The genus Pacifigorgia is revised based on original type-specimens and new specimens recently collected. In addition to P. irene Bayer and P. bayeri Breedy, which are the only well defined, seventeen other species are recognized as valid (P. adamsii, P. agassizii, P. arenata, P. cribrum, P. darwinii, P. douglasii, P. elegans, P. englemanni, P. exilis, P. eximia, P. gracilis, P. media, P. pulchra, P. rutila, P. stenobrochis, and P. tabogae). The species are described and illustrated in detail with photomicrographs and scanning electron micrographs of the sclerites. Lectotypes are proposed for eight species.
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