ACTINIA. 249 



white, the rest of the same colour as the stem. The feelers 

 are of a whitish colour^ varied at the upper part with 

 several cross lines and brown spots of an irregular figure, 

 like the backs of some snakes." The warts with wliich 

 the Actini/B of this section are marked, are all perforated, 

 so that water contained in the body is often ejected through 

 them. They form also, according to Mr. Cocks, the points 

 of adhesion for all the stones, shell, and sand which cover 

 the body, and are therefore suctorial. 



15. Actinia monile, J. Templeton, 

 Hab. Belfast Lough, rare ; Templeton. 



Body cylindrical, greenish, marked with about sixteen 

 lines of bead-like tubercles ; when contracted, scarcely larger 

 than a pea. 



16. Actinia coriacea. 



Hab. Between tide-marks, buried in crevices of rocks, 

 and in sand, common. 



It is about two inches in diameter at the base, variously 

 coloured, often reddish, blotched with green, covered with 

 many pale perforated w^arts ; the tentacula are numerous, in 

 three or four series. It attaches itself to sand-covered 

 rocks, and is often pretty much buried in the sand, so as to 

 be partly concealed when in a contracted state. Its warts 



