Redescription of Laimydorus siddiqii Baqri & Jana, 1982 (Dorylaimida: Dorylaimidae) with its first molecular study
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24. Mai 2025
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Online veröffentlicht: 24. Mai 2025
Seitenbereich: 62 - 71
Eingereicht: 07. Juli 2024
Akzeptiert: 28. Feb. 2025
DOI: https://doi.org/10.2478/helm-2025-0006
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© 2025 A. Ansari et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Fig. 1.
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Fig. 3.
Fig. 4.
Morphometry of Laimydorus siddiqii Baqri and Jana, 1982 from Uttarakhand, India_ All the measurements are in μm (except n, ratio and percentage) and are in the form of mean ± standard deviation (range)_
| N | 10 | 6 |
| Total body length (L) | 2913 ± 162 (2601 – 3100) | 2710 ± 312 (2393 – 3108) |
| a (L/BD) | 38 ± 4.1 (31 – 42) | 35 ± 2.4 (33 – 39) |
| b (L/NL) | 5.1 ± 0.2 (4.8 – 5.2) | 4.6 ± 0.4 (4.2 – 5.2) |
| c (L/TL) | 12.1 ± 0.8 (11 – 14) | 110.14 ± 16.6 (94 – 141) |
| c' (T/ABD) | 7.9 ± 0.6 (6.5 – 8.9) | 0.8 ± 0.1 (0.7 – 1) |
| V % (AV/L) ×100 | 48 ± 1.9 (45 – 52) | – |
| Lip region width | 15.7 ± 1.2 (14 – 18) | 15.2 ± 0.4 (15 – 16) |
| Lip region height | 5.7 ± 0.4 (5.1 – 6) | 5.9 ± 05 (5 – 5.6) |
| Amphid aperture width | 8.2 ± 1.3 (7 – 10) | 6.6 ± 0.57 (6 – 7) |
| G1((AUL + AOVL+ AOL)/L×100) | 22.4 ± 1.5 (20.6 – 25.6) | – |
| G2 ((PUL+ POVL+ POL/L) × 100) | 21.4 ± 1.9 (19.3 – 23.6) | – |
| Cuticle at anterior region | 1.85 ± 0.2 (1.5 – 2) | 1.9 ± 0.2 (1.4 – 2) |
| Cuticle at mid region | 2 ± 0.35 (1.5 – 2.5) | 1.2 ± 0.2 (1 – 1.5) |
| Cuticle at tail region | 2.52 ± 0.4 (2 – 3) | 2.9 ± 0.2 (2.5 – 3) |
| Odontostyle length | 31.5 ± 0.8 (30 – 33) | 31.9 ± 0.6 (31 – 33) |
| Odontostyle length-dorsal side | 21.5 ± 2.0 (19 – 26) | 21.7 ± 1 (20 – 23) |
| Odontostyle length-ventral side | 30.7 ± 1.4 (29 – 34) | 30.6 ± 0.8 (30 – 32) |
| Odontostyle width | 3.6 ± 0.6 (3.1 – 5.2) | 3.7 ± 0.5 (3 – 4) |
| Odontostyle aperture length | 10.5 ± 0.9 (9 – 12) | 10.2 ± 1.1 (9 – 12) |
| Odontophore length | 35.8 ± 2.2 (33 – 40) | 36.4 ± 0.8 (35 – 37) |
| Distance guiding ring-anterior end | 19.3 ± 0.7 (18 – 20) | 18.2 ± 0.7 (17 – 19) |
| Distance nerve ring-anterior end | 170.6 ± 9.6 (155 – 185) | 182.3 ± 27.5 (155 – 210) |
| Neck length (NL) | 583 ± 31.7 (532 – 652) | 581.6 ± 12.9 (563 – 598) |
| Pharyngeal expansion length | 283 ± 21.2 (244 – 306) | 282 ± 14.8 (255 – 299) |
| Pharyngeal expansion width | 38 ± 2.8 (35 – 44) | 46.5 ± 3.1 (44 – 51) |
| Body diameter at neck base | 77 ± 8.2 (65.2 – 86) | 67.6 ± 2.6 (63 – 70) |
| Cardia length | 24.9 ± 3.1 (19 – 30) | 24.1 ± 3.1 (21 – 30) |
| Cardia width | 19.4 ± 1.9 (18 – 24) | 16.3 ± 1.6 (14 – 18) |
| Body diameter at vulva | 78.1 ± 8.1 (65 – 86) | – |
| Anterior uterus length (AUL) | 272.3 ± 11.5 (250 – 290) | – |
| Anterior oviduct length (AOVL) | 190.4 ± 0.5 (190 – 191) | – |
| Anterior ovary length (AOL | 187.8 ± 3.5 (183 – 192) | – |
| Posterior uterus length (PUL) | 261.6 ± 18 (225 – 292) | – |
| Posterior oviduct length (POVL) | 173.5 ± 7.7 (160 – 182) | – |
| Posterior ovary length (POL | 188.7 ± 5.3 (180 – 198) | – |
| Vagina length | 21.5 ± 1.9 (20 – 26) | – |
| Distance vulva-anterior end (AV) | 1407 ± 93.2 (1241 – 1558) | – |
| Prerectum length | 188 ± 16.9 (167 – 210) | 333 ± 61.9 (290 – 404) |
| Rectum length | 42.5 ± 5.2 (34 – 48) | 65.2 ± 10.10 (53 – 80) |
| Anal body diameter (ABD) | 30.4 ± 1.3 (28 – 32) | 31.5 ± 2.6 (28 – 35) |
| Tail length (TL) | 213 ± 27.8 (183 – 268) | 26.5 ± 1.3 (25 – 28) |
| Vulva to anus | 1272 ± 99.2 (1124 – 1410) | – |
| Body diameter (BD) | 78.1 ± 8.1 (65 – 86) | 72.1 ± 5.1 (63 – 78) |
| Spicule length | – | 59.5 ± 2.8 (56 – 63) |
| Max. width of spicule | – | 10.0 ± 0.8 (9.0 – 11.0) |
| Distance of hump from anterior end of spicule | – | 18.5 ± 0.7 (18 – 19) |
| Spicule width at posterior tip | – | 5.2 ± 0.6 (4.7 – 6) |
| Ventromedian supplements | – | 27.3 ± 0.8 (26 – 28) |
| Distance between supplements | – | 1.6 ± 0.2 (1.5 – 2.0) |