The Female Blanket Octopus Is 70 Times Larger Than the Male (nautil.us)

And this is the less interesting biological fact of the blanket octopuses. One of the really few animals enought smart to 1- make a decoy and 2- borrow and carry a 'fire' weapon with she for self-defense and hunting (a weapon not made by the octopus).

On the other hand, the name of the spider is Nephila, nor Nepila, a small typo.

It's not the size of the tentacle that matters...

I know a bar where a similar phenomena can be observed.