The Probert Encyclopaedia of Nature

PEDIPALP

Pedipalp are each of the second pair of appendages attached to the cephalothorax of most arachnids. Pedipalp are variously specialized as pincers, such as in scorpions, sensory organs, as is the case with spiders, or locomotory organs, as is the case with horseshoe crabs.
Research Pedipalp