单身汉是海洋沙质潮间带中常见的纤毛虫,然而,使用现代分类技术描述的物种很少,由于前面的几个描述仍然缺乏主要数据,如口腔纤毛的详细描述。出于这个原因,肯特丝花科的系统学,1881年产生了共生属,需要进行严格的修订。为了填补这个群体的知识空白,这项研究提出了一个新的物种描述,Tracheloraphisapodiscolorn.sp.,以及对三个鲜为人知的单身汉物种的重新描述,Trachelocercabodiani(Dragesco,1963)Dragesco,2002年,单身汉(赖特,1982)Foissner&Dragesco,1996年和Prototrachelocercafasciolata(Sauerbrey,1928年)福斯纳,1996年,从青岛(中国)沿海海洋栖息地收集,使用活的和protargol染色的标本。Tracheloraphisapodiscolorn.sp.可以与其最密切相关的同源物区分开来,T.变色,通过较短的身体长度和较少的躯体运动。T.aporiscolorn.sp.的分子数据。T.bodiani是第一次提供。此外,根据青岛人口,我们为T.ditis和P.fasiolata提供了改进的诊断。进行了系统发育分析并进行了讨论,因为对单身汉属和单身汉属有强烈的支持。总的来说,基于分类法的更多综合研究,需要超微结构和分子数据才能正确阐明单身汉的系统学。
Trachelocercids are common ciliates in marine sandy intertidal zones, however, only few species have been described using modern taxonomic techniques, with several earlier descriptions still lacking primary data, such as a detailed description of the oral ciliature. For this reason, systematics of the family Trachelocercidae Kent, 1881 resulted in paraphyletic genera and needs a critical revision. As an attempt to fill the gap of knowledge for this group, this study presents one new species description, Tracheloraphis apodiscolor n. sp., along with redescriptions of three lesser-known trachelocercid species, Trachelocerca bodiani (Dragesco, 1963) Dragesco, 2002, Trachelocerca ditis (Wright, 1982) Foissner & Dragesco, 1996 and Prototrachelocerca fasciolata (Sauerbrey, 1928) Foissner, 1996, collected from coastal marine habitats at Qingdao (China), using live and protargol-stained specimens. Tracheloraphis apodiscolor n. sp. can be distinguished from its closest related congener, T. discolor, by a shorter body length and fewer somatic kineties. Molecular data of T. apodiscolor n. sp. and T. bodiani were provided for the first time. Additionally, based on the Qingdao populations, we provide improved diagnoses for T. ditis and P. fasciolata. Phylogenetic analyses were performed and discussed, as there is strong support for paraphyly of the genera Tracheloraphis and Trachelocerca. In general, more integrative studies based on taxonomy, ultrastructure as well as molecular data are needed to properly shed light on the systematics of trachelocercids.