Trachylinae
Trachylinae (also Trachylina, Trachylinida, etc.) is a subclass of hydrozoans. It is placed at order rank in many older classifications, and limited to contain the Narcomedusae and Trachymedusae. But the Actinulidae, then considered an independent order, and probably also the Limnomedusae which were traditionally placed in the paraphyletic "Hydroida", belong to this group too. It is not entirely clear whether the Limnomedusae and the Trachymedusae as conventionally circumscribed are monophyletic[1]
| Trachylinae | |
|---|---|
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| Crossota sp. | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Cnidaria |
| Class: | Hydrozoa |
| Subclass: | Trachylinae Haeckel, 1879 |
| Orders | |
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| Synonyms | |
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The freshwater jelly Craspedacusta sowerbyi is a well-known member of the Limnomedusae and might thus belong here.
Footnotes
- Schuchert (2005)
gollark: It is one of those conclusions which follows from premises which some people agree with.
gollark: See, this is a different argument which I also don't agree with.
gollark: Which is bad.
gollark: If we value people who *could exist* over people who exist now, we have to force everyone to have the maximum number of children possible.
gollark: This is a bad line of argument.
References
- Schuchert, Peter (2005): The Hydrozoa Directory - Hydrozoan Phylogeny and Classification. Retrieved 2008-JUL-08.
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