Abstract
There are six rows of minute, tegumental spines on the most anterior tip ofAporocotyle simplex. This area of the body which, especially in small specimens, is similar to a sucker, is the area earlier observed protruding as a snout in some living flukes, and the observations indicate that it functions as an attachment organ. Occasional cilium-like structures and different types of bulbs, with or without apical cilium-like structures, all presumed to be sensory receptors, are found on different parts of the body.
Clusters of marginal spines occur on tegumental bosses, which are similar to those found inSchistosoma spp. The spines are probably adjustable and may be entirely withdrawn under the tegumental surface of the fluke.
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Thulin, J. Scanning electron microscope observations ofAporocotyle simplex Odhner, 1900 (Digenea: Sanguinicolidae). Z. Parasitenkd. 63, 27–32 (1980). https://doi.org/10.1007/BF00927723
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DOI: https://doi.org/10.1007/BF00927723