くろさいだいとかげだったら
黒細大蜥蜴だったら
kurosaidaitokagedattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of くろほそおおとかげ

1. If/when [it] were a black, slender, large lizard.

Tara Conditional
Usually Written in Kana