| Pleurotrocha sigmoidea, lateral view. This species maybe confused with P. petromyzon, which has a cervical eyespot, which P. sigmoidea is lacking. |
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| Pleurotrocha sigmoidea, dorsal view |
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| Pleurotrocha sigmoidea, lateral view of a slightly compressed specimen. Visible are the foot glands and the vitellarium with 8 nuclei. |
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| Pleurotrocha sigmoidea, trophi, focus plane on incus und manubrium. |
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| Pleurotrocha sigmoidea, trophi, focus plane on the unci |
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| Pleurotrocha sigmoidea, the arrow points to a specimen living as epibiont on the larva of a stonefly. (9.2009) |
| see also >>> Pleurotrocha petromyzon |
| Location: Stefansbachtal Gevelsberg, Grünes Klassenzimmer,Teich |
| Habitat: between the Nitella mucronata/ epibiontic on insect larvae |
| Date: 24.5.2008 |
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