N-0.2.] WHITE ON CARBONIFEROUS AND CRETACEOUS FOSSILS. 221 



forming an acnte angle with the axis. Character of the surface unknown, 

 the specimens being firmly imbedded in sandstone. One corallum seems 

 to have consisted of a central or basal mass, from which several stems 

 diverged irregularly, each stem bearing several branches. 



While this coral has all the outward api^earance and apparent general 

 structure of Chcctetes, the coraUites seem to be entirely destitute of 

 tabulce, even when viewed in the microscopic section prex)ared by Pro- 

 fessor Nicholson. If the tabulce are reaUy absent, as they apx)ear to be, 

 this coral cannot be properly referred to Chwtetes, nor to any other form 

 of the Actinozoa, and it probably belongs to the Polyzoa. If it belongs 

 to the latter class, I do not know any genus to which it can be referred ; 

 and as the specimens are not sutficiently perfect to warrant a new generic 

 diagnosis, I assign them provisionally to CJicetetes. 



Genus Beauiviontia Edwards & Haime. 



Beaumontia? solitaria (sp. nov.). 



Corallum massive, compact; corallites prismatic, readily cleaving from 

 each other, unequal in size and in the shape of the transverse section, 

 some of them being more than twice as large as others, and the 

 longer diameter of some being more than double the short diameter, the 

 average diameter being less than one millimeter ; their walls thin, ap- 

 parently marked only by the ordinary lines of growth; tabulie numer- 

 ous, plain, variously, but always slightly, flexed. 



This coral much resembles Favosites ; but no traces of mural pores have 

 been detected, not even in the microscopic section prepared by Professor 

 Mcholson. In consequence of this, and of the irregular or flexed char- 

 acter of the tabulae, I refer it to Beaumontia. Apparently the only known 

 fact that would throw doubt on the correctness of such a reference is 

 that Beaumontia has hitherto been known only in Paleozoic rocks. 



