| Gastropus minor: lateral view, has two toes. The red eyespot is also visible. |
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| Gastropus minor: the cells of the stomach wall are brown or green with chromatophores incorporated intracellularly from ingested algae. (2) |
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| Gastropus minor; two aspects of the trophi (2). In contrast to Gastropus hyptopus the tips of the rami have no dents. |
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| Gastropus minor; specimen from (3); the arrowhead points to the dorsal antenna, which -in contrast to G. stylifer- is located in the last third of the lorica. (3) |
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| Location: water reservoir Heilenbecker Talsperre / Ennepetal/ NRW (1;2); NSG Heiliges Meer, Nähe Erdfallsee (3) |
| Habitat: Plankton (1,2); Periphyton (3) |
| Date: 15.04.2010 (1); 26.5.2012 (2); 15.05.2011 (3) |
