ACTINOZOA 



247 



Astrjeid;e : 



Dlmorphastrcsa. 



Pleurocora. 



FUNGID^E. 



Micrabacia. 



Anabacia. 



Genabacia. 



Madreporid,*;. 

 Actinacis. 



FAVOSITIDiE. 



Koninckia. 



MlLLEPORIDJE. 



Polytremacis. 

 Stauridje. 

 Holocystis. 



12. Tertiary Corals. 



The Tertiary formations are abundantly sup- 

 plied with Corals, chiefly belonging to the Apo- 

 msa and Perforata. The Tabulata are repre- 



sented by a single genus, 

 traces of Alcyonaria. The 

 tharia now first present the: 



There are distinct 

 Sclerobasic Zoan- 

 Lselves. Here, too. 



appear for the first time the Dasmidce and Stylo- 

 phoridce, whose claim to the rank of distinct 

 families is somewhat doubtful. The 



Dasmidce 



followin 



not survive the period. The 

 restricted to the Tertiary deposits : 



TURBINOLIDJE. 



Conocyathus. 



Deltocyathus. 



Leptocy athus . 



Ecmesus. 



Turbinolia ? 



Piatytrochus, 



Ceratotrochus. 



Discotrochus. 

 Dasmidce. 



Basmia. 

 Oculinidjs. 



Diplohelia. 



Astrohelia. 

 Stylophorid^e. 



Arceacis. 



Cyclosmilia. 

 Dendrosmilia. 



Haplocoenia. 



Circophyllia. 



Tichastrcea. 



Metastrcea. 



Cryptangia. 



Cladangia. 

 Fungidje. 



Trochoseris. 



Cyathoseris. 

 Madreporid^e. 



Lobopsamnia. 



Stereopsamnia, 



Dendracis. 



PORITIDiE. 



Litharcea. 



MlLLEPORID^E. 



Axopora. 

 Pennatulidje. 

 Graphularia. 



B 4 



* 



