30 POLYZOANS. 



Polypora tuberculata PROUT. 



Polypora tuberculata Prout, 1859: Trans. St. Louis Acad. Sci., vol. I, p. 

 449, pi. xviii,fig. 8. 



Horizon and localities. Lower Carboniferous, Kaskaskia 

 limestone : Chester ( Illinois ). 



Polypora corticosa ULRICH. 



Polypora corticosaUlTich, 1890: Geol. Sur. Illinois, vol. VIII, p. 596, pi. 

 lx,figs. 5-5c. 



Horizon and localities. Lower Carboniferous, Kaskaskia 

 limestone : Chester ( Illinois ). 



Polypora spinulifera ULRICH. 



Polypora spinulifera Ulrich, 1890: Geol. Sur. Illinois, vol. VIII, p. 598, 

 pi. Ixi, figs. 2-2a. 



Horizon and localities. Lower Carboniferous, Kaskas- 

 kia limestone : Chester ( Illinois). 



Polypora submarginata MEEK. 



Polypora marginata Geinitz, 1866: Garb, und Dyas in Nebraska, p. 69, 



tab. v, figs, lla-b. (Not McCoy, 1844.) 

 Polypora submarginata Meek, 1872: U. S. Geol. Sur. Nebraska, p. 154, pi. 



vii, figs. 7a-b. 

 Polypora submarginata Ulrich, 1890 : Geol. Sur. Illinois, vol. VIII, p. 



602, pi. Ixi, figs. 6-6b. 



Horizon and localities- Upper Carboniferous, Upper 

 Coal Measures : Kansas City. Probably Bed Oak ( Iowa ) and 

 Nebraska City ( Nebraska ). 



Fenestralia? sancti-ludovici PROUT. 



Fenestralia sancti-ludovici Prout, 1859 : Trans. St. Louis Acad. Sci., vol. I, 



p. 235, pi. xv, figs..l-la. 

 Fenestralia sancti-ludovici U Irich , 1890: Geol. Sur. Illinois, vol. VIII, p. 



604, pi. Iv, fig. 5. 



Horizon and localities. Lower Carboniferous, Saint Louis 

 limestone: St. Louis. 



