PLANAR1A. 127 



PLATE XIV. 



FIG. 26. Empty capsules left by the young Planaria, enlarged. 



27. Planaria maculata, back. 



28. The same, belly. 



29. Another specimen, back. 



30. The same, belly. 



31. Another specimen, back, slightly enlarged. 



32. Another specimen, mottled ; back, slightly enlarged. 



33. Anterior surface, shewing the position of the ocular specks, enlarged. 



34. Patch of Spawn. 



35. The same, enlarged. 



36. Planaria haustrum, back, enlarged. 



37. The same, belly. 



PLATE XV. 



FIG. 1. Larvae, supposed to have issued from the spawn of the Planaria 

 cornuta enlarged. 



2. The same, farther advanced. 



3. Empty capsules. 



4. Planaria lactea, shewing the internal vessels, enlarged. 



5. Anterior portion, shewing the position of the eyes, and precise form 



of the vessels, more enlarged ,, 



6. Posterior portion of the same. [The middle portion is omitted pur- 



posely]. 



7. Planaria fodincs. 



8. The same, enlarged. 



9. Head, more enlarged, shewing the position and appearance of the 



eyes, more enlarged. 



10. Specimen containing an ovum, enlarged. 



11. The same, more enlarged. 



12. Ova, enlarged. 



13. Planaria exigua, enlarged. 

 1-4. The same, more enlarged. 



15. Planaria emeus, enlarged. 



16. The same, more enlarged. 



17. The same, more enlarged. 



18. Planaria nigra, ova on a blade of grass. 



19. Group of the same, enlarged. 



20. Planaria serpentina, enlarged. 



21. Planaria prasina. 



