HOLOI IIIIMA. 67 



PLATK X . Th.- -vanu-. in an earlier Btage of regeneration. TVnta.-ula. . 



PMTinr orifice. //. 



PI.ATK XI 



Fi<:. 1. ^ ,>ung Holotkuriafunu. 



2. Sucker enlarged. 



3. TVntaoiilmn. 



4. Antennula enlarged. 



5. Spawn of the specimen, Plat.' IX.. slight 1\ i-nlarged. 



6. The saino mure enlarged. 



7 L.IW.T . vtP'inity of the cylinder or ca*e bearing the tcnUcula : 

 Ampulla Poliana bcl<> 



8. C\linilT. trntacula, and intcotimil organization, after having DMA 



discharged. 



9. Kxtn-uiity of a rope of an ovarium. 



10. The nine enlarged. 



1 1 . Extremity of the rope* of an ovarium enlarged. 

 I'-'. Ova. 



13. Ova enlarged. 



1 4. Ova enlarged. 



15. Ova enlarged. 



16. Miimtf Holothuria. 



17. The tame in iU natural and peculiar attitn 



1'i.m. XII 



Fie;. 3. Arborescent apparatus. Shelly sheaths receiving the tenUcula, a. 



Ampulla Poliana below. 



4. Intestinal organ lost along with th<> tentaculn. which latter are 

 not represented here. Their sheaths and la*o. a, b; Ampulla 

 Poliano 



3. HOLOTIIURIA SomcA. Plates XII XIII. 



From uliat has been already said, it is indwputaMf. that tlic hut- 



t-r\ nf tin- Holothuria is very iinjMTtt-ctly understootl. that it in clouded 



by ci}).-nriti-s cvi-n at tin- i-n-mt day : Neither can we refrain from 



presuming that these havr diictly arose from mnitting to brin-_' <n-li 



uiii'iif as mi^'lit !>< jiroi-UR-d undi-r iniinctliatf 



