. Carnegie Institution of Washington publication. 88 SIDERASTREA RADIANS. wall of two contiguous polyps is common along the lines of adherence, and the outline, instead of being circular, becomes more or less polygonal as a result of the mutual pressure. The protoseptal stage was completed in nearly all cases within the first. xb -^'. 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 Carnegie Institution of Washington. Washin
. Carnegie Institution of Washington publication. 88 SIDERASTREA RADIANS. wall of two contiguous polyps is common along the lines of adherence, and the outline, instead of being circular, becomes more or less polygonal as a result of the mutual pressure. The protoseptal stage was completed in nearly all cases within the first. xb -^'. 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 Carnegie Institution of Washington. Washington, Carnegie Institution of Washington
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