Hydroida
- Hydroida
- Hydroidea Hy*droi"de*a, n. pl. [NL. See {Hydra}, and {-oid}.]
(Zo["o]l.)
An extensive order of Hydrozoa or Acaleph[ae]. [Written also
{Hydroida}.]
[1913 Webster]
Note: This order includes the hydras and the free-swimming hydromedus[ae], together with a great variety of marine attached hydroids, many of which grow up into large, elegantly branched forms, consisting of a vast number of zooids (hydranths, gonophores, etc.), united by hollow stems. All the zooids of a colony are produced from one primary zooid, by successive buddings. The Siphonophora have also been included in this order by some writers. See {Gymnoblastea}, {Hydromedusa}, {Gonosome}, {Gonotheca}. [1913 Webster]
The Collaborative International Dictionary of English. 2000.
Look at other dictionaries:
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Hydroida — is an obsolete cnidarian order which united such animals as hydras, hydromedusae, and many marine attached hydroids. However, the group is paraphyletic and not composed from close relatives. But for the largest part, this group makes up what… … Wikipedia
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Hydrozoa — Taxobox name = Hydrozoa image width = 240px image caption = Closeup of a hydrozoan colony regnum = Animalia subregnum = Eumetazoa phylum = Cnidaria subphylum = Medusozoa classis = Hydrozoa classis authority = Owen, 1843 subdivision ranks =… … Wikipedia
Hydraire — Hydrozoa Cet article est une ébauche concernant les cnidaires. Vous pouvez partager vos connaissances en l’améliorant (comment ?) selon les recommandations des projets correspondants … Wikipédia en Français
Hydrozoa — Cet article est une ébauche concernant les cnidaires. Vous pouvez partager vos connaissances en l’améliorant (comment ?) selon les recommandations des projets correspondants … Wikipédia en Français
Hydrozoaire — Hydrozoa Cet article est une ébauche concernant les cnidaires. Vous pouvez partager vos connaissances en l’améliorant (comment ?) selon les recommandations des projets correspondants … Wikipédia en Français
Hydrozoaires — Hydrozoa Cet article est une ébauche concernant les cnidaires. Vous pouvez partager vos connaissances en l’améliorant (comment ?) selon les recommandations des projets correspondants … Wikipédia en Français
Aequorea victoria — Saltar a navegación, búsqueda ? Aequorea victoria … Wikipedia Español


