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DescriptionBeroe cucumis is a medium-sized, sack-shaped comb jelly. It may reach up to 15 cm in length. It is completely transparent in colour. It swims with eight longitudinal combs that give the comb jellies (ctenophores) their characteristic shimmering appearance. These combs consist of plates of transverse rows of hairs that beat in waves downwards, which produces the shimmering effect. These plates are phosphorescent at night.Beroe cucumis is carnivorous and feeds on other comb jellies, particularly Bolinopsis infundibulum. Instead of sticky tentacles or large oral lobes, the large mouth is used to engulf prey whole (Greve, 1975).