| 11. | Animals in the phyla cnidaria and echinodermata are radially symmetric,
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| 12. | A Natural History of the phyla of the Animal Kingdom.
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| 13. | No new phyla have appeared, and many have gone.
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| 14. | Perhaps the phyla of the Bacteria ? the classes of the Fungi?
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| 15. | Do rain-forests have more or fewer different phyla than tundras?
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| 16. | Smaller phyla related to them are the Kinorhyncha, Priapulida, and Loricifera.
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| 17. | The relationship of gastrotrichs to other phyla is unclear.
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| 18. | However most of these phyla left no modern descendants.
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| 19. | These phyla are Placozoa, Orthonectida, and Rhombozoa.
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| 20. | Clusters are equivalent to macro-families ( or phyla or superfamilies ).
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