This son of Maia delivered Pandora to mankind, directed Perseus to the Graeae, and, soon after birth, stole Apollo's cattle and invented the lyre.  
This mythological figure turned Battus into stone and was raised by Abacus, the king of Arcadia. His son with Aphrodite fused with the nymph Salmacis, causing him to have both male and female body parts, and his mother, one of the Pleiades, bore him in (*) Mount Cyllene. This son of Maia delivered Pandora to mankind, directed Perseus to the Graeae, and, soon after birth, stole Apollo's cattle and invented the lyre.  For ten points, name this father of Pan, the Greek messenger god.
This mythological figure turned Battus into stone and was raised by Abacus, the king of Arcadia.
{Hermes}