Six new and four known species of the genus Axonchium Cobb, 1920 (Nematoda: Dorylaimida: Belondiroidea) from the Western Ghats of India
Author
Kumar, Sumit
4F7A3F90-19A6-43DD-B31F-82913B12EC74
Nematode Biodiversity Research Lab, Department of Zoology, Aligarh Muslim University, Aligarh- 202002, India.
sumitchandra.20@gmail.com
Author
Ahmad, Wasim
4A070AF3-8976-49F8-BBC1-497F1B3FB354
Nematode Biodiversity Research Lab, Department of Zoology, Aligarh Muslim University, Aligarh- 202002, India.
ahmadwasim57@gmail.com
text
European Journal of Taxonomy
2023
2023-02-08
857
1
56
http://dx.doi.org/10.5852/ejt.2023.857.2039
journal article
55119
10.5852/ejt.2023.857.2039
732325d8-01c5-4dc7-9b19-41ae3eca0398
2118-9773
7629268
81346690-911F-49A2-B820-CD6F07A9C4E9
Table 6. Measurements of Axonchium microspiculum sp. nov. All measurements in µm except L in mm, and in the form: mean ± s.d. (range).| Localities | Idukki population (type population) | Thiruvananthapuram population |
|---|
| Characters | Holotype female | Paratype females | Paratype males | Females | Male |
|---|
| n | 1 | 3 | 6 | 4 | 1 |
|---|
| L | 1.1 | 1.13 ± 0.1 (1.1–1.16) | 1.2 ± 0.1 (1.14–1.3) | 1.16 ± 0.1 (1.1–1.22) | 1.16 |
|---|
| a | 39.5 | 40.1 ± 1.1 (38.6–41.4) | 46.7 ± 1.9 (42.4–48.2) | 42.7 ± 2.0 (40–45.3) | 48.3 |
|---|
| b | 2.6 | 2.6 ± 0.1 (2.5–2.7) | 3.0 ± 0.2 (2.6–3.2) | 2.7 ± 0.1 (2.6–2.8) | 3.2 |
|---|
| c | 55.4 | 61.6 ± 2.1 (59.4–64.3) | 63.8 ± 3.5 (57.3–67.9) | 65.7 ± 4.9 (59.7–71.9) | 57.9 |
|---|
| cʹ | 0.9 | 0.9 ± 0.1 (0.8–0.95) | 0.9 ± 0.1 (0.8–1) | 0.9 ± 0.1 (0.8–0.9) | 1.0 |
|---|
| V | 54.7 | 54.2 ± 0.3 (54–55) | – | 54.4 ± 1.6 (53–56) | – |
|---|
| G1 | 5.9 | 5.4 ± 0.3 (5.0–5.7) | – | 4.5 ± 0.4 (4.0–5.1) | – |
|---|
| G2 | 13 | 10.7 ± 0.8 (10–11.9) | – | 9.9 ± 0.5 (9.2–10.4) | – |
|---|
| Body diam. at pharynx base | 28 | 28.3 ± 0.5 (28–29) | 27.7 ± 0.5 (27–28) | 26.5 ± 0.9 (25–27) | 25 |
|---|
| Body diam. at mid-body | 28 | 28.7 ± 0.9 (28–30) | 26.14 ± 1.0 (24–27) | 27.2 ± 0.4 (27–28) | 24 |
|---|
| Body diam. at anus/ cloaca | 21 | 21 ± 0.8 (20–22) | 21 ± 0.8 (20–22) | 20 ± 0.7 (19–21) | 21 |
|---|
| Lip region diam. | 7 | 6.8 ± 0.2 (6–7) | 7.2 ± 0.2 (7–8) | 7 | 8 |
|---|
| Lip region height | 4 | 3.7 ± 0.5 (3–4) | 4 | 4 | 4 |
|---|
| Amphid aperture | 5 | 5.3 ± 0.5 (5–6) | 5.5 ± 0.4 (5–6) | 5.25 ± 0.4 (5–6) | 5 |
|---|
| Odontostyle length | 8 | 7.6 ± 0.5 (7–8) | 8 | 7.5 ± 0.5 (7–8) | 7 |
|---|
| Odontophore length | 9 | 9.3 ± 0.5 (9–10) | 9.1 ± 0.4 (9–10) | 9.5 ± 0.5 (9–10) | 10 |
|---|
| Guiding ring from ant. end | 7 | 7 | 6.9 ± 0.5 (6–8) | 7.2 ± 0.4 (7–8) | 7 |
|---|
| Nerve ring from ant. end | 100 | 103.5 ± 1.5 (102–105) | 106.8 ± 3.1 (103–112) | 100 ± 10.6 (85–108) | 114 |
|---|
| Neck length | 433 | 443 ± 13.9 (429–462) | 407 ± 14.7 (388–432) | 429 ± 19.2 (402–456) | 367 |
|---|
| Expanded part of pha- rynx | 272 | 274 ± 16.3 (261–297) | 230.7 ± 19.3 (210–263) | 253.7 ± 14.2 (240–277) | 184 |
|---|
| Cardia length | 10 | 9.0 ± 2.2 (7–12) | 9.2 ± 0.7 (8–10) | 7.2 ± 1.6 (5–9) | 8 |
|---|
| Anterior genital branch | 65 | 61.7 ± 2.6 (58–64) | – | 53 ± 6.0 (47–62) | – |
|---|
| Posterior genital branch | 145 | 123.3 ± 7.7 (116–134) | – | 114.7 ± 7.3 (108–127) | – |
|---|
| Vaginal depth | 17 | 17.7 ± 17.7 (17–19) | – | 16.5 ± 1.5 (15–18) | – |
|---|
| Vulva from ant. end | 606 | 622.3 ± 4.6 (616–627) | – | 633.7 ± 24.6 (605–662) | – |
|---|
| Prerectum length | 142 | 134.7 ± 5.4 (127–139) | 176.8 ± 25 (142–215) | 129.2 ± 8.8 (120–139) | 105 |
|---|
| Rectum length | 21 | 22.7 ± 0.5 (22–23) | 31 ± 1.4 (28–32) | 23.5 ± 2.3 (20–26) | 26 |
|---|
| Tail length | 20 | 18.7 ± 0.5 (18–19) | 19.3 ± 0.7 (18–20) | 20 ± 0.7 (19–21) | 20 |
|---|
| Spicule length | – | – | 21.5 ± 1.0 (20–23) | – | 22 |
|---|
| Lateral guiding pieces | – | – | 6.0 ± 0.8 (5–7) | – | 7 |
|---|
| Ventromedian supple- ments | – | – | 2 | – | 2 |
|---|