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Hydrozoa
MeSH Descriptor Data 2025
Details
Qualifiers
MeSH Tree Structures
Concepts
MeSH Heading
Hydrozoa
Tree Number(s)
B01.050.500.308.485
Unique ID
D037402
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D037402
Annotation
do not confuse entry term
LIRIOPE TETRAPHYLLA
with
LIRIOPE PLANT
Scope Note
A class in the phylum
CNIDARIA
which alternates between polyp and medusa forms during their life cycle. There are over 2700 species in five orders.
Entry Term(s)
Hydrozoans
Liriope tetraphylla
Physalia
Physalia physalis
Portuguese Man-of-War
Registry Numbers
txid6074
txid168774
txid37524
txid168775
Related Numbers
txid168774
txid168775
txid37524
Previous Indexing
Cnidaria (1986-2002)
Public MeSH Note
2003; see HYDRA 1997-2000, see CNIDARIA 2001-2002; for PHYSALIA & PORTUGESE MAN-OF-WAR see JELLYFISH 1998-2002
History Note
2003; use HYDRA 1997-2000, use CNIDARIA 2001-2002; for PHYSALIA & PORTUGESE MAN-OF-WAR use CNIDARIA 1998-2002
Date Established
2003/01/01
Date of Entry
2002/07/03
Revision Date
2020/08/13
Allowable Qualifiers
anatomy & histology (AH)
chemistry (CH)
classification (CL)
cytology (CY)
drug effects (DE)
embryology (EM)
enzymology (EN)
genetics (GE)
growth & development (GD)
immunology (IM)
metabolism (ME)
microbiology (MI)
parasitology (PS)
pathogenicity (PY)
physiology (PH)
radiation effects (RE)
ultrastructure (UL)
virology (VI)
Eukaryota [B01]
Animals [B01.050]
Invertebrates [B01.050.500]
Cnidaria [B01.050.500.308]
Anthozoa [B01.050.500.308.237]
Cubozoa [B01.050.500.308.361]
Hydrozoa [B01.050.500.308.485]
Hydra [B01.050.500.308.485.400]
Myxozoa [B01.050.500.308.550]
Scyphozoa [B01.050.500.308.690]
Expand All
Collapse All
Hydrozoa
Preferred
Concept UI
M0010675
Registry Numbers
txid6074
Related Numbers
txid168774
txid168775
txid37524
Scope Note
A class in the phylum
CNIDARIA
which alternates between polyp and medusa forms during their life cycle. There are over 2700 species in five orders.
Terms
Hydrozoa
Preferred Term
Term UI
T020616
Date
10/10/1996
LexicalTag
NON
ThesaurusID
NLM (1998)
Hydrozoans
Term UI
T479749
Date
01/29/2002
LexicalTag
NON
ThesaurusID
NLM (2003)
Physalia
Narrower
Concept UI
M0011849
Registry Numbers
txid168774
Terms
Physalia
Preferred Term
Term UI
T022773
Date
10/10/1996
LexicalTag
NON
ThesaurusID
NLM (1998)
Liriope tetraphylla
Narrower
Concept UI
M0397372
Registry Numbers
txid37524
Scope Note
A species of hydrozoan sea organism, not to be confused with
LIRIOPE PLANT
.
Terms
Liriope tetraphylla
Preferred Term
Term UI
T460204
Date
09/04/2001
LexicalTag
NON
ThesaurusID
NLM (2003)
Portuguese Man-of-War
Narrower
Concept UI
M0412730
Registry Numbers
txid168775
Terms
Portuguese Man-of-War
Preferred Term
Term UI
T022771
Date
10/10/1996
LexicalTag
NON
ThesaurusID
NLM (1998)
Physalia physalis
Term UI
T479880
Date
01/29/2002
LexicalTag
NON
ThesaurusID
NLM (2003)
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