16< 



Gten. 



Ctenoptychius 



A fish found in the Crinoidal (Black 

 Foss.) limestone 250' below Pittsburgh coal, in Stevenson's W. 

 Va. sect. Trans. A. P. S. Phil. XV. part. 2. (L,36)— XK 

 CuGidlea ojnma. See Nucula lirata. VIII c. 

 Cuneamya, spec. No. 9576, in RandalFs collection at War- 

 ren, Pa., in Division J. flaggy sandstone, 150' to 200' below Sub- 

 olean conglomerate (000). — VIII-IX, 



Cyathaxoni'i distorta. Compare with Lophophyllum pro- 

 lifer um. XIII, 



Cyathaxonia herzeri. (Hall, 35 An. Rt. N. Y. Mus. 1882.) 

 Y -^^^^j^^^^^^ // IBQZ Oollett's Indiana Rt. 1882, 



page 275, plate 15, fig. 14, 

 back view and cup. — Ni- 

 agara limestone, at Louis- 

 ville, Ky. Vh, — The figure 

 shows the conical colum- 

 ella at the bottom of the 



cup; and 100 lamellae. 

 Cyathaxonia prolifera. See Lophophyllum prol. XIII. 

 Cyatheites miitus. See Pecopteris unitus. XII I. 



Cyathocrinus Hall, Geol. Fourth Dist. N. Y., 



1843, plate fig. [21, 4,4a, 

 5, 5a, 5b.] Niagara form- 

 ation. (Figs. 21, 5, 5a. 

 5b show the 

 cup without 

 arms. Fie:. 

 *o 21, 4 shows 

 f^i the arms at- 

 'X tached, b u t 

 a broken condition. 

 21, 4a shows the an- 

 atomy of the cup, or the 

 arrangements of the plates 

 which make the cup.) — 

 Vl. 



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