CARBONIFEROUS SPECIES. 57 



Genus CAMPOPHYLLUM, E. & H. 



CAMroPHYLLUM (undt. sp.)- 



Plate 5, figs. 2, 2 a, 2 &, 



Corallum cylindrical, more or less elongated, nearly straight or some- 

 what curved, with ridges or irregularities of growth. Calice unknown; 

 septa about eighty, very thin, every alternate one extending in about half- 

 way to the middle, while the intermediate ones are much shorter ; outer 

 vesicular zone narrow, or only extending in about half as far as the longer 

 costse, occupied by numerous vesicles, which, as seen in vertical sections, 

 range obliquely outward and upward ; tabulae thin, occupying a very wide 

 space, passing horizontally across, but curving a little downward at their 

 outer margins, and sometimes dividing and intersecting each other as they 

 pass across. Epitheca thin, and, at least in weathered examples, marked 

 by distinct septal costse. 



Length unknown; diameter, 1.60 inches. 



The only specimen of this species I have seen is a fragment about five 

 inches in length, and imperfect at both ends. It is much weathered, the 

 epitheca being entirely removed, excepting on a few spots, and the calice 

 broken away. I am somewhat inclined to believe that it may be the same 

 species figured by Dr. Owen, from the Upper Coal-Measures on the Mis- 

 souri River, under the name Cyathopliyllmn vermiculare, Goldfuss? (see plate 

 iv, fig. 2, of his report of his Geological Survey of Iowa, Wisconsin, and 

 Minnesota). The specimen is straighter than the Missouri River form usu- 

 ally is, and seems not to have had such strong wrinkles of growth ; but it 

 is so much weathered that the wrinkles might have been obliterated in that 

 way. As nearly as can be determined by broken sections, both longitud- 

 inal and transverse, it seems to agree quite closely, in its internal structure, 

 with specimens of the form figured by Dr. Owen, now before me from the 

 original locality. In making the comparison, however, it should be under- 

 stood that Dr. Owen's figures give no idea of the true appearance and 

 number of the septa, or of the costse. 



The coral figured by Dr. Owen is a true Campophyllum, and, as he pro- 

 posed to call it Cyatliopliyllum torquium in case it should be found to be dis- 

 tinct from Goldfuss' species, its name becomes Campophyllum torquium. 



