smm runs of se i anemoses 





soak in it for two or three days until the become hard en 



id cut well. Then verticidand ti ay 1» made with 



n sharp knife. The first fuel to oh i tlial :id alimentary i 



is much more clearly indicated than in the //>. 



linct digestive sac, separate from the body-walls, hanging suspended 



from the mouth opening, and held in place by six pariiiioi 



teriss), which divide the body-cavity into a number of chain 



The digestive sac is i d, bul is open al lom of the body, 



connecting directly with the chambers, so lhal • 



net of digestion, passes dowu to the floor of the body, and theu into 



each of the chambers. On the free edges of the shorter meseuu 



which (l<> not extend out to the stomach, there is a mass of long 



filaments, the mesenterial fil im< nl - Fi ■ 30, a i, which contain I 



cells. Ln dissecting the S( i-anemone enterial filament 



always more or less in the way. and huvi carefully re v 



as to expose the ovaries and adjoinii - They press out of the 



mouth and ci small openings through the body-walls), not 



always present, and end of the tenia- 



, and thus come in contact with 

 animals forming their food. The fig- 

 ure shows at the base of the body the 



■ edges i i the mesi nt< ries i m) of 

 different heights, with the spaces be- 

 tw< en ih( in through w hich the cby me 

 p lases into the body cavity. For the 

 complete passage of the circulating 

 Quid the Bis primarj mesenteries nre 

 perforated by a large orifi< more 



or less oval or kidney-shaped in out- 

 line (Fig. 80). The <1 i u< stive Ba 

 vided into two divisions, the throat 



and stomach proper, the latter w lien Flo 



the animal is contracted being much 

 shortened, and with the walls vcrli- 

 cally folded, as seen in the cut. 



In the tentacles are lodged the I 

 cells, and the tenlacli - are hollow, 

 communicaliug direct'y \\ith a cham- 

 1 cr or space between the mesenteries, and are open at the end. When 

 a passing shrimp, small fish, or worm comes m contact with these 

 tentacles, the lasso-threads are thrown out, the victim 

 oilier tentacles assisl in dragging il into the distensible mouth, where 

 it is partly digested, and the process mpleted in the second or 



lower division of the digestive canal. The b r hard 



Partly diagram 

 sketch of ihe anatomy of an 

 Vcticia I t/- tridi um i « iili the 

 tentacles disproportionately 

 enlai »:m. me. 



Bentertes 



cinclides; cr, mesenterial 

 ment 

 through the septa. 



