. Elementary text-book of zoology. 496 CHORD AT A. Fig. 340. —Diagram of Phascolarctos {Koala) Embryo and ITS Fcetal Membranes. (Modified from Semon). Yolk-sac. Allantoic. Yolk-sac. Amnion. Prokalymma. Note the yolk-sac villi, but none to the allantois. Fig. 341.—Diagram of Hypsoprymnus (A Kangaroo) Embryo IN ITS Fcetal Membranes. (Modified from Semon.) Amnion. Yolk-sac. 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
. Elementary text-book of zoology. 496 CHORD AT A. Fig. 340. —Diagram of Phascolarctos {Koala) Embryo and ITS Fcetal Membranes. (Modified from Semon). Yolk-sac. Allantoic. Yolk-sac. Amnion. Prokalymma. Note the yolk-sac villi, but none to the allantois. Fig. 341.—Diagram of Hypsoprymnus (A Kangaroo) Embryo IN ITS Fcetal Membranes. (Modified from Semon.) Amnion. Yolk-sac. 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 Masterman, Arthur Thomas. Edinburgh, E. & S. Livingstone
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Keywords: ., bookcentury1900, bookcollectionbiod, bookdecade1900, bookyear1902
