r 



NO. 1442. JAMES TYPES OF BRYO'/OA—BASSLER. 25 



CALLOPORELLA CIRCULARIS (James). 



Monticulipora {Heterotrypa) circularis J ame^, Paleontologist, No. 6, 1882, p. 4(). 

 ■ Monticulipora circularis James, Paleontologist, No. 7, 1883, p. 58, pi. i, tig.s. :5, ?i<i. 

 Monticulipora lens James and James, Jour. Cincinnati Soc. Nat. Hist., X, ISSS, 



p. 165.— J. F. James, Jour. Cincinnati Soc. Nat. Hist., XVI, 1894, i>. 181. 



(Not Nebulipom lem McCoy.) 

 CaUoporeUa harrisi Ulrich, Jour. Cincinnati Soc. Nat. Hist., VI, 1883, i>. 91, 



pi. I, fig8. 5-5c. 

 CalloporeUu circuhirix Nickles and Basslek, Bull. U. S. Geol. Surv., No. 17.3, 



1900, p. 193. 



James''s original description of this form is clear enough to make 

 one reasonably certain that his species is the same as that described 

 and figured shortly after by Ulrich as CaUoporeUa liarrim and an 

 examination of the type specimens of each proves this beyond a doubt. 

 The absence of tigiiresin the case of J/, circular is'va not a valid excuse 

 for rejecting the name, inasmuch as the description gives a clear state- 

 ment of both the internal and external characters. James and James 

 in 1888 and J. F. James again in 1894 recognize M. circularis as a 

 synonj'ui of McCoy's NebuUpora lens — a species from Great Britain 

 which has a similar zoarial growth, but whose zooecial characters are 

 not yet known. The possibility of the two forms proving to repre- 

 sent the same species is, in the opinion of the writer, xevy remote. 



Ulrich has given a good description and figures of the species and 

 the student is referred to his work. The discoid zoarium, with rounded 

 zooecia surrounded by ring-like walls and separated by numerous 

 closel}^ tabulated mesopores, characterize the species. 



Occurrence. — Not uncommon in the Waynesville formation of the 

 Richmond. The type locality is Westboro, Ohio, but the species has 

 been found at many other places in southwestern Ohio and southeastern 

 Indiana. 



CERAMOPORA CONCENTRICA James. 



Ceramopora concentrica 3 XMES, Paleontologist, No. 1, 1878, \). 5. 



Ceramopora concentrica James and James, Jour. Cincinnati Soc. Nat. Hist., XI, 



1888, p. 38, pi. I, figs. 8, 8 a. 

 Not Cceloclenia concentricum Nickles and Bassler, Bull. U. S. Geol. Surv. No. 



173, 1900, }). 212 {^Coeloclenia {Diamcsopora) commune (Ulrich)). 



The original description of this form is too vague for recognition, 

 and the species must date from 1883, when James and James gave 

 another description and figured a specimen. The type lot, from which 

 the original description was apparently drawn, consists of the following: 



(1) Three specimens of CerainoporeUa distincta Ulrich from the Eden 

 shale at Cincinnati or vicinit}'. 



(2) Two specimens of CeramoporeUa ohiooisis {W\cho\^on) from the 

 upper beds of the Eden shale at Cincinnati. 



