Table 2. Morphological indices of the VRS common octopus.
| Parameter | Males (n = 14) | Females (n = 4) | ||||
|---|---|---|---|---|---|---|
| Min | Mean | Max | Min | Mean | Max | |
| Head width index | 27.67 | 35.80 | 50.13 | 28.80 | 34.33 | 43.90 |
| Mantle width index | 45.85 | 58.14 | 74.24 | 55.43 | 63.49 | 80.21 |
| Ligula length index | 0.92 | 1.25 | 1.65 | – | – | – |
| Calamus length index | 40.79 | 49.18 | 58.56 | – | – | – |
| Normal sucker diameter index | 7.05 | 8.32 | 10.42 | 7.43 | 8.04 | 8.58 |
| Enlarged sucker diameter index | 8.87 | 10.64 | 13.75 | – | – | – |
| Mantle arm index | 26.60 | 31.10 | 35.02 | 24.34 | 28.78 | 31.75 |
| Arm length index | 77.53 | 82.73 | 87.22 | 83.30 | 84.91 | 85.64 |
| Opposite arm index | 77.06 | 85.65 | 90.75 | – | – | – |
| Arm width index | 12.82 | 16.40 | 23.15 | 13.44 | 15.06 | 17.94 |
| Hectocotylized arm index | 229.56 | 265.21 | 306.88 | – | – | – |
| Funnel length index | 26.79 | 31.48 | 37.00 | 31.91 | 39.16 | 49.47 |
| Pallial aperture index | 33.45 | 40.07 | 50.48 | 39.04 | 46.26 | 61.66 |
| Eye lens diameter index | 0.04 | 0.06 | 0.07 | 0.04 | 0.06 | 0.08 |
| Web depth index | 16.35 | 21.25 | 24.91 | 18.47 | 19.79 | 21.52 |
| Terminal organ length index | 7.51 | 11.28 | 13.29 | – | – | – |
| Spermatophore length index | 28.06 | 32.43 | 38.68 | – | – | – |