MISCELLANEOUS. 259 



Plate XVI. Fig. 1. Alcyonium gelatinosum? 



2. 3. Gemmules obtained on January 16. 

 4. 5. Other gemmules obtained on January 30. 

 6. Gemmules obtained on March 12. 



VI. Alcyonella stagnorum, Vol. II. Chapter VI. § 2. p. 105. — The 

 Polype apannache of Trembley is not, as some suppose, the Cristatella, 

 but the Alcyonella stagnorum. 



That author observed the ova when detached from the decaying 

 hydra passing below others, after the manner of those specified in the text. 



It is difficult to comprehend the nature or description of the Bell-flower 

 animal by Baker. He assigns the hydra forty tentacula ; affirming that 

 about fifteen hydra compose a colony, which can shift its place ; that the 

 colony multiplies by division, when the portions separate, and sometimes 

 withdraw. 



Baker compares the whole colony to a bell about half an inch long, 

 and a quarter of an inch in diameter. 



But I cannot reconcile these peculiarities with the form and pro- 

 perties of either the Alcyonella or the Cristatella inhabiting Scotland. 



VII. Lobularia, Vol. II. Chapter IX. § 1. p. 181. — Plate XLII. 

 Figs. 6, 7. — On the first of June single ova were visible under the skin, 

 in different parts of a fine large orange specimen, which was much dis- 

 tended. 



Others appeared, besides, in several of the distended hydra?, being 

 from one to ten in each, but not in any definite arrangement. Their posi- 

 tion was between the stomach and the integument of the hydra, much 

 reminding me of the aspect of the decaying Alcyonella. However, there 

 was no motion here. The pectinate tentacula were never displayed : nor 

 did the Lobularia survive to produce the ova naturally, having probably 

 suffered some previous injury. 



Plate XLII. Fig. 6. Hydra? containing ova. 



7. Three of the same, enlarged. 





