びふとしおうとかげであれば
鼻太大蜥蜴であれば
bi futoshi ōtokagedeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of はなぶとおおとかげ

1. If/when the large-nosed lizard…; If the large-nosed lizard were…

Ba Conditional
Usually Written in Kana