Search for class Hydrozoa returned 6,137 results.

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Species (4,503)
Unranked (777)
Genus (627)
Family (161)
Subspecies (45)

Form (11)
Order (7)
Variety (6)

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genus: Athorybia Eschscholtz, 1829

Kingdom: Animalia
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genus: Kirchenpaueria Jickeli, 1883

Kingdom: Animalia
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- Occurrences: 315
genus: Crystallophyes Moser, 1925

Kingdom: Animalia
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genus: Antennellopsis Jäderholm, 1896

Kingdom: Animalia
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- Occurrences: 5
genus: Eudoxoides Huxley, 1859

Kingdom: Animalia
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genus: Halopsis Agassiz, 1865

Kingdom: Animalia
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- Occurrences: 1
genus: Plicatotheca Calder & Vervoort, 1986

Kingdom: Animalia
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genus: Apolemia Eschscholtz, 1829

Kingdom: Animalia
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- Occurrences: 17
genus: Marrus Totton, 1954

Kingdom: Animalia
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- Occurrences: 2
genus: Cladosarsia Bouillon, 1978

Kingdom: Animalia
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