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The lowest form of the Cnidaria is also not far removed from the gastraeads.
2
Their phylogeny has remained problematic, with studies placing them within either the Bilateria or Cnidaria.
3
The lowest Cnidaria (the hydroid polyps) also are little superior to the Gastraeads in structure.
4
Radiata, that include the phylum Cnidaria, have a blind-sac form of digestive tract with only one opening.
5
These special excretory organs are not found in the other Coelenteria (Gastraeads, Sponges, Cnidaria) or the Cryptocoela.
1
I do not know that "Coelenterata" is Lankester's speciality.
2
Shunting "Actinozoa" to "Coelenterata" would do no harm, and would have the great merit of letting me breathe a little.
3
Leuckart proposed to subdivide the Radiates into two groups: the Coelenterata, including Polyps and Acalephs or Jelly-Fishes,-andEchinoderms, including Star-Fishes ,Sea-Urchins ,andHolothurians.
4
I think -is like enough to do the "Coelenterata" well if you can make sure of his doing it at all.
5
He suggests at once that "Hydrozoa" and "Actinozoa," in his list, should be dealt with by the writer of the article "Coelenterata."]
Usage of phylum cnidaria in inglés
1
Radiata, that include the phylumCnidaria, have a blind-sac form of digestive tract with only one opening.