26 ZOOPHYTA. 



Sub- Order I. ACTINAEIA. 



Tentacles many, in imperfect series, or scat- 

 tered ; corallum (when present) calcareous, cells 

 many-rayed Astrceacea. 



Tentacles many, in 2 or more series : mostly 

 increasing by lateral buds ; corallum (when pre- 

 sent) calcareous, cells many-rayed . . . Caryophyllacea. 



Tribe I. Astr^eacea. 

 With no corallum : — 



