Ovid
The Metamorphoses of Ovid, Book VI (Fable. 4)
The Satyr Marsyas, having challenged Apollo to a trial of skill on the flute, the God overcomes him, and then flays him alive for his presumption. The tears that are shed on the occasion of his death produce the river that bears his name.

When thus one, who, it is uncertain, had related the destruction of these men of the Lycian race, another remembers that of the Satyr;48 whom, overcome in playing on the Tritonian reed, the son of Latona visited with punishment. “Why,” said he, “art thou tearing me from myself? Alas! I now repent; alas,” cried he, “the flute is not of so much value!” As he shrieked aloud, his skin was stript49 off from the surface of his limbs, nor was he aught but one entire wound. Blood is flowing on every side; the nerves, exposed, appear, and the quivering veins throb without any skin. You might have numbered his palpitating bowels, and the transparent lungs within his breast. The inhabitants of the country, the Fauns, Deities of the woods, and his brothers the Satyrs, and Olympus,50 even then renowned, and the Nymphs lamented him; and whoever besides on those mountains was feeding the wool-bearing flocks, and the horned herds.

The fruitful earth was moistened, and being moistened received the falling tears, and drank them up in her lowest veins, which, when she had turned into a stream, she sent forth into the vacant air. And then, as the clearest river in Phrygia, running towards the rapid sea within steep banks, it bears the name of Marsyas.

From narratives such as these the people return at once to the present events, and mourn Amphion extinct together with all his race. The mother is an object of hatred. Yet her brother Pelops is said alone to have mourned for her as well; and after he had drawn his clothes from his shoulder towards his breast, he discovered the ivory on his left shoulder. This shoulder, at the time of his birth, was of the same color with the right one, and was formed of flesh. They say that the Gods afterwards joined his limbs cut asunder by the hands of his father; and the rest of them being found, that part which is midway between the throat and the top of the arm, was wanting. Ivory was inserted there, in the place of the part that did not appear; and so by that means Pelops was made entire.

Footnotes:

48. The Satyr.]—Ver. 382. Herodotus tells this story of the Satyr Marsyas, under the name of Silenus. Fulgentius informs us, that in paintings, Marsyas was represented with the tail of a pig.

49. His skin was stript.]—Ver. 387. Apollo fastened him to a pine-tree, or, according to Pliny the Elder, a plane-tree, which was to be seen even in his day. The skin was afterwards suspended by Apollo in the city of Celenæ. Hyginus says, that Apollo hewed Marsyas to pieces. The description here of the flaying is, perhaps, very natural; but it is all the more disgusting for being so. A commentator justly says, that it might suit a Roman, whose eyes were familiar with bloodshed, much better than the taste of the reader of modern times.

50. Olympus.]—Ver. 393. He was a Satyr, the brother and pupil of Marsyas. Pausanias describes a picture, painted by Polygnotus, in which Olympus was represented as sitting by Marsyas, clad as a youth, and learning to play on the flute. Euripides, in the Iphigenia in Aulis (l. 576) says that Olympus discovered some new measures for the ‘tibia,’ or flute. From Hyginus we learn, that Apollo delivered to him the body of Marsyas for burial.