Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Morphometrics of Delatylus andersoni n_ gen_, n_ sp_ All measurements are in μm and in the form: mean ± s_d (range)_
| Measurements | ||||
|---|---|---|---|---|
| Holotype | Populations | |||
| Characters | 9095 (paratype) | 480 | 484 | |
| n | 1 | 19 | 20 | 20 |
| L | 760 | 756.1 ± 113.7 (526.8–943.9) | 613.8 ± 96.3 (439.5–829.6) | 760.0 ± 73.8 (636.6–907.2) |
| a | 27.1 | 28.8 ± 2.4 (24.9–33.5) | 23.7 ± 2.7 (18.3–27.9) | 22.0 ± 2.7 (17.8–27.1) |
| b | 10.8 | 11.1 ± 1.7 (7.5–13.7) | 9.6 ± 1.6 (7.0–13.8) | 11.6 ± 1.4 (9.3–13.8) |
| b' | 5.6 | 5.9 ± 0.8 (4.1–7.1) | 5.8 ± 0.9 (4.3–8.3) | 6.6 ± 0.6 (5.4–7.4) |
| c | 13.8 | 14.3 ± 2.1 (10.3–17.9) | 13.7 ± 1.2 (11.3–15.5) | 15.0 ± 1.7 (11.8–18.9) |
| c' | 3.2 | 3.4 ± 0.2 (2.9–3.8) | 3.2 ± 0.2 (2.8–3.8) | 3.1 ± 0.4 (2.6–4.1) |
| V | 89 | 89.9 ± 1.5 (85.6–91.8) | 88.8 ± 0.8 (87.3–90.3) | 89.5 ± 1.1 (87.3–91.8) |
| Stylet length | 9.0 | 8.8 ± 0.3 (8.5–10.5) | 8.8 ± 0.6 (7.8–9.7) | 9.2 ± 0.7 (7.3–10.1) |
| Max. body diam. | 28 | 26.4 ± 4.6 (18.4–33.9) | 26.4 ± 6.2 (20.1–40.5) | 35.1 ± 6.3 (23.5–49.8) |
| Gonad length | 595 | 526.0 ± 10 (317.7–677.9) | 461.1 ± 91.5 (261.6–685.5) | 603.1 ± 74.7 (494.5–753.8) |
| Lip height | 2 | 2.1 ± 0.2 (1.8–2.6) | 2.2 ± 0.2 (1.9–2.8) | 2.3 ± 0.3 (2.0–2.9) |
| Lip width | 8 | 8.3 ± 0.5 (7.1–9.1) | 7.4 ± 0.6 (6.6–8.7) | 8.0 ± 0.7 (6.4–8.9) |
| Anterior end to nerve ring | 65 | 61.1 ± 3.8 (55.1–70.8) | 55.9 ± 3.2 (50.8–64.7) | 58.6 ± 4.5 (50.2–66.2) |
| Anterior end to pharyngo-intestinal junction | 70 | 68.3 ± 3.3 (62.5–75.1) | 63.9 ± 3.8 (58.1–72.3) | 65.7 ± 4.5 (55.8–73.0) |
| Anterior end to the hemizonid | 110 | 104.0 ± 8.2 (91.3–122.5) | 95.7 ± 13.1 (79.8–128.6) | 107.0 ± 7.5 (90.7–119.9) |
| Distance from the nerve ring to the hemizonid | 50 | 43.0 ± 6.4 (31.6–57.2) | 36.8 ± 13.0 (23.4–69.0) | 48.4 ± 9.2 (29.1–61.3) |
| Anterior end to the excretory pore | 113 | 107.1 ± 7.6 (95.6–124.5) | 92.6 ± 13.0 (76.7–125.4) | 103.0 ± 7.4 (86.0–114.6) |
| Distance from the nerve ring to the excretory pore | 51 | 46.0 ± 5.6 (37.8–59.2) | 36.8 ± 13.0 (23.4–69.0) | 44.4 ± 9.2 (24.4–58.1) |
| Anterior end to the end of pharyngeal glands | 135 | 128.3 ± 7.7 (113.2–146.6) | 106.4 ± 10.2 (90.5–127.4) | 115.0 ± 5.3 (105.7–125.3) |
| Distance from vulva to anus | 26 | 22.3 ± 3.3 (16.0–28.3) | 23.3 ± 3.6 (18.8–31.3) | 27.8 ± 3.0 (21.5–33.3) |
| Anal body width (ABW) | 17 | 15.6 ± 2.0 (11.3–19.8) | 14.1 ± 1.6 (11.9–16.9) | 16.5 ± 2.0 (12.5–21.0) |
| Distance from vulva to tail terminus | 81 | 75.3 ± 5.4 (60.0–83.9) | 67.9 ± 7.2 (55.2–84.9) | 78.8 ± 5.2 (72.8–89.3) |
| Tail length | 55 | 53.1 ± 4.6 (39.3–58.9) | 44.7 ± 4.8 (35.5–53.6) | 51.0 ± 4.0 (45.8–59.6) |
| Ratio of vulva–anus/tail length | 0.47 | 0.5 ± 0.1 (0.4–0.6) | 0.5 ± 0.2 (0.4–0.7) | 0.5 ± 0.1 (0.4–0.5) |