Colga is a genus of sea slugs, specifically nudibranchs, shell-less marine gastropod molluscs in the family Polyceridae.
Species Species in the genus Colga include: Colga minichevi Martynov & Baranets, 2002 Colga pacifica (Bergh, 1894) Colga ramosa (Verrill & Emerton, 1881): synonym of Kaloplocamus verrilli Martynov, 2002 Colga villosa (Odhner, 1907)
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