Fart first, 



Fig. 118. Euspongia officinalis 

 (Toilet sponge) attached to 

 a stone. In its living state, 



nat. size. p. 



Fig. 119. Tethya 

 lyncurium on a stone. 



p. 55. 



Fig. 120. Axinella faveolaria on a stone, 

 J / 2 nat. size. p. 55. 



Sea-weeds Red algae: Vidalia, brown fronds; the flat, thin, 

 pink and white, hard Coralline (calcareous). Green algge : 

 Codium, dark green balls; Valonia, glistening green ball-like 

 bubbles; Halimeda, cactus-like green jointed plants (calca- 

 reous). 



