File:The Biological bulletin (20384995471).jpg

Title: The Biological bulletin
Identifier: biologicalbullet182mari (find matches)
Year: [1] (s)
Authors: 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
Subjects: Biology; Zoology; Biology; Marine Biology
Publisher: Woods Hole, Mass. : Marine Biological Laboratory
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library

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250 G. O. MACKIE ET AL.
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Figure 2. Surface view of a sub-tentacular comb row in living animal, showing four comb plates whose cilia are laid down flat on the surface, and giant axon chain (g). Scale bar: 100 jim. Figure 3. One (1.0) fim section cut transversely but at a slight angle through a comb plate showing massed cilia (dark mass, upper right) arising from polster cells, and giant axons (g). Gametes are seen in the underlying endodermal canal. Scale bar: 50 /jm. some overlap. In typical sections, one or two axon profiles, but not more, are seen, showing that the neurites must be quite short, probably less than 400 ^m. In their thicker regions, they show diameters of approximately 8.5-12.0 Mm (X = 9.7, SD = 1.02, n = 10), but they taper towards the ends. Allowing for shrinkage during fixation and embedding, the axons are probably at least 12 /urn in the living animal, which is also suggested by measurements

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