206 BULLETIN" 103, UNITED STATES NATIONAL MUSEUM. 



Of the 13 species and varieties listed above, 9 are common to 

 Antigua, and Goniopora decaturensis occurs in Cuba in association 

 with species of corals abundant in Antigua; of the 3 remaining 

 species, StylopJiora minutissima has so far been positively identified 

 only at Bainbridge, but it is very near a species common in Antigua; 

 2 of the 13 forms are known from the "silex" bed of Tampa. The 

 coral fauna near Bainbridge is a moderately rich one. In addition 

 to those listed there are species of StylopJiora, Astrocoenia, Antilliaf, 

 Astrangia or RJiizangia, Mesomorplia, Astreopora, Actinacis, Gonio- 

 pora, and Alveopora, and of a few genera not yet positively identified. 

 There are between 25 and 30 species, of which only 4 or 5 are com- 

 mon to the Tampa coral fauna. 



It should be stated here that casts of a species of Pecten, which 

 appears to P. suwaneensis Dall, occur at station 3381 in the matrix 

 with Diploastrea crassolamellata, which may therefore be of upper 

 Eocene as well as of Oligocene age, or I may not have discriminated 

 closely enough between species. 



"CORAL LIMESTONE" OF SALT MOUNTAIN, ALABAMA. 1 



I described in the monograph referred to in the footnote two 

 species, as follows: 



StylopJiora ponderosa Vaughan, Antigua. 



Actinacis alabamiensis (Vaughan), Antigua; Flint River, Georgia. 



I long surmised that the "coral limestone" of Salt Mountain 

 really represented the basal part of the Chattahoochee formation, 

 but only recently did I obtain evidence that this limestone is the 

 stratigraphic correlative of the Antigua formation and of the coral 

 reef horizon near Bainbridge. 



SAN KAFAEL FORMATION OF EASTERN MEXICO. 2 



The formation from which the fossil corals were obtained was 

 first designated by Mr. Durable "San Fernando beds," a name long 

 in use for a Tertiary formation in the Island of Trinidad. He has 

 recently changed the name to San Rafael. It is an important forma- 

 tion in eastern Tamaulipas, Mexico. Several of the corals are not 

 well enough preserved for purposes of identification. The following 

 is a list: 



Antiguastrea cellulosa (Duncan), Antigua, etc. 



var. silecensis Vaughan, Antigua, etc. 



Favites mexicana Vaughan. 



Maeandra dumolei Vaughan. 



1 For a description of the geologic relations, see Vaughan, T. W., Eocene and lower Oligocene coral 

 faunas of the United States, U. S. Geological Survey Mon. 39, pp. 30, 31, 1900. 



2 The principal literature is as follows: 



Dumble, E. T., Some events in the Eocene history of the present Coastal area of the Gulf of Mexico in 

 Texas and Mexico, Journ. Geol., vol. 23, pp. 481-498, 1915 (see especially pp. 495-497); Tertiary deposits 

 of northeastern Mexico, California Acad. Sci. Proc, ser. 4, vol. 5, pp. 163-193, pis. 16-19, 1915 (see espe- 

 cially pp. 189-192). 



