Review of the concept of Profilicollis Meyer, 1931 with a description of Profilicollis rancoensis n. sp. (Acanthocephala: Polymorphidae) from the freshwater crab, Aegla abtao Schmitt, 1942 (Decapoda: Anomura) in Chile, with a key to congeneric species

Open Access

Figures 7–10

SEM of cystacanths of Profilicollis rancoensis n. sp. from Aegla abtao in Ranco Lake, northern Patagonia, Chile. (7) A montage of a whole specimen after excystation. (8) A lateral view of a proboscis showing the organization of hooks. Note that some hooks in the posterior circle appear to emanate from the neck. (9) A semi-apical view of a proboscis showing the smaller apical hooks and the external appearance of possible apical organ. (10) Posterior circles of hooks showing the insertion of some posterior-most hooks outside of the actual proboscis in the neck.

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