TL;DR: The morphology, infraciliature and silverline system of a new marine ciliate, Frontonia lynni n.
Abstract: The morphology, infraciliature and silverline system of a new marine ciliate, Frontonia lynni n. sp., isolated from a sandy beach at Qingdao, China, was investigated using live observation and silver staining methods. The new species is recognized by the combination of the following characters: body about 100–210 x 70–150 µm in vivo, elliptical in outline; dorsoventrally flattened (3:1); one large contractile vacuole equatorially located, right of median; 71–83 somatic kineties and three vestibular kineties; small oral cavity with peniculi 1 and 2 each having four ciliary rows and peniculus 3 possesses five gradually shortened rows.
TL;DR: Results illustrated that both the trophic level and predation jointly shaped the ciliate community compositions in Lake Taihu, and spatial variations of the c affiliate community compositions were determined by difference factors among four seasons.
TL;DR: The morphology, infraciliature, and silverline system of Malacophrys viridis sp.n.
Abstract: The morphology, infraciliature, and silverline system of Malacophrys viridis sp.n., a green-yellow coloured ciliate with symbiotic blue-green algae is described. Dying animals discharge a substance with a dark red autofluorescence. This curious ciliate shares features of the classes Kinetofragminophora (basket) and Oligohymenophora (true buccal cavity with two adoral membranelles and a paroral membrane). Its infraciliature and silverline system shows criteria of the orders Prostomatida, Nassulida-, Parahymenostomatida, Hymenostomatida, and Scuticociliatida. This unique combination allows us to create the new family Malacophryidae whose systematic position remains uncertain. Perhaps they are primitive Nassulida or Parahymenostomatida.
TL;DR: Brief discussion is presented concerning the influence of modern ideas of ciliate classification upon what is considered the proper taxonomic position of the Pseudomicrothorax dubius genus.
Abstract: SYNOPSIS. The rather rarely found holotrichous ciliate Pseudomicrothorax dubius, generally considered in the most authoritative literature to be a member of the order Trichostomatida, more likely belongs in the Hymenostomatida. Its curious combination of trans-ordinal characteristics, however, makes difficult exact systematic allocation of it and of the congeneric species P. agilis. The provocative morphological features include: a gymnostome-like cytopharyngeal “basket”; a tetrahymenal buccal apparatus, with membranelles comparable with those of primitive hymenostomes; an advanced semi-autonomous type of stomatogenesis; and sensory bristles, flattened rigid form, and restricted ciliature reminiscent of certain spirotrichs. Brief discussion is presented concerning the influence of modern ideas of ciliate classification upon what is considered the proper taxonomic position of the genus.