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Description of Deladenus hyrcanus sp. n. (Tylenchomorpha, Neotylenchidae) from Iran Cover

Description of Deladenus hyrcanus sp. n. (Tylenchomorpha, Neotylenchidae) from Iran

Open Access
|Sep 2025

Figures & Tables

Figure 1:

Mycetophagous female of Deladenus hyrcanus sp. n. A: Entire body; B, C: Anterior end; D: Pharyngeal region; E: Posterior body region and part of the reproductive system; F: Lateral lines; G, H: Posterior body region and tail.
Mycetophagous female of Deladenus hyrcanus sp. n. A: Entire body; B, C: Anterior end; D: Pharyngeal region; E: Posterior body region and part of the reproductive system; F: Lateral lines; G, H: Posterior body region and tail.

Figure 2:

Mycetophagous female of Deladenus hyrcanus sp. n. A, C: Anterior region (pharynx); B: Anterior region (stylet, secretory-excretory pore, median bulb and part of pharynx); D: Anterior region (stylet); E: Posterior part of reproductive system containing crustaformeria, uterus, vulva; F, G: Posterior part of the body; H, I: Lateral lines. Abbreviation: cr = crustaformeria; dgo = dorsal gland orifice; ep: secretory-excretory pore; hm = hemizonid; nr: nerve ring; pij = pharyngo-intestinal junction; pgn: pharyngeal gland cell nucleus; sp: spermatheca; vgo = ventral glands orifice; ut = uterus; vu = vulva. all scale bars = 10 μm.
Mycetophagous female of Deladenus hyrcanus sp. n. A, C: Anterior region (pharynx); B: Anterior region (stylet, secretory-excretory pore, median bulb and part of pharynx); D: Anterior region (stylet); E: Posterior part of reproductive system containing crustaformeria, uterus, vulva; F, G: Posterior part of the body; H, I: Lateral lines. Abbreviation: cr = crustaformeria; dgo = dorsal gland orifice; ep: secretory-excretory pore; hm = hemizonid; nr: nerve ring; pij = pharyngo-intestinal junction; pgn: pharyngeal gland cell nucleus; sp: spermatheca; vgo = ventral glands orifice; ut = uterus; vu = vulva. all scale bars = 10 μm.

Figure 3:

Bayesian 50% majority rule consensus tree of Deladenus hyrcanus sp. n. based on 28S rDNA D2-D3 segment sequences under GTR + I + G model. Bayesian posterior probability values more than 0.50 are given for appropriate clades. The new sequence is indicated in bold.
Bayesian 50% majority rule consensus tree of Deladenus hyrcanus sp. n. based on 28S rDNA D2-D3 segment sequences under GTR + I + G model. Bayesian posterior probability values more than 0.50 are given for appropriate clades. The new sequence is indicated in bold.

Morphometrics of Deladenus hyrcanus sp_ n_ All measurements in μm and in the form: mean ± S_D_ (range)_

CharacterFemale

HolotypeParatypes
n17
L759752 ± 31.5 (718–806)
a31.621.8 ± 2.6 (17.5–24.8)
b9.09.4 ± 0.8 (8.5–10.5)
b′3.84.2 ± 0.5 (3.8–5.1)
c12.211.8 ± 0.8 (10.2–12.6)
c′3.93.9 ± 0.3 (3.5–4.4)
V86.386.3 ± 0.6 (86–87)
Lip region height1.51.7 ± 0.2 (1.5–2.0)
Lip region width7.57.7 ± 0.4 (7–8)
Stylet length98.7 ± 0.8 (7.5–10.0)
Stylet conus33.2 ± 0.4 (2.5–3.5)
Excretory pore from anterior end112.5110 ± 3.8 (106–115)
Hemizonid from anterior end111108.5 ± 3.1 (106–113)
Pharynx8480.0 ± 4.9 (71–86)
Nerve ring from anterior end8377.7 ± 3.5 (73–83)
Pharynx overlapping11498.0 ± 14.1 (72–115)
Maximum body diam.2434.9 ± 4.9 (30–44)
Vulval body diam. (VBD)2324.9 ± 3.5 (21–31)
Vulva–body end104102.9 ± 3.5 (97–111)
Vulva to anus4238.8 ± 5.4 (28.5–46.0)
Anal body diam.1616.4 ± 1.2 (15.0–18.5)
Tail length6264.0 ± 4.3 (58–72)
DOI: https://doi.org/10.2478/jofnem-2025-0037 | Journal eISSN: 2640-396X | Journal ISSN: 0022-300X
Language: English
Submitted on: Mar 15, 2025
Published on: Sep 19, 2025
Published by: Society of Nematologists, Inc.
In partnership with: Paradigm Publishing Services
Publication frequency: 1 times per year

© 2025 Mohammad Esmaeil Agh Atabai, Farzad Aliramaji, Ebrahim Shokoohi, published by Society of Nematologists, Inc.
This work is licensed under the Creative Commons Attribution 4.0 License.