV PEONEPHEOS 233 becomes apparent. The fully functional pronephros has two tubules on each side, corresponding to the segments above mentioned: it may be presumed that these are the survivors of, a once greater number, though there is no record of other rudiments having been actually Fig. 129a.—Development of the pronephros in Lepidosiren as shown in transverse sections. D, stage 30 ; E, stage 31+. A, dorsal aorta ; , archinephric duct; end, endoderra ; gl, glome- rulus ; li, liver; my, myotome; N, notochord; tic, nephrocoele; oes, oesophagus; pn, pronephric tubule ; , posterior vena cava ; splc, splanchnocoele. Actinopteeygii.—The acquirement of a thorough knowledge of the development in the more primitive members of the group—the ganoids—is an essential preliminary to the proper comprehension of the development of the more highly evolved Teleosts but un- fortunately our knowledge of renal development in the ganoids is still far from 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
