DISTRIBUTION OF SPECIES. 19 



I describe in this paper two corals — Far'ia merriami and Stephanocwnia 

 fairhanksl — both new species, that are doubtfully Cretaceous, and the strati- 

 graphic position of Grabb's "AsCrocosnia " petrosa is not yet known. 



STRATIGRAPHIC AND GEOGRAPHIC DISTRIBUTION OF SPECIES. 



All doubtful species are omitted from the following table, only those 

 that I recognize as valid appearing in it. 



The corals, according to geographic distribution, may be divided into 

 several provinces. 



(1) An eastern province, which may be subdivided into (a). Gulf 

 subprovince, extending as far as South Carolhia on the Atlantic slope; 

 (b), Virginia, in which State two species common to the Alabama region 

 are found; (c). New Jersey, in which State one species doubtfully common 

 to the Gulf subpro\'iuce occurs. 



(2) A western, or the Californian province. No species common to the 

 eastern and western provinces are known, although some of the species of 

 one have analogues in the other. 



As the greater number of the species occur in the Gulf region, the 

 typical Gulf States section is used to illustrate the stratigraphic occurrence. 

 When the bed from which a species comes can not be correlated with 

 that section, a note of its stratigraphic distribution is given in the column, 

 "Geographic distribution and remarks." 



