Across
- 3. from very anterior to first #4
- 5. from #18 to very posterior
- 6. control changes in direction
- 8. from #4 to #18
- 10. open into the pharynx
- 11. used in copulation
- 17. serves as stabilizers,modified in males
- 19. found at the end of the tail
- 20. in place of eyelids
- 21. snout
- 22. another name for #14
Down
- 1. derived from the dermis
- 2. asymmetric dorsoventrally
- 4. entrance into gill chambers
- 7. leads to olfactory sacs
- 9. white line appears on both sides of #8
- 12. type of camouflage
- 13. the innermost layer of a #14
- 14. there are modified as teeth
- 15. serve as stabilizers
- 16. derived from the epidermis
- 18. excretory and reproductive opening