210 BULLETIN 103, UNITED STATES NATIONAL MUSEUM. 



Species of corals from the Anguilla formation. 



Name. 



Stylophora imperatoris Vaughan 



Orbicella imperatoris Vaughan 



costata (Duncan) 



canalis Vaughan 



Antiguastrea cellulosa (Duncan) 



Agaricia anguillensis Vaughan 



Pironastraea anguillensis Vaughan 



Siderastrea conferta (Duncan) 



Cyalhomorpha anguillensis Vaughan 



roxboroughi Vaughan 



Goniopora panamensis Vaughan 



imperatoris Vaughan 



canalis Vaughan 



clevei Vaughan 



cascadensis Vaughan 



Porites anguillensis Vaughan , 



(Synaraea) macdonaldi Vaughan. 



Cu'ebra 

 forma- 

 tion. 



Empera- 

 dor lime- 

 stone. 



Antigua. 



Other localities. 



Cuba. 



P. R.; Cuba; etc. 



P. R. 

 P. R. 



P. R.= Porto Rico. 



Of the 17 species listed above, 4 are also found in the Culebra 

 formation, 9 in the Emperador limestone, and 12 of the 17 in the 

 combined Culebra and Emperador of the Canal Zone. In. addition 

 to the species here considered there are other species of Stylophora, 

 Stylocoenia, Antillia, Cladocora, Maeandra, Goniopora, and Porites. 

 There are 9 or 10 species of Goniopora. The total coral fauna in the 

 collections available to me comprises about 28 species. 



The Anguilla formation is correlated with the Emperador limestone 

 for the following reasons: Heterosteginoides, a new genus of orbitoidal 

 foraminifera described by Doctor Cushman, is represented in the 

 Anguilla formation by a species, also found in Antigua, but very 

 near a species that occurs in the Emperador limestone. Although 

 Heterosteginoides occurs in both Antigua and Anguilla, Lepidocyclina, 

 which is so abundant in Antigua, was not collected by me in Anguilla 

 and is only sparingly present in the Emperador limestone. The 

 identity of certain species of corals in the two formations has been 

 shown. Echinolampas semiorbis Guppy is abundant in Anguilla (on 

 the west side of Crocus Bay between 25 and 70 feet above sea level) 

 and in the base of the Emperador limestone, Canal Zone. Orthaulax 

 pugnax (Heilprin) was collected in the base of the Crocus Bay ex- 

 posures. 



CUBAN LOCALITIES. 



Orbicella imperatoris Vaughan has been collected at the following 

 localities in Cuba: Station 3450, 4 miles north of Pinar del Rio; 

 station 3451, one-half mile west of Cienaga railroad station, near 

 Habana; station 3566, Bejucal; station 7544, Rio Yateras, near 

 Guantanamo. That the Anguilla horizon is widely extended in 

 Cuba is shown by the distribution of the echinoids which will be 

 considered in another place. 



