Sea anemones of the genus Cribrinopsis Carlgren, 1921 from the NE Pacific are revised. Specimens traditionally identified from this region as Cribrinopsis fernaldi Siebert & Spaulding, 1976, actually represent two distinct species with different morphology and habitat. One species has long tentacles, a ring of distinct rounded marginal projections, a white column and usually inhabits muddy bottom. The other has short tentacles, no special marginal projections, a bright coloration (usually variations of red and occasionally white), and inhabits rocky substrates. Additionally, the distinction of two sympatric species is supported by molecular analysis. The holotype of C. fernaldi was re-examined, which revealed that in its original description several key features of this species were incorrectly described. The holotype is conspecific with the first (white) species, which therefore should retain the name C. fernaldi. The other species is described as Cribrinopsis rubens sp. nov. Study of the holotype of another Cribrinopsis species previously reported from the NE Pacific, Cribrinopsis williamsi Carlgren, 1940, showed that this species does not resemble any known actiniid species from the NE Pacific. It probably does not belong to Cribrinopsis and its taxonomic position needs further investigation.