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Table 11 Morphometrics of the type specimens Leptolaimus hydrothermalis sp. n

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

Character Males Paratype females
Holotype Paratype male 1 2 3 4 5
L 610 561 627 629 755 573 641
a 30.5 31.2 27.3 26.8 31.5 27.3 31.3
b 4.66 4.56 4.66 4.54 4.86 4.97 4.76
c 6.29 8.11 6.37 6.20 6.92 5.74 6.31
V % 51.5 51.8 55.2 49.6 50.2
c′ 5.00 5.15 7.17 7.07 6.56 7.38 7.39
Body diameter at level of cephalic setae 4.0 4.0 4.0 4.5 5.0 3.5 4.5
Body diameter at level of amphideal fovea 8.0 7.5 7.5 8.0 8.0 6.0 6.5
Body diameter at level of nerve ring 16.5 14.5 17.0 14.0 17.0 15.0 14.5
Body diameter at level of cardia 18.0 15.5 19.0 19.0 19.0 16.0 17.0
Midbody diameter 20.0 18.0 23.0 23.5 24.0 21.0 20.5
Anal body diameter 17.0 17.0 14.5 14.0 15.0 12.5 12.5
Length of cephalic setae 3.0 3.0 2.5 2.5 3.0 2.5 2.5
Width of amphideal fovea 3.5 3.0 2.5 2.5 2.5 2.5 2.5
Width of amphideal fovea as percentage of c.b.d., % 44 40 33 31 31 42 38
Distance from cephalic apex to anterior rim of amphideal fovea 12.5 13.0 14.0 16.0 16.5 15.0 13.5
Stoma length 22.0 21.0 22.5 22.0 26.0 22.0 20.0
Length of posteriormost precloacal supplementary tube 14.0 14.0
Distance from I (anteriormost) to II supplementary tube 44.0 44.0
Distance from II to III supplementary tube 31.0 28.0
Distance from III to IV (posteriormost) supplementary tube 23.0 24.0
Spicule’s length along arch 29.1 27.2
Length of apophysis of the gubernaculum 3.5 5.0
  1. Measures in µm except for ratios