Chordata:
1. Pharyngeal gill slits are present.
2. Central nervous system is hollow and dorsal in position.
3. Nontochord persists in embryo or throughout the life.
ADVERTISEMENTS:
4. Post- anal is present in embryo or adult.
5. Heart is ventral in position.
6. Hepatic portal system is present.
Non-Chordata:
ADVERTISEMENTS:
1. Pharyngeal gills slits are absent.
2. Central nervous is solid and ventral in position.
3. Notochord is absent.
4. Post anal tail is absent.
ADVERTISEMENTS:
5. Heart is dorsal in position.
6. Hepatic portal system is absent.