6. Not a caecilians character
- limbless elongated annulated body
- oviparous and vivparous
- scales under skin in dermal pockets
- open amphibian skull
- tentacles, with stereolfactory system
- male penis formed from gut, some with spines
7. anceint amphibian jaw muscles
- gap in cheek region for jaw muscles
- retroarticular process
8. caecilian jaw muscles
- retroarticular process
- gap in cheek region for jaw muscles
