A conjugating pair of Acanthostomella norvegica from the Chukchi Sea in 2012. Z stack of images made with a 60x objective, DIC optics, lugol's preserved specimens.
Tracheloraphis oligostriata is marine karyorelictid ciliate. This ciliate was collected from a sandy beach (3606N; 12034E) at Qingdao, China. Image taken by Ying Yan.
Favella Ehrenbergii (as Tintinnus ehrenbergii) based on specimens found near Bergen, Norway; text is on pp 203-204. Plate 8 legend states that the drawings are of the same individual: the cell extended vibrating its cilia, the cell contracted within the lorica. 'vc' denotes contractile vacuole and 'w' 'anus' or cytoproct. From Claparde, E., Lachmann, J. 1858-1860. Etudes sur les infusoires et les rhizopodes. Mmoires de l'instut Genevois, 5, 6 & 7.
The species now known as Peniculistoma mytili was first described as Conchopthirus mytili by William De Morgan in 1925 in an article in the Journal of the Marine Biological Association (vol 13, 600-660).