. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FV. FV B FIGURE 1. Heterocineta phoronopsidis sp. nov. A. Dorsal aspect, from life; B. lateral aspect from right side, from life; C. ventral aspect. Schaudinn's fixative-iron hematoxylin. Drawn with aid of camera lucida. X 1940. c = internal tubular canal, eg = cytoplasmic granule, cv = contractile vacuole, fv = food vacuole, g = dorso-lateral groove, ma = macronucleus, mi — micronucleus. are seen to consist mainly of ingested nuclei or fragments of nuclei from the epi- thelial cells of the tentacles of the host. The contrac
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FV. FV B FIGURE 1. Heterocineta phoronopsidis sp. nov. A. Dorsal aspect, from life; B. lateral aspect from right side, from life; C. ventral aspect. Schaudinn's fixative-iron hematoxylin. Drawn with aid of camera lucida. X 1940. c = internal tubular canal, eg = cytoplasmic granule, cv = contractile vacuole, fv = food vacuole, g = dorso-lateral groove, ma = macronucleus, mi — micronucleus. are seen to consist mainly of ingested nuclei or fragments of nuclei from the epi- thelial cells of the tentacles of the host. The contractile vacuole (Fig. 1, cv) lies near the middle of the body and opens to the exterior on the ciliated ventral surface. I have not distinguished a perma- nent opening in the pellicle. The oval or rod-shaped macronucleus (Fig. 1, ma) is placed dorsally near the center of the body, its longitudinal axis lying obliquely to the longitudinal axis of the body. In ten individuals fixed in Schaudinn's fluid and stained by the Feulgen nuclear reaction on the macronucleus ranged in length from ^ to /j. and in width from 3 ^ to /x. The fusiform, rod-shaped, or crescentic micronucleus (Fig. 1C, mi) is situated anterior to the macronucleus. It is very difficult to distinguish in living specimens and is stained only weakly by iron hematoxylin and the Feulgen nuclear reaction. In ten individuals fixed in Schaudinn's fluid and stained by the Feulgen reaction. 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
