Figure 1:
![Epidorylaimus procerus sp. n. (female). A: Entire. B, C: Anterior region in lateral median view. D: Lip region in lateral surface view. E: Pharyngo-intestinal junction. F: Vagina. G: Neck region. H: Anterior genital branch. I: Posterior body region [scale bars: A = 500 µm; B, C = 10 µm; D, F = 5 µm; E = 20 µm; G-I = 50 µm].](https://sciendo-parsed.s3.eu-central-1.amazonaws.com/6472210c215d2f6c89dbcd6a/j_jofnem-2020-112_fig_001.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=ASIA6AP2G7AKPQJMQYXX%2F20260308%2Feu-central-1%2Fs3%2Faws4_request&X-Amz-Date=20260308T005310Z&X-Amz-Expires=3600&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEDsaDGV1LWNlbnRyYWwtMSJHMEUCID9evL87gjUPWegGMzR6H%2BscDkM4gtbwtOoQLmmj0%2BQkAiEAq78uiSZLYwpw6mAyAykkTkzWXGH95uQs8AZ2vCT2eEoqvQUIBBACGgw5NjMxMzQyODk5NDAiDBgBFsC45YcjRyS2CSqaBU1WTfK19TZsYnDYG%2FVxbZ43kTKrjD1VXlR04xKf61717hN84cbWw4ExPUahNpW8%2BaHmMDzwfiZobIwkvlPFlcyqRdSWTNX8tex5uy8iGgJyONnvKtbkAcwJ318%2BrlfA9Moc3Yvhouxy%2BNmE%2FZU1oZ%2BTLM8vr6sXgN0i3m3sdxO4nTg2%2B6XH9KXaT10w5Y1bRk4lEHSvQSUFI5X%2BOCD%2FqYYejdcYXe4SqzBxz4nkeihMvffE26%2FjO58JxDMfls0fK6Ne0JjYsV30B5RC7Fv6%2F4y4rACBYj2q5Jb7iTTgPlwtzwwoORtI8lKpk3xsewzF%2BRQic%2BVRJd1Q4ik3HHsNilCxM459EqLim9FT%2BRuv092gL2dwr513NLiT0yOmBCaq7989uGsmA32fDKrjVHiFsPLkAbKIEJZzj9QZBb9zyXbtto2r9H2ntoJZTUF6fbjikkED%2FTqW6u0XODvQnUyHulqDslPGUQDw74fM0K%2Bo4Dx4Xt0IK%2BlYr%2BlVitWUK0F2gMLY1p1vXqMWAIwq1wcy2MS3oPyYLnDCBH81BN48hMpGMXZ1D1u9f0D4Ixb1DBOSsuMZy%2B9plSNsPGM8oV8gXiQQi4M9iJAsoemQ8h4lwVPjZKoBF%2BC33D6w%2B9teDI9WvnOU6N9wpo2zg67wcw8Ltb9NKfACCrck5NIMcteajJxtJAsAFgLFXaahFtMTs2lUAMHiUstcW%2BCTOcp%2BI2XfbpYlE18RUzv6xEdX008b5zs8900agfm0eoMPHEb0Wx75yZGLZ4%2FAvi5t7GLrYNVJtV5CtwRrVLA8WBV0kW8s3O8l%2F01lNCOhfV9zRULtvVnJDvvRVtR13%2Fr606jpaBmAkQ9cEl%2FnOJUKEcWPF0KAyV7ABBSKKWMghGsq%2BDDA5bHNBjqxAQt0PBTXoT1HRyeRGMpmMlPVPN6u1o2IHHWQqMpKR6W75%2Fa6i%2BMdgtGCUcyLNyj0qeCWTiMlQxYTEkKRcjPxyQRdc3kVlRW1IvCNZh64e9w4GqodLFg7MPnTDTfO%2FvMLOqR%2Bac8%2FFXoeT3SHSPmAx0T7IWFbui%2F55a4orSRx6LTn5yEMl6EnsZTo8TF66sbMrN9sVaz9dSchoJbLA%2B06p%2FMQ8OTnlbKi27FX7GeaQqgP1g%3D%3D&X-Amz-Signature=8ae9bfceaf2ed35e01dd77340c8004da7891884106ccb119d6b55ed37f06478b&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject)
Figure 2:
![Epidorylaimus procerus sp. n. (female, LM). A: Entire. B-D: Anterior region in lateral median view. E: Neck region. F: Pharyngo-intestinal junction. G: Lip region in lateral surface view. H: Anterior genital branch. I: Uterine egg. J: Vagina. K: Caudal region. L: Anterior portion of the caudal region in median view. M: Same in submedian view, showing the blister-like elements mainly subventrally and ventrally [scale bars: A = 500 µm; B-D = 10 µm; E, H, K = 50; F, I, L, M = 20 µm; G, J = 5 µm].](https://sciendo-parsed.s3.eu-central-1.amazonaws.com/6472210c215d2f6c89dbcd6a/j_jofnem-2020-112_fig_002.