| Ploesoma triacanthum; lateral view. This species is characterised by a mid-ventral foot with two large toes (see image below) and a rigid granulated lorica, which is in contrast to the foam-like integument of Ploesoma hudsoni. Also in focus is one of the paired palps. |
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| Ploesoma triacanthum; dorsoventral view of an empty lorica. The triangles mark the three "thorn"-like projections ("triacanthum") at the anterior part of the head-shield. |
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| Ploesoma triacanthum; virgate trophi, dorsoventral view; specimen from (2) |
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| Fundort: NSG Heiliges Meer, Utricularia-Tümpel, near Erdfallweiher (1) |
| Habitat: plankton (1) |
| Date: 14.04.2012 (1) |
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