CHAPTER VI. 



THE ANTHOZOA. 1 



CLASS ANTHOZOA. 

 SUB- CLASS 1. ALCYONARIA. 

 GRADE A. PROTALCYONACEA (no Orders). 



GRADE B. SYNALCYONACEA. 



Order 1. Stolonifera. 



2. Alcyonacea. 



3. Pseudaxonia. 



4. Axifera. 



5. Stelechotokea. 



6. Coenothecalia. 



SUB-CLASS 2. ZOANTHARIA. 

 GRADE A. PARAMERA. 

 Order 1. Cerianthidea. 

 ,, 2. Antipathidea. 

 3. Zoanthidea. 

 4. Edwardsiidea. 

 5. Proactiniae. 



GRADE B. CRYPTOPARAMERA. 

 Order 6. Actiniidea. 



Sub-Order 1. Malacactiniae. 



2. Scleractiniae ( = Madreporaria). 

 Section 1. Aporosa. 

 2. Fungacea. 

 3. Perforata. 



THE animals which we now class together as Anthozoa have 

 been familiar to naturalists from the days of antiquity, but our 

 knowledge of their true nature and affinities is of comparatively 

 recent date. To this day we are far from being able to give a 

 satisfactory account of the relationships of the different groups 

 comprised in the class. 



1 By G. C. Bourne, M.A. 



