. O'- Fig. 8 a-/. Transverse sections of the central part of the ventral region of the first abdominal segment of Hoplophorus grimaldii Coutiere, Wfith Amallocystis umbellatus , type specimen, a from a slightly more anterior region than b, each following section from a more posterior region. Stalks, trophomeres and gonomeres omitted. Letters as in Fig. 7. x 45. Fig. 8^ shows the organ of fixation in the region in which it attains its largest size. Its middle part is more or less constricted and forms a kind of neck uniting the internal part to the external part. Surrounding the internal p
. O'- Fig. 8 a-/. Transverse sections of the central part of the ventral region of the first abdominal segment of Hoplophorus grimaldii Coutiere, Wfith Amallocystis umbellatus , type specimen, a from a slightly more anterior region than b, each following section from a more posterior region. Stalks, trophomeres and gonomeres omitted. Letters as in Fig. 7. x 45. Fig. 8^ shows the organ of fixation in the region in which it attains its largest size. Its middle part is more or less constricted and forms a kind of neck uniting the internal part to the external part. Surrounding the internal part of the organ of fixation there are a great many large and smaller roots. One of these roots has a rather thick wall. It is the proximal part of one of the larger roots. In Fig. 8 A the external part of the organ of fixation is visible as a triangular mass next to the body wall of the host. The internal part of the organ of fixation and a great number of roots of various sizes are to be seen in the mass of tissue connecting the ventral nerve cord to the body wall, and in the
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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
