| Colurella obtusa, feeding on the bacteria growing on a Vaucheria alga (2) |
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| Colurella obtusa, lateral view; the arrowhead points to the hood. (2) |
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| Colurella obtusa, lateral view, specimen with retracted head (1) |
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| Colurella obtusa, ventral view, focus plane on the two eyespots and the ventral gap between the two plates of the lorica. (2) |
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| Colurella obtusa, specimen from (3), lateral view. Br: brain; Ci: Cilia; DA: dorsal antenna; F: foot; GG: gastric glands; Gv: germovitellarium; In: intestinum; Mx: mastax: T: toes. The structure labelled "?" may be the RCO. Also visible is the red eyespot. |
| Location: Wahner Heide near Cologne/ Germany (1); Ohligser Heide (2); Ruhr-University Bochum. pond (3) |
| Habitat: between Sphagnum (1); (2); periphyton (3) |
| Date: 27.12.2010 (2); 12.01.2016 (2); 01.09.2013 (3) |
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