%0 Journal Article %T Morphology of Two Eschaneustyla Species (Ciliophora, Urostylida), with Notes on Morphogenesis of Eschaneustyla lugeri %A Deng, Yufan %A Lu, Xiaoteng %A Li, Jingbao %A Ba, Sang %A Paiva, Thiago da Silva %J Acta Protozoologica %V 2018 %R 10.4467/16890027AP.18.007.8981 %N Volume 57, Issue 2 %P 69-78 %K Ciliates, infraciliature, ontogenesis, urostylid %@ 0065-1583 %D 2018 %U https://ejournals.eu/en/journal/acta-protozoologica/article/morphology-of-two-eschaneustyla-species-ciliophora-urostylida-with-notes-on-morphogenesis-of-eschaneustyla-lugeri %X In this study, morphology of a Brazilian population of Eschaneustyla terricola Foissner, 1982 and a Chinese population of E. lugeri Foissner, Agatha & Berger, 2002 were studied based on living observation and protargol impregnation. Several stages of morphogenesis in E. lugeri were reported and the most remarkable features are characterized as follows: (1) partly renewal of adoral zone of membranelles in the proter and the parental midventral cirri do not join the construction of the opisthe’s oral primordium; (2) three or four buccal cirri each develop from one frontoventral cirral anlage and undulating membranes anlage generates two frontal cirri; (3) frontoventral cirral anlagen n and n-1 develop de novo and in the frontoterminal cirral row, respectively; (4) intrakinetal development of marginal and dorsal kineties anlagen; (5) fusion of macronuclear nodules into a single mass.