104 A MANUAL OF SEA-ANEMONES. 



that, liowever they may differ in colour, and even in 

 the number of tentacles (arising from their dif- 

 ference of age), they may yet be classed under one 

 typical form, which I have described in the fore- 

 going Table as characteristic of the species. 



It is only by collecting and comparing vast 

 numbers of Actinice that we can arrive at a trust- 

 worthy generalization with regard to the charac- 

 teristics of genera, species and varieties. 



