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| Ptygura furcillata Kellicott 1889 |
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| Ptygura furcillata; whirling specimen, dorsoventral view |
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| Ptygura furcillata, lateral view; head retracted. |
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| Ptygura furcillata; focus plane on the distinctive "pitchfork", which -according to Kellicott- is a transmutation of the dorsal antenna. |
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| Location: Gevelsberg, Grünes Klassenzimmer (pond) |
| Habitat: on leafs of Potamogeton pectinatus. |
| Date: 19.09.2005 |
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