Perro is a genus of dwarf spiders that was first described by A. V. Tanasevitch in 1992.
Species it contains five species, found in Russia and Canada: Perro camtschadalica (Kulczyński, 1885) – Russia Perro polaris (Eskov, 1986) – Russia, Canada Perro putoranica (Eskov, 1986) – Russia Perro subtilipes (Tanasevitch, 1985) (type) – Russia Perro tshuktshorum (Eskov & Marusik, 1991) – Russia
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