This deity's son with Aphrodite
 was so beloved by the nymph Salmacis that the gods made them one being, male and female.
One of this deity's exploits was witnessed by Battus, a shepherd this deity turned into stone. Statues of
 this deity often showed a head on top of a uniform stone pillar, where genitalia were attached at an
 appropriate position; Alcibiades was accused of desecrating those statues. This deity's son with Aphrodite
 was so beloved by the nymph Salmacis that the gods made them one being, male and female. Offspring of
 this deity include a satyr conceived with the nymph Dryope named Pan. This deity once stole the cattle of
 Apollo. For 10 points, name the messenger of the Greek gods.
One of this deity's exploits was witnessed by Battus, a shepherd this deity turned into stone.
{Hermes} [or {Mercury}]