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Noun: class Hydrozoa
  1. Coelenterates typically having alternation of generations; hydroid phase is usually colonial giving rise to the medusoid phase by budding: hydras and jellyfishes
    - Hydrozoa

Type of: class

Part of: Cnidaria, Coelenterata, phylum Cnidaria, phylum Coelenterata

Nearest

class Gnetopsida
class Gymnospermae
class Hemiascomycetes
class Hepaticae
class Hepaticopsida
class Heterokontae
class Hexapoda
class Hirudinea
class Holothuroidea
class Hyalospongiae
class Hydrozoa
class Hymenomycetes
class Insecta
class Lamellibranchia
class Larvacea
class Liliopsida
class list
class Lycopodiate
class Lycopodineae
class Lycopsida
class Magnoliopsida