ホルストガエルalso: ホルストがえるMeanings1nounHolst's frogusually written using kana aloneA specific frog species (Rana holsti) endemic to Japan; primarily a biological term.ホルストガエルは沖おき縄なわ県けんの固こ有ゆう種しゅです。Holst's frog is an endemic species of Okinawa Prefecture.