Phylum Chordata The invertebrate chordates
- All chordates possess a notochord.
- Long felxable rod between gut & nerve cord
- Runs most of length of animal
- Possess a dorsal, hollow, nerve cord
- Possess pharangeal slits
- Muscular post-anal tail
Subphylum Urochordata
- Commonly called turnicates
- Sessile marine animals as adults - Motile as larva
- Larva possess a clear notochord which is less evident in adults
- Filter feed through use of siphon
Subphylum Cephalochordata
- Commonly known as lancets
- Have all features of the ideal chordate
- Bury selves in sand, and filter-feed through mouth
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