Pholus

Pholus is a figure from Greek mythology. He is a Centaur and the son of Silenus and one of the Meliae, remarkable for his civilized nature in contrast to most other Centaurs.

Description:
Pholus was often described as having a similar unique form to that of Chiron, where the entire front half of his body was human and only the back half was that of a horse.

This difference can be attributed to lineage, as all other centaurs were born of Ixion and Nephele.

Centaur Slaughter:
One night, the hero Heracles was at Pholus' home. While there, Heracles attempted to drink the sacred wine of the centaurs. Pholus could not find the courage to stop his friend, and thus a large battle ensued as the Centaurs were enraged at Heracles. During said battle, Chiron was accidentally struck by one of Heracles' poison arrows, leading to his death.

In some versions of the story, Pholus himself also falls victim to one of Heracles' arrows by accident.