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Hydrozoa (hydrozoans; from
Ancient Gr**** ὕδωρ (húdōr) 'water' and ζῷον (zôion) 'animal') is a
taxonomic class of
individually very small,
predatory animals...
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Schuchert P, ed. (2012). "Turritopsis
dorhnii (Weissmann, 1883)".
World Hydrozoa database.
World Register of
Marine Species.
Retrieved November 29, 2012...
- Cnidaria, and is
often considered a subphylum. It
includes the
classes Hydrozoa, Scyphozoa,
Staurozoa and Cubozoa, and
possibly the
parasitic Polypodiozoa...
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Siphonophorae (from Gr**** siphōn 'tube' +
pherein 'to bear') is an
order within Hydrozoa,
which is a
class of
marine organisms within the
phylum Cnidaria. According...
- sea pens);
swimming Scyphozoa (jellyfish);
Cubozoa (box jellies); and
Hydrozoa (a
diverse group that
includes all the
freshwater cnidarians as well as...
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created by A.K.
Totton in 1954 to
accommodate these unusual genera of
Hydrozoa as
their taxonomic affinities were unclear. They had
previously been placed...
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related more
closely to
scyphozoan jellyfish than
either are to the
Hydrozoa.
Hydrozoa medusae also have tetra-radial symmetry,
nearly always have a velum...
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classification Domain:
Eukaryota Kingdom:
Animalia Phylum:
Cnidaria class:
Hydrozoa Order:
Anthoathecata Family:
Corynidae Genus:
Coryne Gaertner, 1774 Species...
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Velella is a
monospecific genus of
hydrozoa in the
Porpitidae family. Its only
known species is
Velella velella, a
cosmopolitan (widely distributed) free-floating...
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animal species that have both
polyp and
medusa stages in
their life cycle.
Hydrozoa belongs to the
phylum Cnidaria,
which are
aquatic (mainly marine) organisms...
