1887

Abstract

This paper investigates the morphology, infraciliature and small-subunit (SSU) rRNA gene sequences of two hypotrichous ciliates, n. sp., and (Wallengren, 1900) n. comb. (basionym ), collected from coastal waters in southern China. n. sp. is diagnosed mainly by the arrangement of brownish cortical granules, the numbers of adoral membranelles and frontal and transverse cirri and the characteristics of its midventral cirral pairs. The SSU rRNA gene phylogeny strongly supports the establishment of the new genus n. gen., which is characterized mainly by the following features: frontal and transverse cirri clearly differentiated, buccal cirri present, two frontoterminal cirri, midventral complex composed of midventral pairs only and not exceeding the halfway point of the cell, more than one row of marginal cirri on each side which derive from individual anlagen within each parental row, caudal cirri lacking. Thus, two new combinations are required: (Lei , 2005) n. comb., and (Wang , 2011) n. comb. Additionally, improved diagnoses for both and are supplied in this study. (Wallengren, 1900) n. comb. differs from the similar congener mainly in body shape, ratio of buccal field to body length and molecular data. Based on the present studies, we conclude that the estuarine population of collected by J. Gong and others [Gong , (2007) , 468–478] is a population of .

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2013-03-01
2019-09-21
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