﻿334 BULLETIN 103, UNITED STATES NATIONAL MUSEUM. 



StylopJiora conferta Reuss. 

 tuberosa Reuss. 



qfjinis Duncan (described from Santo Domingo). 

 granulata Duncan (described from Bowden, Ja- 

 maica). 

 From Santo Domingo : 



StylopJiora affinis Duncan. 



var. minor Duncan (a valid species). 

 raristella (Def ranee). 

 From Bowden, Jamaica: 



Stijlophora granulata Duncan. 

 From St. Croix, Trinidad : 



StylopJiora minuta Duncan. 



raristella (Def ranee). 



mirabilis Duncan (not Duchassaing and Michelotti). 



I described in 1900 ^ StylopJiora ponderosa from the Oligocene of 



Salt Mountain, near Jackson, Alabama, and StylopJiora minutissima 



from the Oligocene of Blue or Russell Spring, near Bainbridge, 



Georgia, 



I recognize as valid the six species described as new by Duncan and 

 the two later described by myself. Duncan's identifications of West 

 Indian specimens with European species are all discarded as they are 

 probably erroneous. 



In addition to the six species here described as new, I have de- 

 scribed six other species in manuscript not yet published, making a 

 total of at least 20 species of StyloptJiora known to me from the 

 American Tertiary formations. The stratigraphic range of the genus 

 in America is from the upper Eocene to Miocene. 



STYLOPHORA IMPERATORIS, new species. 



Plate 74, figs. 1, la, 2, 3, 4, 4a, 5. 



CoraUum attaining a rather large size, the basal part of some 

 colonies as thick as a man's wrist. The cross-section of branches 

 ranges in form from subeUiptical to curved lamellate. The following 

 are the diameters of the broken ends of the specimen, Avhich is 62.5 

 mm. long, represented by plate 74, figure 1. 



Diineters in millimeter s of branches of Stylophora itnperatoris. 



> U. S. Geol. Survey Mon. 39, p. 132, 1900. 



