. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. STABILIZATION OF THE VISUAL FIELD 293 A similar mechanism appears to control the distal segment of the eyestalks in Podophtlialnnis and which possess .statocysts with specialized hairs hut no statoliths. In these marine crabs of shallow coastal water, the proximal segment of the eyestalk is greatly elongated, whereas the distal segment is scarcely larger than the compound eye (Balss, 1940). According to Mr. Bryant Sather (personal communication). Podophthalmus I'iyil of Hawaii holds its proximal segments at 45 to
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. STABILIZATION OF THE VISUAL FIELD 293 A similar mechanism appears to control the distal segment of the eyestalks in Podophtlialnnis and which possess .statocysts with specialized hairs hut no statoliths. In these marine crabs of shallow coastal water, the proximal segment of the eyestalk is greatly elongated, whereas the distal segment is scarcely larger than the compound eye (Balss, 1940). According to Mr. Bryant Sather (personal communication). Podophthalmus I'iyil of Hawaii holds its proximal segments at 45 to 50 degrees above the horizontal by day, and about 10 degrees at night (Fig. 4). \Yhen feeding in silt that envelops the body completely, Podophthalmus may raise its proximal segments to a still greater angle, perhaps *"* •"v :..'• water above silt normal daytime position of distal segment. ocular, groove Podophthalmus vigil ?. 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
