title: A new species of the genus Tripylina Brzeski, 1963 (Nematoda: Enoplida: Trischistomatidae) from Shanxi province, China.
abstract: Tripylina puxianensis n. sp. is described and illustrated from Shanxi province, China. It is characterized by having a triangular dorsal tooth, pointing towards the ventral side, anterior to two sub-ventral teeth, with dorsal and sub-ventral teeth similar in shape and size; one ventromedian seta in the cervical region; vulva with protruding lips, absence of post-uterine sac; and a pair of setae on the tail; male not found; female body length 1048-1331 µm, a = 25.5-33.8, b = 5.5-6.2, c = 14.4-23.1, c' = 2.1-3.5 and V = 56.1-68.5%. The phylogenetic relationships among species in the genus Tripylina were analyzed using data from the SSU (small subunit) and D2/D3 expansion segments of the LSU (large subunit) rDNA. These analyses confirmed that T. puxianensis n. sp. is different from other members of the genus for which sequences are available.
authors.affiliation: Laboratory of Nematology, Department of Plant Pathology, Agronomy College, Shanxi Agricultural University, TaiGu, 030801, China. ymxu0310@yahoo.com.cn
authors.forename: Yu Mei
authors.initials: YM
authors.lastname: Xu
authors.forename: Zeng Qi
authors.initials: ZQ
authors.lastname: Zhao
authors.forename: Jian Ming
authors.initials: JM
authors.lastname: Wang
authors.forename: Jing Wu
authors.initials: JW
authors.lastname: Zheng
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D049628:Body Size; D002681:China; D018509:DNA, Helminth / Q000235:genetics; D004275:DNA, Ribosomal / Q000235:genetics; D017158:Enoplida / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development; D005260:Female; D008297:Male; D009929:Organ Size; D010802:Phylogeny
chemical_list: D018509:DNA, Helminth; D004275:DNA, Ribosomal