College of Life Sciences, Liaocheng University, Liaocheng 252059, P. R. China..
Zootaxa. 2021 Jul 12;4999(3):273-278. doi: 10.11646/zootaxa.4999.3.6.
A new species of Setostephanolaimus Tchesunov, 1994, S. longiseta sp. nov. was discovered in an intertidal sand beach along the Rizhao coast of the Yellow Sea. It is characterized by its long and slender body, long cephalic setae (longer than 20 m and 16 m in males and females, respectively) and subcephalic setae, long spicules (longer than 90 m), gubernaculum with dorsal hooked apophyses, along with presence of 1012 tubular precloacal supplements in males. Updated dichotomous key for species of the genus Setostephanolaimus is also given.
一个新的物种，Setostephanolaimus Tchesunov，1994，即 S. longiseta sp. nov.，是在黄海日照海岸的潮间带沙滩中发现的。它的特征是身体细长，头部刚毛较长（雄性和雌性分别长于 20 微米和 16 微米）和亚头刚毛，长的棘刺（长于 90 微米），具背钩状附器的尾器，以及雄性的 1012 个管状肛前附器。还给出了 Setostephanolaimus 属物种的更新二叉分种检索表。
