Protistology 3 (4) 219–222 (2004)
Stylonychia harbinensis sp. n., a new oxytrichid ciliate (Ciliophora, Hypotrichia) from the Heilongjiang Province, China
Shi Xin-Bai 1 and Dieter Ammermann 2
1 Department of Biology, Harbin Normal University, Harbin, China
Stylonychia harbinensis sp. n. is widely distributed in fresh waters around Harbin, China. It belongs to the S. mytilus-complex (S. mytilus, S. lemnae and S. ammermanni). It is 142 x 58 μm in size (Protargol-impregnated cells) and usually has 2 large micronuclei (5 μm in diameter). S. harbinensis sp. n. has much smaller cells than S. mytilus and S. lemnae, and larger micronuclei than S. ammermanni. The new species also has a unique pattern of dorsal bristles. S. harbinensis sp. n. does not conjugate either with other species of the S. mytilus complex or with other Stylonychia species.
Key words: Stylonychia harbinensis sp. n., Stichotricha, Ciliophora
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