Common cuttlefish — mantle — mantle length

What is being measured?

Comparison uses the midpoint of the published 30–49 cm range. The description reports mantle lengths of 30 cm in subtropical areas to 49 cm in temperate areas. This is a midpoint across published regional values, not an overall mean. This is a range midpoint, not a measured population mean.

The comparison uses the midpoint of the stated range. That midpoint is a chosen reference, not a measured population mean.

Dimension

mantle length

Reference value

39.5 cm

Evidence

Chosen midpoint of a documented range

In metres

0.395 m

Variant

Mantle only; geographic range

Source range

30–49 cm

What the range means

The description reports mantle lengths of 30 cm in subtropical areas to 49 cm in temperate areas. This is a midpoint across published regional values, not an overall mean.

Put the length in perspective

One Common cuttlefish — mantle represents approximately 4.61 card lengths measured end to end. This is a length ratio; it does not calculate how the objects pack or fit.