From: A review of the genus Muusoctopus (Cephalopoda: Octopoda) from Arctic waters
Individuals/ character | GRL-PA-7- 20–1-2016 | GRL-PA-7- 20–2-2016 | GRL-PA-7- 117–2016 | USNM 574859a |
---|---|---|---|---|
Area | GRL | GRL | GRL | CAN |
Sex | Male | Male | Female | Female |
Maturity stage | Late immature (II) | Early immature (I) | Early immature (I) | Late immature (II) (?) |
ML, mm | 30 | 23 | 22 | 31 |
TL, mm | 148 | 118 | 99 | n/a |
Ventral ML, mm | 26 | 19 | 17 | n/a |
Mantle width, mm | 32 | 20 | 23 | 34 |
Head length, mm | 13 | 9 | 8 | n/a |
Head width, mm | 26 | 19 | 17 | n/a |
Eye diameter, mm | 8.5 | 7.0 | 6.0 | n/a |
Lens diameter, mm | 3.0 | 2.0 | 2.0 | n/a |
Funnel length, mm | 13.0 | 9.0 | 9.0 | 14.0 |
Free funnel length, mm | 7.0 | 5.5 | 6.0 | 11.0 |
Web depth, mm (min – max) | 20–27 | 12–16 | 13–17 | 13–21 |
Web formula | a > c > b > d > e | b > c > d > a > e | b > c = d > e > a | c = d > b > a > e |
Arm length, mm (min – max) | 79–105 | 69–86 | 54–69 | 80–85 |
Arm formula | 1 > 2 = 4 > 3 | 1 > 2 > 3 > 4 | 1 > 2 > 3 > 4 | 3 > 1 = 2 = 4 |
Sucker count (min – max) | 102–118 | 88–108 | 84–100 | 81 |
Sucker diameter (max), mm | 3.0 | 2.0 | 2.0 | 3.0 |
Gill length, mm | 13.5 | 9.6 | 8.6 | n/a |
Gill lamellae count, outer/inner | 10/9 | 10/9 | 9/9 | 8/8 |
Hectocotylized arm length, mm | 74 | 59 | – | – |
Hectocotylized arm sucker count | 66 | 56 | – | – |
Ligula length, mm | 4.8 | 2.7 | – | – |
Ligula width, mm | 3.0 | 1.5 | – | – |
Calamus length, mm | 1.8 | 1.8 | – | – |