Perro (spider)Perro is a genus of dwarf spiders that was first described by A. V. Tanasevitch in 1992.Speciesit contains five species, found in Russia and Canada:Perro camtschadalica – RussiaPerro polaris – Russia, CanadaPerro putoranica – RussiaPerro subtilipes – RussiaPerro tshuktshorum – Russia