. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. f^-asw ^^^^^•Htf 4 , Ml1, ,i III SK/ ^ " m . .1 .<.. Figure 1. A section through the gill of Drci\\enu polymorpha showing portions of three filaments stained with toluidine blue. Note the relative position of frontal cilia (ft. latero-frontal cirri (c). and lateral cilia (II. along the filament. In addition to the three cell types with cilia, there is a set of indifferent epithelial cells (e) between the lateral ciliated cells and the latero-frontal cells. Water moves from the surface of the filaments through the ost
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. f^-asw ^^^^^•Htf 4 , Ml1, ,i III SK/ ^ " m . .1 .<.. Figure 1. A section through the gill of Drci\\enu polymorpha showing portions of three filaments stained with toluidine blue. Note the relative position of frontal cilia (ft. latero-frontal cirri (c). and lateral cilia (II. along the filament. In addition to the three cell types with cilia, there is a set of indifferent epithelial cells (e) between the lateral ciliated cells and the latero-frontal cells. Water moves from the surface of the filaments through the ostial opening (o) into the water canal (w•). through the internal ostia (i) and into the central water channel (we). The water canals on both sides of a filament enter the central water channel through one common internal opening. Note that there are no goblet-type mucus (mi-producing cells among the cells making up the surface epithelium of the filament, but they are present at the filament base near the ostial opening and in the central water channel. Bar = 25 urn. Figure 2. An electron micrograph collage showing the epithelial cells of the filament: frontal epithelial cells (0; pro-lateral-frontal epithelial cells (p). latero-frontal cirral cells (c): indifferent epithelial cell (e): lateral ciliated cell (1); mucus cell (m). cirri (C), pro-latero-frontal cilia (arrowhead), and lateral cilia (L). The connective tissue skeleton of the filament (CT) is also notable. Bar = 5 ^ 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
