Nguyen Thi Anh Duong, Peña-Santiago Reyes
Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam. Graduate University of Science and Technology, Vietnam Academy of Sciences and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam. Departamento de Biología Animal, Biología Vegetal y Ecología, Universidad de Jaén, Campus 'Las Lagunillas' s/n, Edificio B3, 23071-Jaén, Spain.
Departamento de Biología Animal, Biología Vegetal y Ecología, Universidad de Jaén, Campus 'Las Lagunillas' s/n, Edificio B3, 23071-Jaén, Spain..
Zootaxa. 2021 May 13;4970(1):189194. doi: 10.11646/zootaxa.4970.1.11.
Crassolabium unicum sp. n., collected from a natural habitat in Vietnam, is described and illustrated. The new species is characterized by its 0.770.94 mm long body, three-layered cuticle, lip region offset by depression and 1213.5 µm broad, odontostyle 13.515 µm long with wide aperture occupying 3646% of its length, neck 235260 µm long, pharyngeal expansion 117131 µm long or occupying 4752% of total neck length, anterior part of intestine presenting very distinct folds, female genital system didelphic-amphidelphic, uterus simple and 2843 µm or 0.70.9 body diameters, vulva transverse (V = 4552), prerectum bearing a blind postrectal sac, caudal region short and rounded (2125 µm, c = 4561, c' = 0.60.8) with two (dorsal and ventral) lacunae between outer and intermediate cuticle layers, and male unknown. It is compared with the similar representatives of the genus.
描述并图示了采自越南自然栖息地的单叶厚唇线虫新种。新种的特征在于其体长0.77 - 0.94毫米，角质层为三层，唇区因凹陷而偏移且宽121 - 13.5微米，齿针长13.5 - 15微米，开口宽，占其长度的36 - 46%，颈部长235 - 260微米，咽扩张区长117 - 131微米或占颈部总长度的47 - 52%，肠道前部有非常明显的褶皱，雌性生殖系统为双雌型 - 双端型，子宫简单，长28 - 43微米或为0.7 - 0.9个身体直径，阴门横向（V = 45 - 52），直肠前有一个盲肠后囊，尾区短且呈圆形（21 - 25微米，c = 45 - 61，c' = 0.6 - 0.8），在外角质层和中间角质层之间有两个（背侧和腹侧）腔隙，雄性未知。并将其与该属的相似代表物种进行了比较。
