10 Cincinnati Society of Natural History. 



as may be determined in the present silicified condition of the 

 fragment here described. They tend toward arrangement in 

 vertical rows, varying apparently from six to twelve in num- 

 ber; from three to four spines occupy a length of 1 mm. 

 Tabulae present, apparently from 1.2 to 1.7 mm. apart, where 

 preserved. 



Kokomo limestone at Kokomo, Indiana, in the upper part 

 of the exposures at the old George W. Defenbaugh quarry. 



This specimen appears to be closely related to Favosites 

 pyriforme. This relationship is shown by the spheroidal form, 

 small size of the corallites, and the presence of the septal 

 spines. In the Kokomo specimen, however, the spines appear 

 short, not bent upward at the tip, and the pores are so large 

 that it seems difficult to believe that they could have escaped 

 attention in the New York specimens if of equal size there. 

 Probably the Kokomo specimen should be regarded as a 

 variety of Favosites pyriforme. A fuller description of the 

 New York species is needed. 



Halysites catenularia, Linnccus. 



Specimens with corallites 2 mm. wide along their greater 

 diameter; the tubules between the corallites are crossed by 

 numerous closely set and strongly arched tabulae. Found in 

 the West Union bed at the Clarksburg chapel or Church of 

 Christ, three miles south of Vanceburg, on the road to Valley, 

 in Lewis county, Kentucky. 



Halysites nexus, W. J. Davis. 



A variety with four coraUites in a width of 15 mm. occurs 

 in the upper part of the George W. Defenbaugh quarry, south- 

 east of Kokomo, Indiana. It appears to be identical with the 

 form figured by W. J. Davis, on plate 67 of Kentucky Fossil 

 Corals as Halysites nexus. 



CORNULITES CLINTONI, Hall. 



A small fragment of this species was found in the West 

 Union bed, at the spring one mile south of Glen Springs, on 

 Big Salt Lick creek, in Lewis county, Kentucky. 



10 



