156 EOCENE AND LOWER OLIGOCENE COKAL FAUNAS. 



were counted. The septal grouping- rather definite; the members of the 

 third cycle curve toward those of the second, those of the fourth toward 

 those of the third, and those of the fifth curve toward those of the fourth. 

 There are four complete cycles and a considerable number of the members 

 of the fifth. The margin of the outer half of each septum lies in an almost 

 horizontal plane; the inner half of the margin falls in a curve to the bottom 

 of the calicular fossa. The result of these characters of the septal margins 

 is to cause a wide almost flat area between the calicular fossa-. The mar- 

 gins have a beaded appearance on the perfect septa. The septal faces are 

 granulated. Synapticuht are well developed and numerous; there are 

 several (two or three) rather definite rows near the wall, and often other 

 synapticula; without definite arrangement. There may be some dissepi- 

 ments, but f)f that I can not be sure ; nearly all of the endotheca is certainly 

 synapticular. The calicular fossa? are shallow circular depressions in the 

 middle of the calices. Columella poorly developed, false, with a papillate 

 upper ternnufition. 



Locality. — Prairic Creek, Alabama. 



Geologic occurrence. MidwaV bcds. 



Type. — United States National Museum. 



This species is represented in the United States National ^luseum 

 by only one specimen, which, fortunately, is well preserved. As all the 

 detail necessary for generic and specific determination could be made out 

 without a thin section, none was cut. 



Genus STEPHANOMORPHA gen. uov. 



As the succeeding description of the species on which this genus is 

 based is somewhat detailed, only those characters usually considered of 

 generic importance will be pointed out here. 



Corallum in small rounded masses; corallites subhexagonal ; calices 

 usually circular, with slightly elevated rims. Between the calices a distinct, 

 rather wide, somewhat depressed costate area. The costse pass directly from 

 one calice to the next, alternate with each other, or meet at an angle. Synap- 

 ticuloe in definite vertical series at periphery of corallite cavity, and where 

 the costse of neighboring corallites meet; they are more or less irregularly 

 distributed in the other ])arts of the intercostal spaces and between the septa. 

 Septa not numerous, tlu'ee cycles in type species, solid, composed of trabec- 



