PLATE VIII—Continued 
Phacops BUFO. 
Page 26. 
25. Dorsal view of a plaster cast of Dr. Green’s type specimen. 
26. Profile view of the same. 
Hamilton group. 
The original is said to have come from a dark-grayish limestone in New Jersey. 
Phacops nupera. 
Page 27. 
27. The type specimen, showing the cejihalon and thorax. 
Chemung group. Chemung Creek, Chenmng county. 
