Perry's Index to the Aesopica
Fables exist in many versions; here is one version in English:
THE FOX, THE DONKEY AND THE LION
The fox and the donkey were partners in a hunting expedition but when they encountered
a lion, the fox recognized the danger they were in. She went to the lion and
offered to betray the donkey if the lion would promise to spare her life in
return. The lion agreed to let the fox go, and the fox then led the donkey into
a trap and made him fall in. Once he saw that the donkey could not escape, the
lion immediately seized the fox, saving the donkey for later.
Likewise, it is often the case that if you plot against your associates,
you will be destroyed together with them.
Aesop's Fables. A new translation by Laura
Oxford University Press (World's Classics): Oxford, 2002.
cover, with new ISBN, published in 2008; contents of book unchanged.
Perry 191: Gibbs (Oxford) 145 [English]
Perry 191: L'Estrange 193 [English]
Perry 191: Townsend 26 [English]
Perry 191: Chambry 270 [Greek]
You can find a compilation of Perry's index to the Aesopica in the gigantic appendix to his
edition of Babrius and Phaedrus for the Loeb Classical Library
(Harvard University Press: Cambridge, 1965). This book is an absolute must for anyone interested
in the Aesopic fable tradition. Invaluable.