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Two Marine Hypotrichs from North China, with Description of Spiroamphisiella hembergeri gen. nov., spec. nov. (Ciliophora, Hypotricha)
並列摘要
The morphology of two hypotrichous ciliates, Spiroamphisiella hembergeri spec. nov. and Anteholosticha pulchra (Kahl 1932) Berger, 2003, isolated from north China sea, has been investigated based on both living and silver-impregnated specimens. One new genus, Spiroamphisiella gen. nov. is established which is distinguished by strongly twisted body; one left and more than one right marginal rows, a single ventral row usually segmented; frontal, buccal, pretransverse, transverse and caudal cirri differentiated. The monotypic species, S. hembergeri is defined as: colorless marine Spiroamphisiella with elongated body; 100-190×25-50 μm in vivo; ca 50 adoral membranelles and 1 buccal cirrus; 3-7 frontal, 4-6 transverse and mostly 2 pretransverse cirri; one left and two right marginal rows; ventral row often in two or three separated fragments composed of 9-23 and 11-19 cirri respectively; 2 macronuclear nodules with up to 3 micronuclei; constantly 3 dorsal kineties, 3 indistinctly caudal cirri. Based on data from the Chinese and other populations, an improved diagnosis for the poorly-known A. pulchra is supplied: brown-reddish marine Anteholosticha, in vivo 120-360×25-55 μm; contractile vacuole positioned at posterior 1/4 of cell length; ca 50 adoral membranelles; 1 buccal, 4 frontal, 2 frontoterminal and 5-8 transverse cirri; long midventral rows composed of 21-38 pairs of cirri, extending posteriorly to transverse cirri; marginal rows with about 50 and 60 cirri respectively; 4 dorsal kineties; cortical granules or pigments dominant, dark-reddish, arranged in groups which form about 4 longitudinal rows on dorsal side; many macronuclear nodules. In S. hembergeri, several divisional features were observed: i) anterior and posterior segments of ventral row are generated from three cirral anlagen; ii) the right marginal row primordium gives rise to only the row 1, while the row 2 inherits the intact old structure.
延伸閱讀
- Gong, J., Lin, X. F., & Song, W. B. (2003). Redescription of a Poorly-known Marine Cyrtophorid Ciliate, Dysteria pusilla (Claparède et Lachmann, 1859) (Protozoa: Ciliophora: Cyrtophorida) from Qingdao, China. Acta Protozoologica, 42(3), 215-221. https://www.airitilibrary.com/Article/Detail?DocID=00651583-200309-201012290010-201012290010-215-221
- Hu, X. Z., Warren, A., & Suzuki, T. (2004). Morphology and Morphogenesis of Two Marine Ciliates, Pseudokeronopsis pararubra sp. n. and Amphisiella annulata from China and Japan (Protozoa: Ciliophora). Acta Protozoologica, 43(4), 351-368. https://www.airitilibrary.com/Article/Detail?DocID=00651583-200412-201012290015-201012290015-351-368
- Li, L. Q., Song, W. B., Rasheid, K. A. S. A., Warren, A., Roberts, D., Gong, J., Zhang, Q. Q., Wang, Y. G., & Hu, X. Z. (2008). Two Discocephalid Ciliates, Paradiscocephalus elongatus nov. gen., nov. spec. and Discocephalus ehrenbergi Dragesco, 1960, from the Yellow Sea, China (Ciliophora, Hypotrichida, Discocephalidae). Acta Protozoologica, 47(4), 353-362. https://www.airitilibrary.com/Article/Detail?DocID=00651583-200812-201101060030-201101060030-353-362
- Park, M. H., & Min, G. S. (2014). A New Marine Cyrtophorid Ciliate, Dysteria nabia nov. spec. (Ciliophora: Phyllopharyngea: Cyrtophorida: Dysteriidae), from South Korea. Acta Protozoologica, 53(3), 257-268. https://doi.org/10.4467/16890027AP.14.023.1998
- Hu, X., & Kusuoka, Y. (2015). Two Oxytrichids from the Ancient Lake Biwa, Japan, with Notes on Morphogenesis of Notohymena australis (Ciliophora, Sporadotrichida). Acta Protozoologica, 54(2), 107-122. https://doi.org/10.4467/16890027AP.15.009.2734