Pedipalp
Pedipalps are the two appendages on the front of a spider's head. Other arachnids, and chelicerates that are not arachnids also have pedipalps. Some spiders seem to have ten legs and not eight, because these pedipalps look like an extra pair of legs. The pedipalps are used rather like arms.  Spiders often use them to hold insects (for example crickets) for them to eat.