みかどちょうざめじゃなかったです
帝蝶鮫じゃなかったです
mikadochōzamejanakattadesu

Noun
Desu Copula

The polite, past negative form of みかどちょうざめ

1. Wasn't an imperial butterfly shark.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana