The first pair of legs is just longer than the body.
The fourth pair of legs is longer than the body.
This makes it look like they only have two pairs of legs.
It has three pairs of tiny legs near its head.
Then my light caught a pair of legs on the floor.
A man emerged and another pair of legs appeared behind him.
The other pair of legs came over to the front steps and sat down.
"Probably never seen a week's meals all walking around on one pair of legs before."
A pair of legs hung down from the one she held.
He had never before in his life seen a pair of legs like those.