あなしゃこじゃなかったです
穴蝦蛄じゃなかったです
anashakojanakattadesu

Noun
Desu Copula

The polite, past negative form of あなじゃこ

1. Wasn't a mantis shrimp.; Wasn't a hole shrimp.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana