Polycelis nigra (wiki)
Kingdom: Animalia
Phylum: Platyhelminthes
Class: Acentrosomata
Order: Tricladida
Family: Planariidae
Genus: Polycelis
Species: nigra
Date: 2019-05-09
Place: 49.292374, 16.726547 (CHKO Moravsky kras - propadani Krtinskeho potoka)
Observer: sumie-dh
Biotope: benthos, under stones
River: Křtinský potok - Svitava
Bedrock: Igneous and metamorphic rocks, Palaeozoic sedimentary rocks, loess
Collecting method: manual - brush
Individuals found: 7
Duration on stage: 15
Description: Small amount of palanrians discovered in water of lower sensoric quality [smell of canalisation].
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