ACTINOZOA. 



189 



1 . The number of buds which each corallite pro- 



duces : 



2. The frequency with which the budding process 



is repeated; whether once only or several 

 times during the life of the corallite, but at 

 different stages of its growth : 



Fig. 33. 



Dendbophyllia nigrescens: — Part of a branch, in outline, 

 of the natural size. A single polype is shown separately, mag- 

 fied. 



3. The height which each corallite attains : 



4. The angle at which the growing buds diverge 



from the parent corallite : 



5. The degree of rapidity with which such diver- 



gence takes place : 



6. The position of the buds produced ; from one 



side only of the budding corallite, or indif- 

 ferently from any part of its circumference ; 

 at a short distance from its base, or relatively 

 nearer to the edge of the calice : 



