Description of five new and six known species of the genus Basirotyleptus Jairajpuri, 1964 (Nematoda: Dorylaimida: Tylencholaimoidea) from the Western Ghats, India
Author
Islam, Md Niraul
A202F47B-7E49-43AE-A2EF-988E7E891AA9
Nematode Biodiversity Research Lab, Department of Zoology, Aligarh Muslim University, Aligarh- 202002, India.
mnislam15@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
2022
2022-02-07
791
1
1
57
http://zoobank.org/2aedeba5-69c9-4630-b4be-c109b6b0d270
journal article
20745
10.5852/ejt.2022.791.1645
d21308fb-ff8b-4722-a9bd-6706515ab6d3
2118-9773
5999842
2AEDEBA5-69C9-4630-B4BE-C109B6B0D270
Table 10. Measurements of Basirotyleptus neocaudatus sp. nov. All measurements are in μm and in the form: mean ± s.d. (range).| Localities | | Type population | | Palakkad population | Idukki population |
|---|
| Characters | Holotype female | Paratypes females | Paratype male | females | males |
|---|
| n | | 5 | 1 | 14 | 16 |
|---|
| L | 417 | 397.6 ± 31.3 (343–441) | 418 | 349.3 ± 24.6 (312–402) | 367.8 ± 22.6 (343–434) |
|---|
| Body diameter at neck base | 18.0 | 16.9 ± 1.0 (15.5–18.5) | 17.5 | 16.6 ± 0.73 (15.5–17.5) | 15.8 ± 0.78 (15–18) |
|---|
| Body diameter at mid body | 19.5 | 18.2 ± 0.99 (16–20) | 19.5 | 18.1 ± 0.87 (16.5–19.5) | 17.3 ± 0.94 (15.5–18.5) |
|---|
| Body diameter at anus | 12.5 | 11.9 ± 0.73 (10.5–12.5) | 16.5 | 11.1 ± 0.70 (10–13) | 10.6 ± 0.90 (10–13) |
|---|
| a | 20.8 | 21.3 ± 1.4 (19.4–23.9) | 21.3 | 19.2 ± 0.81 (17.7–21.0) | 21.2 ± 1.3 (18.9–23.3) |
|---|
| b | 4.0 | 3.8 ± 0.15 (3.8–4.1) | 3.9 | 3.9 ± 0.33 (3.4–4.6) | 3.9 ± 0.41 (3.5–5.2) |
|---|
| c | 24.5 | 23.1 ± 1.7 (20.5–25.5) | 23.7 | 25.2 ± 2.4 (21.6–30.8) | 23.0 ± 2.7 (18.0–26.5) |
|---|
| c’ | 1.3 | 1.4 ± 0.07 (1.3–1.5) | 1.0 | 1.2 ± 0.10 (1.1–1.5) | 1.5 ± 0.15 (1.2–1.7) |
|---|
| V | 43.7 | 43.2 ± 0.63 (42.8–44.5) | – | 44.8 ± 1.6 (42.7–48.3) | 44.6 ± 1.7 (41.4–48.0) |
|---|
| G1 | 0.93 | 1.1 ± 0.03 (1.1–1.2) | – | 1.1 ± 0.20 (0.8–1.5) | 1.0 ± 0.19 (0.74–1.4) |
|---|
| G2 | 19.9 | 19.6 ± 3.4 (16.0–25.2) | – | 20.6 ± 2.1 (16.9–24.6) | 20.0 ± 1.3 (18.8–23.4) |
|---|
| Lip region diameter | 7.0 | 6.7 ± 0.2 (6.5–7.0) | 7.0 | 6.8 ± 0.12 (6.5–7.0) | 6.8 ± 0.12 (6.5–7.0) |
|---|
| Lip region height | 3.5 | 3.0 ± 0.2 (3.0–3.5) | 3.5 | 3.2 ± 0.20 (3.0–3.5) | 3.2 ± 0.23 (3.0–3.5) |
|---|
| Amphidial aperture | 3.5 | 3.4 ± 0.19 (3.0–3.5) | 3.5 | 3.6 ± 0.30 (3.0–4.0) | 3.7 ± 0.23 (3.5–4.0) |
|---|
| Odontostyle length | 8.0 | 8.4 ± 0.48 (8.0–9.0) | 9.5 | 8.4 ± 0.55 (7.5–9.5) | 8.0 ± 0.34 (7.5–9.0) |
|---|
| Odontophore length | 11 | 11.2 ± 0.75 (10–12) | 11.5 | 11.2 ± 0.58 (10–13) | 11.3 ± 0.82 (10.0–12.5) |
|---|
| Total stylet length | 19 | 19.6 ± 1.0 (18–20.5) | 21 | 19.7 ± 1.1 (19–22) | 19.2 ± 1.0 (18–21) |
|---|
| Guiding ring from anterior end | 8.5 | 8.1 ± 0.39 (8.0–9.0) | 8.5 | 8.6 ± 0.30 (8.0–9.0) | 8.1 ± 0.49 (7.0–9.0) |
|---|
| Nerve ring from anterior end | 56 | 53.5 ± 4.6 (47–57) | 60 | 49.6 ± 2.6 (44–54) | 53.5 ± 3.7 (45–59) |
|---|
| Neck length | 101 | 98.4 ± 6.2 (90–105) | 105 | 88.3 ± 5.2 (78–97) | 94.5 ± 6.8 (84–103) |
|---|
| Expanded part of pharynx | 15 | 16.4 ± 1.8 (15–20) | 15.5 | 16.7 ± 1.1 (14.0–18.5) | 15.6 ± 0.83 (15–17) |
|---|
| Cardia length | 4.0 | 3.9 ± 0.61 (3.0–5.0) | 4.0 | 4.2 ± 0.58 (3.0–5.0) | 3.8 ± 0.44 (3.0–5.0) |
|---|
| Anterior genital branch | 4.0 | 4.6 ± 0.42 (4.0–5.0) | – | 4.1 ± 0.66 (3.0–5.0) | 4.0 ± 0.70 (3.0–5.0) |
|---|
| Posterior genital branch | 83 | 78.8 ± 9.3 (65–88) | – | 73.5 ± 9.9 (61–98) | 75.3 ± 6.7 (68–96) |
|---|
| Vaginal length | 10.5 | 10.3 ± 0.99 (9.0–12) | – | 10.1 ± 0.40 (10–11) | 9.8 ± 0.35 (9.0–11) |
|---|
| Vulva from anterior end | 182 | 175.4 ± 12.0 (152–189) | – | 157.1 ± 9.5 (135–176) | 164.2 ± 10.0 (146–188) |
|---|
| Prerectum length | 41 | 39.3 ± 3.7 (32–43) | 61 | 31.9 ± 5.0 (27–43) | 33.6 ± 5.3 (27–46) |
|---|
| Rectum length | 12 | 13.3 ± 0.99 (11.5–14.5) | 23.5 | 14.9 ± 1.8 (12.5–20.5) | 14.6 ± 1.3 (10–17) |
|---|
| Tail length | 16.5 | 16.8 ± 0.73 (15–18) | 17.5 | 13.9 ± 1.1 (12–15) | 16.1 ± 1.8 (13–20) |
|---|
| Spicules length | – | – | 20.5 | – | – |
|---|
| Lateral guiding pieces | – | – | 5.5 | – | – |
|---|
| Ventromedian supplements | – | – | 2 | – | – |
|---|