Absolutely none of it sounds like anything he knows. What's a rat? Rabbit? Insect!? Serph's expression flattens, perplexed. But not because of the unfamiliar terms, but because he doesn't see why V would ask him if his description of the world is familiar. To Serph it seems obvious that all would be different to him since...

Well, he's supposed to be dead.

Serph shakes his head. How to explain...

"My world lacked plants and animals... and was destroyed." That's really the most concise answer. "I entered the world that created it. A world with a black sun, its rays turning humans to stone."

Which is to say, no, none of that sounds anything like anything he knows.