. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. P. pansa P. columellaris FIGURE 5. Sections of Purpura pansa shell (left) and P. columellaris shell (right). Sections were cut through the axis of the shell along the columella such that the right-hand side of the shell is about 1-2 mm from the aperture. Both shells were 45 mm long. Shell layers are designated p, prismatic layer; 1, laminar layer; and r, regenerative Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance o
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. P. pansa P. columellaris FIGURE 5. Sections of Purpura pansa shell (left) and P. columellaris shell (right). Sections were cut through the axis of the shell along the columella such that the right-hand side of the shell is about 1-2 mm from the aperture. Both shells were 45 mm long. Shell layers are designated p, prismatic layer; 1, laminar layer; and r, regenerative 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
