FIGURE 6. Parahystrignathus tongbiguanensis gen. n. et sp. n. Female. SEM images. A: Cephalic end of body; B: Enlarged spines; C: Cephalic end, subapical view; D, E: Cephalic end, en face view, showing cephalic papillae (cp) and amphids (am); F: Vulval region, lateral view, showing the vulva and terminal part of spines; G: A part of body anterior to vulva, showing the posterior part of spines; H: A part of body at excretory pore region, showing the excretory pore and spines near the excretory pore; I: Enlarged image of excretory pore; J: Posterior end of body, showing the anus and tail.

Published as part of Zhang, Ningning, Yin, Shi, Carreno, Ramon A. & Zhang, Luping, 2021, Three new genera and new species of hystrignathid nematodes (Nematoda: Thelastomatoidea) from passalid beetles (Insecta: Passalidae) from Yunnan Province, China with phylogenetic analysis of Hystrignathidae, pp. 206-222 in Zootaxa 5071 (2) on page 217, DOI: 10.11646/zootaxa.5071.2.2, http://zenodo.org/record/5723542