HOLOTHURIA. 79 



Plate XIV. 



Fig. 4. White specimen. 



5. White specimen. 



6. Tentacuhmi. 



7. Tentaculum. 



8. Tentaculum. 



9. Tentacula and antennulse enlarged, shewing their structure and 



comparative dimensions. 



10. One of two portions produced by the spontaneous division of 



fig. 2— June 28. 



11. The other of the two portions of fig. 2 — June 28. 



12. Fig. 10, represented two months later — August 29. 



13. Fig. 11, represented two months later — August 29. 



14. Half of a divided specimen as it appeared August 29. 



15. The other half of the same specimen — August 29. 



16. Upper half of a specimen, which divided July 25, as it appeared 



July 29. 



17. Under half of the same specimen, which divided July 25, as appear- 



ing July 29. 



18. Upper half of fig. 17, after its own subdivision, as seen on August 5. 



19. Under half of fig. 17, after its own subdivision, as seen on August 5. 



20. Fig. 16, there represented as on July 29, seen here a week later, as 



on August 5. 



21. Fragment as seen on August 5. 



22. Specimen in the fact of subdivision, where the two parts separating 



are still connected by a slender ligament — August IS. 



23. Specimen whereof an intestinal portion seemed protruding — Sep- 



tember 19. 



24. Specimen whereof the division was protracted during four days. 



25. Minute fragment. 



§ 5. HoLOTHURiA Phantapds. — Plate XV. 



K the appearance of all the species of the Holothuria be singular, 

 this may be truly described as the most remarkable of the whole : I know 

 not any famihar object to which it may be compared. 



