As I was holding raised on them my brows,
  Behold! a serpent with six feet darts forth
  In front of one, and fastens wholly on him.

With middle feet it bound him round the paunch,
  And with the forward ones his arms it seized;
  Then thrust its teeth through one cheek and the other;

The hindermost it stretched upon his thighs,
  And put its tail through in between the two,
  And up behind along the reins outspread it.