イセリア介殻 かいかく むしじゃなかったです
ise riakaikakumushijanakattadesu

Noun
Desu Copula

The polite, past negative form of イセリア介殻虫

1. Wasn't a limpet.; Wasn't a serpulid.

Past/Perfective
Negative
Polite
Casual Register