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=ASIA6AP2G7AKPQJMQYXX%2F20260308%2Feu-central-1%2Fs3%2Faws4_request&X-Amz-Date=20260308T005310Z&X-Amz-Expires=3600&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEDsaDGV1LWNlbnRyYWwtMSJHMEUCID9evL87gjUPWegGMzR6H%2BscDkM4gtbwtOoQLmmj0%2BQkAiEAq78uiSZLYwpw6mAyAykkTkzWXGH95uQs8AZ2vCT2eEoqvQUIBBACGgw5NjMxMzQyODk5NDAiDBgBFsC45YcjRyS2CSqaBU1WTfK19TZsYnDYG%2FVxbZ43kTKrjD1VXlR04xKf61717hN84cbWw4ExPUahNpW8%2BaHmMDzwfiZobIwkvlPFlcyqRdSWTNX8tex5uy8iGgJyONnvKtbkAcwJ318%2BrlfA9Moc3Yvhouxy%2BNmE%2FZU1oZ%2BTLM8vr6sXgN0i3m3sdxO4nTg2%2B6XH9KXaT10w5Y1bRk4lEHSvQSUFI5X%2BOCD%2FqYYejdcYXe4SqzBxz4nkeihMvffE26%2FjO58JxDMfls0fK6Ne0JjYsV30B5RC7Fv6%2F4y4rACBYj2q5Jb7iTTgPlwtzwwoORtI8lKpk3xsewzF%2BRQic%2BVRJd1Q4ik3HHsNilCxM459EqLim9FT%2BRuv092gL2dwr513NLiT0yOmBCaq7989uGsmA32fDKrjVHiFsPLkAbKIEJZzj9QZBb9zyXbtto2r9H2ntoJZTUF6fbjikkED%2FTqW6u0XODvQnUyHulqDslPGUQDw74fM0K%2Bo4Dx4Xt0IK%2BlYr%2BlVitWUK0F2gMLY1p1vXqMWAIwq1wcy2MS3oPyYLnDCBH81BN48hMpGMXZ1D1u9f0D4Ixb1DBOSsuMZy%2B9plSNsPGM8oV8gXiQQi4M9iJAsoemQ8h4lwVPjZKoBF%2BC33D6w%2B9teDI9WvnOU6N9wpo2zg67wcw8Ltb9NKfACCrck5NIMcteajJxtJAsAFgLFXaahFtMTs2lUAMHiUstcW%2BCTOcp%2BI2XfbpYlE18RUzv6xEdX008b5zs8900agfm0eoMPHEb0Wx75yZGLZ4%2FAvi5t7GLrYNVJtV5CtwRrVLA8WBV0kW8s3O8l%2F01lNCOhfV9zRULtvVnJDvvRVtR13%2Fr606jpaBmAkQ9cEl%2FnOJUKEcWPF0KAyV7ABBSKKWMghGsq%2BDDA5bHNBjqxAQt0PBTXoT1HRyeRGMpmMlPVPN6u1o2IHHWQqMpKR6W75%2Fa6i%2BMdgtGCUcyLNyj0qeCWTiMlQxYTEkKRcjPxyQRdc3kVlRW1IvCNZh64e9w4GqodLFg7MPnTDTfO%2FvMLOqR%2Bac8%2FFXoeT3SHSPmAx0T7IWFbui%2F55a4orSRx6LTn5yEMl6EnsZTo8TF66sbMrN9sVaz9dSchoJbLA%2B06p%2FMQ8OTnlbKi27FX7GeaQqgP1g%3D%3D&X-Amz-Signature=28fe13551641087800d6665491154509d124606629a92aea2024b67bf2360e2f&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject)
Figure 3:
Morphometrics of Epidorylaimus procerus sp_ n_ from Vietnam_
| Holotype | Paratypes | |
|---|---|---|
| ♀ | 15♀♀ | |
| Character | ||
| L | 2.37 | 2.28 ± 0.09 (2.16-2.46) |
| a | 30.8 | 31.4 ± 1.2 (28.8-32.9) |
| b | 5.5 | 5.2 ± 0.2 (4.9-5.6) |
| c | 13.0 | 13.3 ± 0.7 (12.1-14.4) |
| V | 41.5 | 41.2 ± 0.8 (39.8-42.6) |
| c′ | 5.4 | 4.9 ± 0.4 (4.4-5.5) |
| Lip-region diameter | 17 | 15.9 ± 0.6 (15-17) |
| Odontostyle length | 32 | 33.4 ± 1.2 (32-35) |
| Odontophore length | 32 | 30.2 ± 1.5 (28-33) |
| Neck length | 432 | 435 ± 18 (415-461) |
| Pharyngeal expansion length | 204 | 212 ± 13 (194-238) |
| Body diam. at neck base | 61 | 65.0 ± 4.0 (61-73) |
| Mid-body | 77 | 72.6 ± 3.4 (68-79) |
| Anus/cloaca | 36 | 35.2 ± 1.3 (32-36) |
| Distance vulva – anterior end | 982 | 938 ± 43 (885-1012) |
| Prerectum length | 91 | 91.8 ± 18.4 (70-123) |
| Rectum length | 42 | 42.5 ± 4.6 (35-49) |
| Tail length | 182 | 171 ± 9.2 (157-186) |