. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. A NEW GENUS OF IIYDROII) 331 the ring of basal tentacles. The young medusa; are about one mm. long when first set free. A single short tentacle densely covered with nematocysts is present. The four tentacle bulbs around the rim of the ovoid bell contain red pigment. In addition to those of the tentacle bulbs and tentacle, nematocysts are sparsely scattered over the entire bell. The ovoid bodies (Plate IV) enveloped in the hydrorhiza are. PLATE IV. Dahlgrenella farcta, development of asexual reproductive bodies (orientation n
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. A NEW GENUS OF IIYDROII) 331 the ring of basal tentacles. The young medusa; are about one mm. long when first set free. A single short tentacle densely covered with nematocysts is present. The four tentacle bulbs around the rim of the ovoid bell contain red pigment. In addition to those of the tentacle bulbs and tentacle, nematocysts are sparsely scattered over the entire bell. The ovoid bodies (Plate IV) enveloped in the hydrorhiza are. PLATE IV. Dahlgrenella farcta, development of asexual reproductive bodies (orientation not shown). Body constricting off from foot, 1; body after constric- tion (which may be followed by subsequent division), 2; body dividing, 3; body after division (which may be followed by further division), 4; developing hydroid with first appearance of tentacles and frustules, 5; older hydroid with appearance of perisarcal region, 6; older hydroid with well differentiated tentacles, 7. The hydroid usually penetrates the enveloping hydrorhiza between the stages 5 and 6. formed by fission of the foot and in some cases redivision of the parts constricted off from it. Rudimentary tentacles and frustules appear in. 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
