53 A MANUAL 



learnt a method of dividing the sea-anemones into 

 three natural groups, or genera, as they are called, 

 by which means our difficulties in the way of naming 

 our collected specimens are considerably diminished. 



I shall now conclude this chapter with a tabular 

 arrangement of these three groups, and of some of 

 the species which they contain, and which are usually 

 to be found at one or other of our best-known 

 watering-places. 



Should the reader require a more complete and 

 scientific arrangement he is referred to the Table 

 which ends Chapter VI. 



Group I. 



Skin smooth ; a row of beads on the oral disc, 

 close to the margin of the body, which contain 

 " spike-cases." 



1. Actinia mesemhryanthemum, 

 " The Common Sea - Anemone." 



Skin soft * 

 Varieties, a. Brown. 



h. Olive-green. 



c. Striped with pea-green on an apple- 

 green ground. 



* A soft, smooth skin, distinguishing it from the leathery, 

 smooth sldn of A. margaritifera. 



