AFFINITIES OF THE UNITED STATES CORALS. 33 



gether satisfactory, but in only one instance have I identified an American 

 with a European coral. The analogy between species is usually between 

 those occupying the same relative stratigraphic positions. 



There seems no resemblance between the species from the North 

 American Continent and those from the West Indian Islands. Not a single 

 species has been found common to the two regions. 



This is not true of the Upper Oligocene and later corals of the Florida 

 region and the West Indian fossil and recent faunas; but usually there is 

 considerable difference in these. 



GENERIC AFFINITIES OF THE EOCENE CORAL FAUNA OF THE GULF 

 REGION WITH RECENT FAUNAS. 



The following is the geographic distribution of tlie recent genera found 

 also in our Eocene deposits, taken for the most part from Duncan's 

 Revision of the Genera of the Madreporaria: 



Flabellum, almost universal. 



Sphenotrochus, Mediterranean Sea and North Africa, coast of Brazil, European 



coasts of North Atlantic Ocean, South Australian coasts. 

 Platytrochus, Australian seas (?) 

 Turbinolia, Caribbean Sea (Pourtales). 

 Trochocyathus, West Indies, South American seas. 

 Paracyathus, Mediterranean Sea, Indian Ocean, Pacific Ocean, California (Pearl 



I.slands), Caribbean Sea, North Atlantic Ocean, Josephine Bank. 

 Caryophyllia, littoral and deep sea, very general. 



Oculina, Indian Ocean, Pacific Ocean (?), Florida, and Caribbean Sea, Bermudas. 

 Amphihelia, Atlantic Ocean, Caribbean Sea, Mediterranean Sea, Australian seas, 



Formosa. 

 Stylophora, Red Sea, Indian Ocean, Cape of Good Hope, Chinese seas, Australian 



seas (?) 

 Madracis, Madeira, Florida, Caribbean Sea, Brazil, Isle de Bourbon, Indian Ocean, 



Adriatic Sea (von Heider). 

 Parasmilia, Caribbean Sjea, Philippines. 

 Astrangia, East Indies, Florida, Central America, Panama Bay, east and west coasts 



of North America, Strait of Magellan. 

 Cladocora, West Indies, Mediterranean Sea, Madeira. 



Favia, West Indies, Red Sea, Indian Ocean, Pacific Ocean, Australian seas. 

 Dichoccenia, West Indies, East Indies. 

 Astroccenia, Caribbean Sea. 

 Stephanoccenia, West Indies. 

 MON XXXIX 3 



