Classification of the subgenus Paciphacops (Viaphacops)

G. †Viaphacops Maximova 1972
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Phacops cristata vitrea Lespérance 1991
Viaphacops canadensis Stumm 1954
Viaphacops cristatus Hall 1861
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Viaphacops nasutus Stumm 1954
Viaphacops pipa Hall and Clarke 1888
Viaphacops venezuelensis Carvalho and Moody 2000