The hooks that they get are different from what is referred to as the "boxing gloves".They develop 'hooks' (sometimes referred to as boxing gloves)
To clarify further: the hooks are actually tibial hooks, located on the underside of the front two legs. The "boxing gloves" are bulbous pedipalps (I call them palpal bulbs, easier to say). I have heard that there exists a species or two of tarantula that does not develop the hooks upon maturity, but only has the palpal bulbs. I don't know which species exactly, though...The hooks that they get are different from what is referred to as the "boxing gloves".
There is a list somewhere, but Poecilotheria is one of them, and I know T. blondi, but not sure about the Theraphosa genus in general...I have heard that there exists a species or two of tarantula that does not develop the hooks upon maturity, but only has the palpal bulbs. I don't know which species exactly, though...