IS composed of large clear cells with thick walls and apparent- 

 ly arranged in a single series, the chorda cells common in the 

 tentacles of coelenterates The base of the stem by which 

 the scyphistoma is attached to foreign bodies is broadened a 

 little into a foot. The cuticula extends nearly half the 

 length of the stem and is in very intimate contact with the 

 tissue of the plant, or other body, to which the animal is at- 

 tached. There are short, thread-like processes from the sup- 

 porting substance of the foot into this part of the cuticula. 



Fig. 11 will give an idea of the appearance of a sc;inohis- 

 toma with the sixteen tentacles well developed. They are now 

 long and graceful and ornamented by clusters of nettle cells, 

 that are scattered thickly over the surface, most thickly at 

 the tip. The mouth is now becoming quadrate, Fig. 12, and 

 there is a nice co-ordination between the movements of the ten- 

 tacles and of the mouth. Food is captured by the tentacles. 

 As soon as the tentacle attaches itself to its prey it is whip- 

 ped quickly into the mouth, which simultaneously opens toward 

 the tentacle affected. Once, I saw food taken by two tenta- 

 cles at the same instant, and the mouth opened in both direc- 

 tions at one time. 



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