ぎゃくまきがいじゃないです
逆巻貝じゃないです
gyakumakigaijanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of さかまきがい

1. It's not a horn shell.; It's not a turban shell.

Negative
Polite
Casual Register
Usually Written in Kana