. Animal studies. Fig. 153.—The wide eyed flounder (Platophrys lunatus). Adult, showing both eyes on upper side of head. the upper side. In some related forms or soles the small eye passes through the head and not around it, appearing finally in the same socket with the other eye. Thus in almost all the great groups of animals we find certain kinds which show metamorphosis in their post- embryonic development. But metamorphosis is simply development; its striking and extraordinary features are usually due to the fact that the orderly, gradual course of the development is revealed to us only oc
. Animal studies. Fig. 153.—The wide eyed flounder (Platophrys lunatus). Adult, showing both eyes on upper side of head. the upper side. In some related forms or soles the small eye passes through the head and not around it, appearing finally in the same socket with the other eye. Thus in almost all the great groups of animals we find certain kinds which show metamorphosis in their post- embryonic development. But metamorphosis is simply development; its striking and extraordinary features are usually due to the fact that the orderly, gradual course of the development is revealed to us only occasionally, with the result of giving the impression that the development is proceeding by leaps and bounds from one strange stage to. Fig. 154.—Development of a flounder (after Emert). The eyes in the young flounder are arranged normally, one on each side of head. another. If metamorphosis is carefully studied it loses its aspect of marvel, although never its great 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 Jordan, David Starr, 1851-1931; Kellogg, Vernon L. [from old catalog].
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Keywords: ., bookauthorjordanda, bookcentury1900, bookdecade1900, bookyear1903
