Hydroidolina
Also known as Hydroid subclass
Hydroidolina is a subclass of Hydrozoa and makes up 90% of the class. Controversy surrounds who the sister groups of Hydroidolina are, but research has shown that three orders remain consistent as direct relatives: Siphonophorae, Anthoathecata, and Leptothecata.
Species
Subclass
- PhylumCnidaria
- ClassHydrozoa
Habitatmarine, brackish, freshwater
Los hidroidolinos (Hydroidolina) son una subclase de cnidarios hidrozoos que incluye las hidras, hidromedusas, y varios organismos marinos afines, muchos de los cuales crecen en grandes y elegantes colonias de pólipos. En los hidroidolinos suele predominar la fase de pólipo, y las colonias acostumbran a ser polimórficas y dioicas; todos los zooides de una colonia provienen, por reproducción asexual, de un solo progenitor zooide. En muchos casos, las medusas no llegan a separarse de la colonia, quedando reducidas a esporosacos o gonóforos.
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Article
9 sectionsContents
- Description and background
- Distribution
- Diet
- Anatomy and morphology
- Life cycle and reproduction
- Taxonomy
- Alternate classifications
- Ecological Impact
- References
Hydroidolina is a subclass of Hydrozoa and makes up 90% of the class. Controversy surrounds who the sister groups of Hydroidolina are, but research has shown that three orders remain consistent as direct relatives: Siphonophorae, Anthoathecata, and Leptothecata.
== Description and background == The phylum Cnidaria contains two clades: Anthozoa and Medusozoa. There are around 3800 species within the clade Medusozoa and it consists of Cubozoans, Scyphozoans, and Hydrozoans.