西 にし鼠鮫 ねずみざめではありませんでした
ni shi nezumizamedewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 西鼠鮫

1. Was not a western rat shark.; Was not a western mouse shark.

Past/Perfective
Negative
Polite
Formal Register