. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. OBSERVATIONS ON LIVING SOLENOMYA. 279 are distinct species. It is surprising, however, to see how closely they resemble one another (Fig. 20). At first sight S. borealis seemed to be an enlarged S. velum. The color of the foot and ventral membrane varies. In 61. borealis the foot is a light brown with a tinge of purple, darker on the ventral keel, with a darker blotch near the ventral portion. The papillae on the edge of the. FIG. 20. Side view of 5. borealis, natural size. pedal disk were longer and sharper than in S. velum
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. OBSERVATIONS ON LIVING SOLENOMYA. 279 are distinct species. It is surprising, however, to see how closely they resemble one another (Fig. 20). At first sight S. borealis seemed to be an enlarged S. velum. The color of the foot and ventral membrane varies. In 61. borealis the foot is a light brown with a tinge of purple, darker on the ventral keel, with a darker blotch near the ventral portion. The papillae on the edge of the. FIG. 20. Side view of 5. borealis, natural size. pedal disk were longer and sharper than in S. velum though the same in number. The tubercles on the edge of the mantle open- ing were the same in number and position, standing out at right angles from the ventral membrane. Their color, like the mem- brane, was brownish, the tips of the tubercles being dark brown. No trace of a white pigment-like color on ventral membrane. 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
