(49) Solitary [VunguUa) 



Colonial (50) 



(50) Subdendroid. Mature polyps not continuous (Anomocora) 



Dendroid or phaceloid [Solenosmitia] 



(51) Paliform lobes before third cycle [Caryostnilia] 



Lobes before all but last cycle (Asterosmilia) 



(52) Columella absent [Schizocyathus) 



Columella present (53) 



(53) Pali absent (Quynia) 



Pali in one crown of six (Stenocyathus) 



(54) Columella feeble or absent (55) 



Columella parietal. Corallum turbinate-trochoid ....[Qardineria) 



{55) Corallum cuneiform or compressed turbinate. No basal 



rootlets CTlaheUum') 



Basal rootlets developed [Monomyces') 



(56) Septa normal in ephebic stage (57) 



Septa according to Pourtales plan in ephebic stage (61) 



(57) Solitary (58) 



Colonial -- (60) 



(58) Costae distinct [7rochopsammia) 



Costae replaced by spines (59) 



(59) Columella feeble (Jhecopsammia] 



Columella well developed —- [Bathypsammia') 



(60) Corallum dendroid [SnaUopsammia^ 



Corallum plocoid - ( Juhastrea) 



(61) Solitary CBalanophyUia) 



Colonial, dendroid [VendrophyUia) 



i08 



