Table 1 Data on maturing and mature male individuals of Muusoctopus aegir Golikov, Gudmundsson & Sabirov, sp. nov. Immature individuals detailed in SM.01 Table S1

Area

ICL

BS

BS

BS

BS

BS

BS

BS

KS

KS

KS

Maturity stage

Early

maturing

(III)

Mature

(V₂)

Mature

(V₂)

Mature

(V₂)

Mature

(V₂)

Pre-mature

(V₁)

Late

maturing

(IV)

Early

maturing

(III)

Mature

(V₂)

Mature

(V₂)

Pre-mature

(V₁)

ML, mm

27

50

36

46

28

29

24

22

30

46

32

TL, mm

126

n/a

n/a

n/a

134

152

118

102

167

235

139

Ventral ML, mm

26

49

n/a

n/a

21

26

21

18

28

40

28

Mantle width, mm

28

n/a

n/a

n/a

34

32

29

24

40

41

33

Head length, mm

13

n/a

n/a

n/a

12

14

10.5

9

15.5

18

12

Head width, mm

22

n/a

n/a

n/a

25

24

21

18

23

32

26

Eye diameter, mm

11.0

n/a

n/a

n/a

10.0

9.0

7.5

7.5

12.0

16.0

9.0

Lens diameter, mm

2.5

n/a

n/a

n/a

2.8

3.5

2.2

2.0

4.1

4.3

3.2

Funnel length, mm

11.0

n/a

n/a

n/a

10.0

13.5

12.0

9.0

17.0

18.0

14.0

Free funnel

length, mm

6.0

n/a

n/a

n/a

5.3

7.5

6.6

4.5

9.0

10.1

7.4

Web depth, mm

(min – max)

n/a

n/a

n/a

n/a

17–28

20–26

19–26

14–20

33–36

32–44

24–29

Web formula

n/a

n/a

n/a

n/a

c > b = d > a > e

b > a > c > d > e

b > c > a > d > e

a = c > b = d > e

a = c > b > d > e

c > b = d > a > e

a > b > d > c > e

Arm length, mm

(min – max)

82–86

147^b

115–117

168–170

89–94

86–104

76–83

67–71

101–111

162–171

86–95

Arm formula

2 = 3 > 1 > 4

n/a

1 > 2 = 3 > 4

1 = 2 > 3 = 4

2 > 1 = 3 > 4

2 > 1 > 3 > 4

1 = 2 > 3 > 4

1 = 2 > 3 > 4

2 > 3 > 1 = 4

1 > 2 > 3 > 4

1 > 2 > 3 > 4

Sucker count

(min – max)

94–102

n/a

108–120

n/a

84–90

90–98

84–88

90–98

92–100

100–110

96–100

Sucker diameter

(max), mm

3.0

n/a

n/a

n/a

2.5

2.5

2.5

1.7

3.5

3.0

3.3

Gill length, mm

9.0

n/a

n/a

n/a

8.5

9.0

9.0

9.0

10.5

18.0

9.5

Gill lamellae count,

outer/inner

8/7

n/a

n/a

n/a

8/7

8/8

8/7

8/7

9/8

8/7

8/7

Hectocotylized arm

length, mm

62

113

64

130

63

67

61

50

73

113

71

Hectocotylized arm

sucker count

56

n/a

54

n/a

46

54

52

50

54

54

48

Ligula length, mm

5.5

11.0

9.0

11.0

7.0

6.0

5.8

4.0

9.0

12.0

8.0

Ligula width, mm

3.0

n/a

5.0

6.6

4.4

3.8

3.6

1.8

4.8

6.0

3.8

Calamus length, mm

2.2

n/a

3.8

3.9

2.9

1.8

2.1

1.1

3.2

5.2

2.9

Number of spermatophores

Normal

spermatophores

absent^d

11

13

22

7^c

5

Normal

spermatophores

absent

Spermatophores

absent

20

17

5

Spermatophore length, mm

(min – max)

39.0^e

36.0–39.1

41.0–45.4

28.1–38.0

35.3–39.4

30.3–40.5

41.00–48.0

27.9–34.9