Otostephanos donneri BARTOS 1959
Otostephanos donneri; swimming. The rings around the trochal discs are clearly visible (arrowheads). The unfolded wheel organ could only be observed when the animal was swimming.
Otostephanos donneri; whirling for starting to swim, showing the ring around the trochal discs. The content of the stomach is yellowish or reddish.
Otostephanos donneri; creeping, showing the two-lobed lamella, the trophi with dental formula 9/9 and the long, needle-shaped toes.
Otostephanos donneri; left image: crop of above image showing the trophi with dental formula 9/9. right image: foot with transversal knob on 1st segment (arrowhead).
Otostephanos donneri; specimen from (2), where this species was found in great numbers
Location: Passo di Lavazè (1800m), Trentino, Italia, lake (1); Wertach, billabong near Bobingen, Bavaria, Germany (2)
Habitat: Periphyton with Fragilaria sp. and other Diatoms, Spirogyra sp., Desmidium swartzii, together with Philodina megalotrocha (1); Periphyton (2)
Date: coll. 28.09.2013 (img: 30.09.2013); 02.04.2014 (2);
Identification by courtesy of Nataliia Iakovenko, University of Ostrava, Czech republic.
freshwater life
procaryota
algae
plants
protists
"worms"
molluscs
arthropods
marine life
mediterranean
tropical
misc
impresssum
plingfactory