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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Ref ID : 593

Dieter Ammermann and Martin Schlegel; Characterization of Two Sibling Species of the Genus Stylonychia (Ciliata, Hypotricha): S. mytilus Ehrenberg, 1838 and S. lemnae n. sp. I. Morphology and Reproductive Behavior. J.Protozool. 30(2):290-294, 1983

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All Stylonychia mytilus-like ciliates which were collected and sent to us during the last 20 years belonged either to S. mytilus to a new species, S. lemnae, which is described here. The only morphological differences are the shape and the size. Stylonychia mytilus that have been starved for one day average 300 um in length, and S. lemnae starved a day are 230 um long. The occurrence of mating types is described.