Table 1. Morphometrics of Onyx disparamphis sp. n. type specimens.
| Character | Holotype male | Males (holotype and paratypes together) | Female paratypes | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| n | min–max | mean | SD | CV | n | min–max | mean | SD | CV | ||
| Body length, µm | 840 | 18 | 7503–1014 | 873 | 60.5 | 6.94 | 13 | 695–889 | 800 | 55.1 | 6.89 |
| a | 33.1 | 17 | 28.8–40.5 | 34.0 | 3.26 | 9.58 | 13 | 20.0–27.8 | 22.5 | 2.15 | 9.54 |
| b | 5.46 | 17 | 4.66–6.26 | 5.55 | 0.37 | 6.67 | 13 | 4.59–5.40 | 4.98 | 0.26 | 5.22 |
| c | 13.8 | 17 | 9.35–13.8 | 11.2 | 1.26 | 11.3 | 12 | 9.71–14.2 | 11.4 | 1.16 | 10.2 |
| c’ | 3.54 | 13 | 2.48–4.34 | 3.47 | 0.54 | 15.6 | 12 | 2.48–4.11 | 3.36 | 0.39 | 11.6 |
| V, % | – | – | – | – | – | – | 12 | 46.4–53.5 | 50.6 | 2.24 | 4.43 |
| Body diameter at the level of the subcephalic setae, µm | 24 | 12 | 20.0—25.9 | 23.9 | 1.83 | 7.66 | 10 | 22.0–34.0 | 27.7 | 3.67 | 13.3 |
| Body diameter at the level of the nerve ring, µm | 26 | 18 | 23.4–28.9 | 26.0 | 1.31 | 5.04 | 13 | 27.6–31.4 | 29.4 | 1.17 | 3.98 |
| Body diameter at the level of the cardia, µm | 26 | 18 | 24.1–30.0 | 26.1 | 1.37 | 5.24 | 13 | 29.0–37.0 | 32.5 | 2.38 | 7.33 |
| Body diameter at the level of the midbody, µm | 25 | 17 | 23.9–28.0 | 25.7 | 1.05 | 4.09 | 13 | 32.0–40.0 | 35.6 | 1.85 | 5.19 |
| Body diameter at the level of the cloaca/anus, µm | 23 | 13 | 21.0–25.6 | 23.3 | 1.33 | 5.72 | 13 | 19.0–25.0 | 21.4 | 1.59 | 7.45 |
| Cephalic setae length, µm | 12 | 16 | 9.30–14.2 | 11.4 | 1.22 | 10.7 | 11 | 6.50–13.0 | 10.2 | 1.98 | 19.3 |
| Subcephalic setae length, µm | 13 | 12 | 8.40–13.4 | 11.8 | 1.37 | 11.6 | 6 | 9.60-12.5 | 10.5 | 1.10 | 10.5 |
| Amphid width anteriorly, µm | 6 | 5 | 5.30–7.50 | 6.54 | 0.88 | 13.5 | 5 | 6.80–8.00 | 7.34 | 0.61 | 8.31 |
| Amphid furrow length, µm | 73 | 13 | 340–100 | 73.0 | 16.6 | 22.8 | – | – | – | – | – |
| Stoma total length, µm | 53 | 16 | 42.0–66.0 | 49.8 | 6.52 | 13.1 | 12 | 43.6–62.0 | 53.0 | 5.51 | 10.4 |
| Dorsal tooth length ventrally, µm | 9 | 14 | 26.8–39.6 | 34.4 | 3.48 | 10.1 | 11 | 33.0–40.3 | 29.4 | 12.2 | 41.7 |
| Dorsal tooth length dorsally, µm | 40 | 14 | 6.80–9.80 | 8.30 | 0.97 | 11.7 | 12 | 5.00–19.9 | 9.67 | 3.96 | 41.0 |
| Terminal bulb length, µm | 41 | 17 | 38.6–50.0 | 44.5 | 3.19 | 7.17 | 13 | 49.2–62.0 | 55.4 | 4.15 | 7.50 |
| Terminal bulb width, µm | 18 | 18 | 15.5–19.9 | 17.1 | 1.12 | 6.53 | 13 | 17.8–27.0 | 22.9 | 2.42 | 10.6 |
| Number of precloacal supplements | 18 | 13 | 14–19 | 16.9 | 1.52 | 9.02 | – | – | – | – | – |
| Spicules, length along the arc, µm | 35 | 16 | 33.2–40.0 | 36.3 | 1.91 | 5.26 | – | – | – | – | – |
| Spicules, length along the chord, µm | 26 | 16 | 23.4–30.4 | 26.7 | 1.99 | 7.45 | – | – | – | – | – |
| Gubernaculum length, µm | 16 | 16 | 12.3–19.5 | 15.5 | 1.97 | 12.7 | – | – | – | – | – |
Notes.
n, number of individuals; min–max, range, SD, standard deviation; CV, coefficient of variation (SD divided by mean, in %%)