Table 6 Morphometrics of Halomonhystera socialis from the White Sea (detached kelp accumulation)

L

10

1,875–3,590

2,691

500

18.6

16

2,499–3,841

3,085

382

12.4

a

10

42.5–59.8

51

5.9

11.5

16

34.2–51.4

44.1

5.14

11.7

b

10

6.7–10.6

8.8

1.34

15.3

16

8.5–13.3

10.4

1.57

15.2

c

10

12.3–21

16.4

2.93

17.8

16

12.2–17.8

14.7

1.57

10.7

c′

10

3.2–5

4.17

0.68

16.4

16

3.4–9.3

7.27

1.56

21.5

V %

–

–

–

–

–

16

81.3–93.8

88.7

2.97

3.35

Distance from vulva to anus

–

–

–

–

–

17

37–48

44.9

2.82

6.27

Distance from vulva to anus divided by tail length

–

–

–

–

–

15

0.17–0.25

0.21

0.03

13.4

Distance from vulva to anus divided by anal body diameter

–

–

–

–

–

17

1.20–1.84

1.61

0.20

12.7

Body diameter at level of cephalic setae

10

11–16

13.5

1.72

12.7

17

11–15

13.5

1.23

9.14

Body diameter at level of amphideal foveas

10

15–23

19.1

2.28

12

17

18–24

20.4

1.58

7.76

Body diameter at level of nerve ring

10

28–45

31.6

8.82

16

17

28–42

34.5

3.97

11.5

Body diameter at level of cardia

10

32–51

39.9

5.45

13.6

17

37–50

42.6

3.86

9.06

Midbody diameter

10

39–63

52.8

8.72

16.5

17

60–80

69.2

6.05

8.75

Anal body diameter

10

33–45

39.7

4.35

10.9

17

25–38

28.3

3.51

12.4

Distance from cephalic apex to anterior rim of amphideal fovea

10

14–23

17.2

2.82

16.4

17

13–23

17.2

2.74

16.0

Distance from cephalic apex to anterior rim of amphideal fovea divided by body diameter at level of cephalic setae

17

1.13–1.44

1.27

0.1

7.58

17

0.93–1.57

1.27

0.16

12.2

Spicule’s length along chord

10

45.9–80

54.4

11.24

20.7

–

–

–

–

–

Spicule’s length along arch

10

45.9–96

71.5

15.3

21.4

–

–

–

–

–

Length of apophysis of gubernaculum

9

3–6

4.89

1.05

21.6

–

–

–

–

–