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Table 9 Morphometrics of Desmodora marci, Lucky Strike

From: Free-living nematode species (Nematoda) dwelling in hydrothermal sites of the North Mid-Atlantic Ridge

Character Males Females
n Min–max Mean SD CV n Min–max Mean SD CV
L 16 1825–2525 2135 158 7.42 13 1855–2360 2070 146 7.06
a 16 30.3–41.5 35.7 3.27 9.16 13 21.6–45.3 30.3 6.30 20.8
b 16 9.05–11.6 10.7 0.68 6.37 13 8.54–12.1 10.3 0.91 8.84
c 16 9.8–13.5 11.6 1.01 8.68 13 9.89–12.5 11.0 0.87 7.88
c 14 4.90–6.78 5.80 0.60 10.3 13 5.81–7.50 6.63 0.57 8.60
V  % 13 46.6–57.4 53.6 2.59 4.83
Body diameter at level of cephalic setae 15 20.0–28.0 23.3 2.18 9.36 13 20.9–24.0 22.4 1.04 4.64
Body diameter at level of nerve ring 11 36.0–50.0 41.9 3.76 8.97 11 38.0–54.0 45.5 4.73 10.4
Body diameter at level of cardia 14 34.3–50.4 46.4 2.42 5.21 13 40.0–52.7 46.6 3.19 6.85
Midbody diameter 16 44.0–71.2 60.5 7.68 12.8 13 41.0–91.0 71.0 14.7 20.7
Anal body diameter 14 28.0–36.0 31.7 2.51 7.91 13 25.0–36.0 29.7 3.09 10.4
Cephalic capsule length 14 16.0–21.0 18.1 1.40 7.74 13 15.0–21.0 17.2 1.83 10.6
Length of cephalic setae 16 5.0–7.1 6.4 0.76 11.9 13 4.3–7.0 5.84 0.84 14.4
Width of amphideal fovea 13 7.0–9.6 8.2 0.86 10.5 12 7.00–9.00 7.98 0.75 9.40
Width of amphideal fovea as percentage of c.b.d., % 12 25.9–34.6 29.8 3.26 10.9 11 25.0–34.6 29.7 3.17 16.7
Distance from cephalic apex to anterior rim of amphideal fovea 11 6.0–10.0 8.11 1.31 16.2 12 5.0–12.3 8.64 2.45 28.4
Length of terminal pharyngeal bulb 15 38.0–54.1 47.3 4.01 8.48 13 43.8–56.0 49.1 3.76 7.66
Width of terminal pharyngeal bulb 15 34.0–45.0 38.4 2.77 7.21 13 34.8–38.2 36.6 1.25 3.42
Length of cardia 15 10.0–19.7 13.6 3.00 22.1 13 9.2–22.0 14.8 3.62 24.5
Spicule’s length along arch 14 58.5–72.0 65.0 4.14 6.37
Gubernaculum’s length 15 17.0–25.0 21.4 2.51 11.7 9 21.1–24.2 22.4 0.99 4.42
  1. Measures in µm except for ratios