I do not recognize this species of Vorticella. There are several colonies of them growing on the spines of some Hornwort plants in my microbe aquarium. These were shot at 10x, 20x and 40x Nikon objectives on a Nikon Fluophot scope.
http://www.youtube.com/watch?v=iVLNQJE1Qjo
An Unidentified Vorticealla - A New Species To Me - Video
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