22 



GUIDE TO THE CORAL GALLERY. 



High Cases 

 I.-VI. and 



Table Cases 

 1 and 2 a, b. 



Fig. 3. 



A. Halichonrfria panicea. Vertical section X 100. Partly diagrammatic. 

 a, oscnle ; h, pores ; c, wliip chambers, b. Dermal membrane or skin with 

 l)ores X 100. c. Whip chamber X 1,000 (after Vosmaer). d. Skeleton 

 spicule X 100. 



