Figure 1:
Figure 2:
Figure 3:
Figure 4:
Figure 5:
Figure 6:
Figure 7:
Morphometric data for Geocenamus chengi n_ sp_ All measurements are in µm and in the form of mean ± SD (range)_
| Holotype | Paratype | ||
|---|---|---|---|
| Female | Male | ||
| n | 20 | 10 | |
| Body length | 884.8 | 879.0 ± 59.6 (783–997) | 822.8 ± 34.2 (772–892) |
| a | 33.3 | 33.3 ± 2.6 (28–39) | 32.9 ± 1.2 (31–34) |
| b | 6.0 | 6.1 ± 0.3 (5.5–6.6) | 6.1 ± 0.2 (5.8–6.6) |
| c | 10.4 | 10.5 ± 0.6 (9.2–11.7) | 9.7 ± 0.6 (8.7–10.3) |
| c' | 4.7 | 4.6 ± 0.4 (4.2–5.5) | 4.8 ± 0.3 (4.5–5.2) |
| V | 52.8 | 52.5 ± 1.6 (49.5–55.7) | 39.4 ± 5.4 (33.1–47.4) |
| Lip height | 7.5 | 7.6 ± 2.4 (7.0–8.0) | 7.6 ± 0.3 (7.0–8.0) |
| Lip width | 3.7 | 3.8 ± 0.3 (3.4–4.5) | 3.7 ± 0.3 (3.2–4.0) |
| Stylet length | 22.3 | 22.2 ± 0.6 (21–23) | 21.5 ± 0.7 (20–23) |
| DGO distance from stylet knobs | 2.0 | 2.0 ± 0.1 (1.7–2.2) | 2.1 ± 0.1 (1.9–2.3) |
| Excretory pore from anterior end | 122.8 | 120.6 ± 5.2 (109–126) | 108.3 ± 5.2 (101–116) |
| Hemizonid from anterior end | 118.4 | 116.7 ± 5.1 (104–123) | 103.0 ± 6.7 (94–113) |
| Pharynx length | 148.4 | 145 ± 5.7 (130–152) | 134 ± 3.6 (127–139) |
| Maximum body diam. | 26.6 | 26.6 ± 2.5 (22–33) | 25.0 ± 1.0 (23–27) |
| Vulval body diam. | 25.4 | 26.6 ± 2.3 (23–32) | − |
| Anal/cloacal body diam. | 18.3 | 18.1 ± 1.2 (16–21) | 17.7 ± 0.9 (16–19) |
| Tail length | 85.2 | 83.8 ± 5.4 (76–92) | 85.2 ± 5.4 (78–93) |
| Hyaline tail part length | 25.2 | 22.4 ± 2.2 (19–25) | 21.3 ± 1.9 (18–24) |
| Phasmid position from anus/cloaca | 12.4 | 15.5 ± 4.1 (10–19) | 24.6 ± 3.9 (19–29) |
| Phasmid % of tail | 14.6 | 17.4 ± 4.0 (12–20) | 29.5 ± 4.0 (24–35) |
| Spicule length | − | 23.4 ± 1.9 (22–25) | |
| Gubernaculum | − | 8.0 ± 0.7 (7–9) | |