KnowraHydrozoaLinked fromLinked fromThe 8 pages that link to Hydrozoa, each with the reason it gives.All 8Broader topic 1Related 1Narrower topic 4Compared with 2JellyfishRelated: Several small jellyfish are hydrozoans, although the class also includes colonial forms.Medusa (biology)Broader topic: Hydrozoans show that medusae can be small, reduced, or absent in some lineages.Portuguese man o' warNarrower topic: Siphonophores are hydrozoans with highly integrated colonies.ScyphozoaCompared with: Hydrozoans often emphasize the polyp stage, unlike the prominent medusae typical of scyphozoans.Box jellyfishCompared with: Hydrozoans share the cnidarian ancestry but differ in body forms and life cycles.SiphonophoreNarrower topic: Siphonophores are hydrozoans, sharing the group’s cnidarian body plan and life-history traits.Praya dubiaNarrower topic: This class provides the broader cnidarian lineage to which Praya dubia belongs.Turritopsis dohrniiNarrower topic: Turritopsis dohrnii belongs to this diverse cnidarian class.