にっぽんザリガニでわありませんでした
日本ザリガニではありませんでした
nipponzariganidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of にほんざりがに

1. Was not a Japanese crayfish.; Was not a Japanese killifish.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana