Ischyroplectron is a monotypic genus of wÃÂtÃÂ containing the species Ischyroplectron isolatum. I isolatum or the Bounty Island wÃÂtÃÂ, is a cave wÃÂtÃÂ in the family Rhaphidophoridae, endemic to Bounty Island of New Zealand. It is found under rocks.