"The fish of Manu seems to have been unicorned, this is not specifically stated: but always its horn is mentioned, never its horns.
The fish is an incarnation of Vishnu
and Manu means “man.”
In many respects he corresponds to the Greek Anthropos:
he is the father of humanity and is descended directly from God, here called Svayambhu,
the “Self-So,” i.e., Brahma.
He is a God-man, identified with Prajapati, Lord of created things, and even with
Brahman itself, the highest soul."