Two new and two known species of the genus Eudorylaimus Andrássy, 1959 (Nematoda, Dorylaimoidea, Qudsianematidae) from Northeast China Author Liang, Siwei Tillage and Cultivation Research Institute, Liaoning Academy of Agricultural Sciences, Shenyang- 110161, China Author Islam, Md Niraul 0000-0001-8520-9775 Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang- 110016, China Author Du, Xiaofang Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang- 110016, China Author Li, Ying bin 0000-0002-0207-8667 Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang- 110016, China Author Liang, Wenju Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang- 110016, China Author Ahmad, Wasim 0000-0002-8545-4997 Nematode Biodiversity Research Lab, Department of Zoology, Aligarh Muslim University, Aligarh- 202002, India Author Zhang, Xiaoke Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang- 110016, China Author Mahamood, Mohammad Department of Plant Protection, College of Agriculture and Food, Qasim University, Buraydah, Saudi Arabia Author Alhewairini, Saleh 0000-0003-2770-7412 Department of Plant Protection, College of Agriculture and Food, Qasim University, Buraydah, Saudi Arabia Author Li, Qi 0000-0002-8652-8396 Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang- 110016, China text ZooKeys 2025 2025-05-09 1238 41 74 journal article 309743 10.3897/zookeys.1238.138550 ddc7f26b-20ab-4e6c-af55-9c939b287132 2EEDABD8-1C19-47E4-8163-931B1FFA93B8

Table 5. Morphometrics of Eudorylaimus saccatus sp. nov. All measurements are in μm and in the form: mean ± s. d. (range).

Characters	Holotype female	Paratype Females	Paratype Males
n		4	5
L	1334	1270.7 ± 110.4 (1140–1412)	1326.8 ± 91.5 (1151–1412)
Body diameter at neck base	53	49.7 ± 6.1 (42–58)	57.7 ± 6.6 (50.5–67)
Body diameter at mid body	60	55.6 ± 6.0 (48–63)	64.2 ± 8.9 (53–76)
Body diameter at anus	33.5	32.2 ± 2.8 (29–36)	33.0 ± 1.8 (30–35)
a	22.2	22.9 ± 0.056 (22–24)	20.9 ± 1.8 (18–24)
b	3.6	3.4 ± 0.13 (3.3–3.6)	3.8 ± 0.19 (3.4–3.9)
c	29	26.7 ± 2.2 (24–30)	33.5 ± 3.5 (29–39)
c’	1.3	1.4 ± 0.12 (1.3–1.6)	1.2 ± 0.12 (1.0–1.3)
V	61.9	62.5 ± 0.55 (61.9–63.3)	–
G 1	20.6	17.3 ± 1.3 (15–19)	–
G 2	17.3	15.6 ± 0.78 (14–17)	–
Lip region diameter	16	15.7 ± 0.43 (15–16)	16.2 ± 0.67 (15.5–17.5)
Lip region height	6.5	6.3 ± 0.21 (6.0–6.5)	6.3 ± 0.24 (6.0–6.5)
Amphidial aperture	8.5	8.2 ± 0.25 (8.0–8.5)	9.0 ± 0.63 (8.5–10)
Odontostyle length	17.5	18.1 ± 0.21 (18.0–18.5)	18.0 ± 0.31 (17.5–18.5)
Odontophore length	26	26.2 ± 0.90 (25.0–27.5)	25.8 ± 0.81 (24.5–27)
Total stylet length	43.5	44.3 ± 0.73 (43.5–45.5)	43.8 ± 1.0 (42–45)
Guiding ring from anterior end	9.0	9.3 ± 0.41 (9.0–10)	8.7 ± 0.50 (8.0–9.5)
Nerve ring from anterior end	136	136.2 ± 6.4 (130–145)	136.0 ± 6.5 (126–145)
Neck length	367	366.2 ± 17.8 (342–389)	344.8 ± 10.3 (332–362)
Expanded part of pharynx	176	172 ± 14.1 (157–189)	156 ± 6.2 (148–165)
Cardia length	28	30 ± 6.04 (23–36)	30.4 ± 5.0 (28–37)
Anterior genital branch	276	226.6 ± 32.7 (181–256)	–
Posterior genital branch	232	203.6 ± 27.7 (167–234)	–
Vaginal length	23	24.6 ± 1.6 (23–27)	–
Vulva from anterior end	826	795.2 ± 71.2 (717–898)	–
Prerectum length	82	75.7 ± 9.2 (61–84)	111.4 ± 20.2 (86–141)
Rectum length	39	33.5 ± 4.7 (28–40)	43.6 ± 3.9 (38–48)
Tail length	46	47.5 ± 0.86 (47–49)	39.8 ± 3.0 (35–44)
Spicules length	–	–	45.8 ± 1.3 (44–48)
Lateral guiding pieces	–	–	13.1 ± 0.91 (12–14)
Ventromedian supplements	–	–	9–11