On the Monticuliporoid Corals of the Cincinnati Group. 45 



The genus Cratcripora was first described by Mr. Ulrich 

 in the Journal of the Cincinnati Society of Natural History, Vol. 

 II, p. 29, April, 1879, ^^'^^ t^^'*^ species and a variety were there 

 characterized. There were C. lineata, and var. expansa, and C. 

 frccta. The first of these had been described a few months before 

 (January, 1879), ^7 o"^ ^^ ^^'^ ^^ Sagenella striata. (The Palae- 

 ontologist, p. 22). The author of the genus abandoned it at a 

 later period, 1882, stating (J. C. S. N. H. V, 151.) that the forms 

 "are now known to be attached bases of the Ptilodictyonidx. The 

 form described as C. lineata, and var. expansa belong to species 

 of Ptilodictya. The bases of Arthropora were called C. erecta.'' 



These facts are mentioned here so that future students may 

 know how Crateripora is now regarded. 



The following species of the group of Monticulporoids are 

 either too ill defined or too obscure to find a place in the body of 

 the paper. 



Homotrypa obliqua. Ul. Jour. Cin. Soc. N. Hist. V, 343. 



Petigopora gregaria, Ul. Ibid, VI, 155, 



The one following has been described as a Ceramopora, but it 

 is apparently a polyzoan, so it is omitted. We refer to C. radiata, 

 U. P. James. The Palteont, p. 12, 187S. 



