The genus Tripylina Brzeski, 1963 is a group of terrestrial nematodes that inhabit soil and semi-wet biomes, most of which have been reported from Europe, Asia, America, Africa, and New Zealand. Tripylina stramenti (Yeates, 1971) Tsalolikhin, 1983, belonging to the family Trischistomatidae Andrássy, 2007, is newly discovered from Korea. The specimens were collected from the edge of the valley of Ulleung-gun, Gyeongsangbuk-do, South Korea. Tripylina stramenti described herein shows typical morphological characters of the genus Tripylina, including six and four setae in a single whorl, present dorsal tooth and subventral teeth, prodelphic reproductive system of female, absence post-uterine sac, narrow sickle-shaped spicule of male and generally S-shaped tail. The specimens differ in their body width (from the New Zealand populations), outer labial setae length, cuticles thickness (from the West African populations), and nerve ring position (from Indian populations). This species is distinguished from other Tripylina species by its relatively large body, two anterior and subventral teeth, and single cervical seta. In this study, morphological characteristics and morphometric information of the Korean T. stramenti isolate are described, illustrated, and compared with the same species from other geographic origins.
Andrássy, I. 2007. Free-living nematodes of Hungary (Nematoda errantia). Volume II. Hungarian Natural History Museum and Systematic Zoology Research Group of the Hungarian Academy of Sciences, Budapest.
Andrássy, I. 2008. Two new and a known species of the family Tripylidae (Nematoda: Enoplida) from the tropics. Opuscula Zoologica Budapest 37:3-9.
Asghari, R., E. Pourjam, R. Heydari, Z.Q. Zhao and F.A. Ramaji. 2012. Tripylina gorganensis n. sp. (Triplonchida: Tripylidae) from northern Iran. Nematology 14:613-621.
Baermann, G. 1917. Eine einfache Methode zur Auffindung von Ankylostomum (Nematoden) Larven in Erdproben. Geneeskundig Tijdschrift voor Nederlandsch-Indië 57:131-137.
Brzeski, M.W. and G. Winiszewska-Ślipińska. 1993. Taxonomy of Tripylidae (Nematoda: Enoplia). Nematologica 39:12-52.
Cid del Prado-Vera, I., H. Ferris and S.A. Nadler. 2016. Five new species of the family Trischistomatidae (Nematoda: Enoplida) from North and Central America, with keys to the species of Trischistoma and Tripylina. Zootaxa 4109: 173-197.
Seinhorst, J.W. 1959. A rapid method for the transfer of nematodes from fixative to anhydrous glycerin. Nematologica 4:67-69.
Shirayama, Y., T. Kaku and R.P. Higgins. 1993. Double-sided microscopic observation of meiofauna using an HS-slide. Benthos Research 44:41-44.
Tahseen, Q. and T. Nusrat. 2010. Some new and known species of genera Tripylina Brzeski and Trischistoma Cobb, 1913 (Nematoda) with a discussion on their relationships. Journal of Nematology 42:128-138.
Tsalolikhin, S.J. 1983. Nematode Families Tobrilidae and Tripylidae of the World Fauna. Nauka, Leningrad (in Russian).
Winiszewska, G., M.W. Brzeski, Y.E. Choi and J.I. Kim. 2000. Tripylidae (Nematoda: Enoplia) from Korea. Annales Zoologici 50:297-306.
Yeates, G.W. 1971. Trischistoma stramenti n. sp. (Nematoda: Enoplida) from leaf litter. New Zealand Journal of Science 14:897-900.
Zhao, Z.Q. 2009. A review of the genus Tripylina Brzeski, 1963 (Nematoda: Triplonchida), with descriptions of five new species from New Zealand. Zootaxa 2238:1-24.