On two marine oligotrich ciliates, Spirostrombidium agathae n. sp and S-schizostomum (Kahl, 1932) n. comb. from China, with a key to the identification of seven well-characterized Spirostrombidium spp. (Ciliophora : Oligotrichida)

作者：Xu, Dapeng; Song, Weibo^*; Lin, Xiaofeng; Warren, Alan

来源：Acta Protozoologica, 2006, 45(4): 433-442.

• infraciliature
• morphology
• Spirostrombidium agathae n. sp.
• S. schizostomum n. comb.
• Strombidiidae
• taxonomy

Two marine oligotrich ciliates, Spirostrombidium agathae n. sp. and S. schizostomum (Kahl, 1932) n. comb. (basionym: Strombidium schizostomum Kahl, 1932), were isolated from the littoral zone of coastal waters near Qingdao (Tsingtao), northern China. The morphology and infraciliature of each was studied from live and protargol-stained specimens. The new species S. agathae is distinguished from its congeners by the following combination of characters: small size, distribution of extrusomes, presence of two prolonged thigmotactic membranelles, number of anterior and ventral membranelles, and number of dikinetids in girdle and ventral kineties. The ciliary pattern of the poorly known Strombidium schizostomum Kahl, 1932, which has never been studied using modern methods since it was originally reported, indicates that it should be a member of the genus Spirostrombidium. Thus a new combination, Spirostrombidimn schizostomum (Kahl, 1932) n. comb., is proposed. Based on the present studies and data published previously, a key to the identification of seven well-characterized Spirostrombidium spp. is provided.

• 出版日期2006-11
• 单位中国海洋大学; 华南师范大学