Litonotus hirundo Penard, 1920

Litonotus hirundo — Rosa 1957: 228; Matis 1988: 58.

Main morphological characters (according to Kahl 1931). Length 60–80 µm in vivo. Body lanceolate with narrowly rounded posterior body end; left side vaulted with four longitudinal furrows. Two macronuclear nodules with a single micronucleus in between. Contractile vacuole shown as terminal, but described as subterminal. Extrusomes broadly fusiform, 3 µm long, scattered in cytoplasm and possibly also attached to oral bulge. Somatic ciliary pattern Litonotus -like; about 6 right kineties.

Distribution. This species was reported from soils with dense plant covers near Javorina in the Tatra National Park (Rosa 1957) and from organic mud of activated sludge plants in the town of Bratislava (Matis 1988).