Table 7 Measurements [in µm] and pt values of selected morphological structures of individuals of Paramacrobiotus fairbanksi Schill, Förster, Dandekar & Wolf 2010 Mongolian population mounted in Hoyer’s medium (N—number of specimens/structures measured; RANGE refers to the smallest and the largest structure among all measured specimens; SD—standard deviation, pt—ratio of the length of a given structure to the length of the buccal tube expressed as a percentage).

Body length

14

553

–

864

–

717

104

Buccopharyngeal tube

 Buccal tube length

14

53.7

–

67.6

–

61.5

–

3.6

–

 Stylet support insertion point

13

40.7

–

51.2

73.4

–

78.8

46.9

76.9

2.8

1.4

 Buccal tube external width

14

12.3

–

18.1

20.1

–

26.8

13.7

22.2

1.6

1.9

 Buccal tube internal width

14

9.0

–

14.8

14.3

–

21.9

10.5

17.0

1.4

1.7

 Ventral lamina length

11

36.0

–

43.1

60.0

–

65.8

39.0

62.9

2.2

1.8

Placoid lengths

 Macroplacoid 1

14

10.4

–

13.1

16.2

–

21.8

11.4

18.6

0.9

1.5

 Macroplacoid 2

14

8.7

–

11.2

14.1

–

18.8

10.0

16.3

0.8

1.4

 Macroplacoid 3

14

11.0

–

15.0

17.5

–

25.0

12.7

20.8

1.1

1.8

 Microplacoid

14

4.6

–

7.1

6.8

–

10.9

5.6

9.1

0.7

1.0

 Macroplacoid row

14

33.2

–

41.4

56.6

–

64.9

37.0

60.2

2.0

2.5

 Placoid row

14

43.9

–

54.8

74.1

–

84.6

49.4

80.5

2.6

3.1

Claw 1 heights

 External primary branch

14

15.1

–

18.1

23.7

–

30.1

16.8

27.3

1.0

1.9

 External secondary branch

14

11.7

–

15.2

18.7

–

24.3

13.6

22.2

1.1

1.9

 Internal primary branch

14

14.8

–

18.2

23.6

–

29.9

16.5

27.0

1.1

2.2

 Internal secondary branch

14

11.6

–

15.1

18.7

–

24.4

13.1

21.3

1.0

1.9

Claw 2 heights

 External primary branch

14

16.2

–

21.0

26.2

–

35.1

18.0

29.4

1.3

2.5

 External secondary branch

14

12.6

–

16.9

19.7

–

28.2

14.6

23.8

1.3

2.2

 Internal primary branch

14

13.0

–

19.6

20.9

–

32.0

15.9

25.9

2.1

3.0

 Internal secondary branch

14

9.6

–

15.0

15.5

–

24.6

13.0

21.2

1.7

2.3

Claw 3 heights

 External primary branch

14

13.6

–

19.6

21.8

–

31.5

17.2

28.0

1.6

2.8

 External secondary branch

14

10.7

–

16.4

18.5

–

25.2

13.4

21.7

1.7

2.3

 Internal primary branch

14

13.6

–

18.0

21.8

–

30.8

16.5

26.8

1.4

2.2

 Internal secondary branch

14

11.1

–

16.4

17.9

–

25.1

13.4

21.8

1.6

2.3

Claw 4 heights

 Anterior primary branch

14

15.6

–

21.9

26.4

–

35.1

18.6

30.3

1.7

2.6

 Anterior secondary branch

14

10.7

–

17.1

16.7

–

26.4

14.3

23.3

1.7

2.8

 Posterior primary branch

14

14.5

–

22.8

23.6

–

34.5

18.5

30.1

2.0

2.9

Posterior secondary branch

14

11.0

–

17.5

18.5

–

28.5

14.2

23.1

2.2

3.3