Abstract
FIG. 1 is a diagram of the sucker of Echeneis taken after staining it with alizarin red and rendering it transparent in glycerin. This reveals the presence of a chamber below the posterior shield of the sucker, about which no mention has so far been made in the literature. Hora1, who at first doubted whether the sucker was a real sucker, later was convinced that the outer rim functioned as a sucker and that there were smaller paired suckers as well; Sewell's3 observations confirmed this.
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References
Hora, Nature, 111, 68 (1923).
Hora, Nature, 115, 47 (1925).
Sewell, Nature, 115, 48 (1925).
Norman, Nature, 143, 52 (1939).
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BONNELL, B. Structure and Action of the Sucker of Echeneis . Nature 191, 403 (1961). https://doi.org/10.1038/191403a0
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DOI: https://doi.org/10.1038/191403a0
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