| Cephalodella parasitica is an ectoparasite on oligochaetes like Stylaria lacustris, where it picks small pieces of the cuticula. (1) |
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| Cephalodella parasitica, swimming specimen, lateral view. (1) |
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| Cephalodella parasitica, dorsoventral view, focus plane on the characteristic hood. (1) |
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| Cephalodella parasitica; compressed specimen. (1) |
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| Cephalodella parasitica; two aspects of the trophi. F: fulcrum; M: manubrium; R: ramus; U: uncus (1) |
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| This image shows the anterior part of the oligochaete Nais sp. that is infested by three parasites: most of the external parasites are peritrich ciliates (Rhabdostyla inclinans). The arrowhead points to one of several specimens of C. parasitica. (The arrow points to one of several Albertia naidis specimens which live as endoparasites in the intestinum of Nais sp..) (2) |
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| This image illustrates the force with which the trophi of C. parasitica can capture the integument of Nais sp.. (2) |
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| Cephalodella parasitica; swimming specimen, dorsoventral view. (2) |
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| Location: Rheinberg, NRW, Germany; gravel pit (1); Simmelried near Konstanz, BW, Germany; Sphagnum pond (2) |
| Habitat: Epidermis of Stylaria lacustris (1); on the oligochaete Nais sp. (2) |
| Date: 26.7.2009 (1); 08.10.2018 (2) |
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