Family: Linyphiidae Blackwall,1859 [urn:lsid:nmbe.ch:spiderfam:0103] Detail
Gen. Perro Tanasevitch, 1992 [urn:lsid:nmbe.ch:spidergen:01195] Detail
N.B.: replacement name for Pero Tanasevitch, 1985a: 55, type P. subtilipes Tanasevitch, 1985, preoccupied, provided by Tanasevitch, 1992, Arthr. Sel. 1: 49.
Perro camtschadalica (Kulczyński, 1885) | f | Russia     [urn:lsid:nmbe.ch:spidersp:012330]
Erigone camtschadalica Kulczyński, 1885: 41, pl. 11, f. 20 (Df).
Macrargus camtschadalicus Kulczyński, 1926: 32, 51.
Pero camtschadalica Eskov, 1986b: 1741, pl. 3, f. 1-3 (Tf from Macrargus).
Perro polaris (Eskov, 1986) | m f | Russia, Canada     [urn:lsid:nmbe.ch:spidersp:012331]
Pero polaris Eskov, 1986b: 1739, pl. 2, f. 1-6 (Dmf).
Perro putoranica (Eskov, 1986) | m f | Russia     [urn:lsid:nmbe.ch:spidersp:012332]
Pero putoranica Eskov, 1986b: 1739, pl. 1, f. 1-6 (Dmf).
Perro subtilipes (Tanasevitch, 1985) * | m | Russia     [urn:lsid:nmbe.ch:spidersp:012333]
Pero subtilipes Tanasevitch, 1985a: 55, f. 4-7 (Dm).
Perro tshuktshorum (Eskov & Marusik, 1991) | m f | Russia     [urn:lsid:nmbe.ch:spidersp:012334]
Pero tshuktshorum Eskov & Marusik, 1991: 245, f. 39-40, 46-49 (Dmf).
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