Brewer's: Animals in Christian Art
- The ant symbolises prudence
- the ape, malice, lust, and cunning
- the ass, sobriety, or the Jewish nation
- the asp, Christ, or Christian faith
- the bee, industry
- the camel, submission
- the cock, vigilance
- the dog, fidelity
- the fox, fraud and cunning
- the hog, impurity
- the lamb, innocence;
- the leopard, sin
- the ox, pride
- the wolf, cruelty.
Some animals are appropriated to certain saints: as
- the calf or ox to Luke
- the cock to Peter
- the eagle to John the Divine
- the lion to Mark
- the raven to Benedict, etc.
The lamb, the pelican, and the unicorn, are symbols of Christ.
The dragon, serpent, and swine, symbolise Satan and his crew.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894