TYPE SPECIMENS OF PALEOZOIC FOSSILS 505 



3104 type Hall. Paleontology of New York. 1883. v. 5, 



pt 1, plates and explanations, pi. 22, fig. 26. 



Hall. Paleontology of New York. 1884. v. 5, pt 1, 

 pi. 22, fig 26. 



Chemung beds Randolph, Cattaraugus co. N. Y. 



C. Van Deloo, coll. 1863 



3105 type Hall. Paleontology of New York. 1883. v. 5, 



pt 1, plates and explanations, pi. 22, fig. 27. 



Hall. Paleontology of New York. 1884. v. 5, pt 1, 

 pi. 22, fig. 27. 



Upper Chemung (?) beds Olean, Cattaraugus co. N. Y. 



C. Van Deloo, coll. 1863 

 Pteronites subdecussata see Actinopteria sub- 

 decussata 



PTYCHOPTERIA Hall 



Ptychopteria alata Hall 



3106 9 y type'? Ptychopteria alata? Hall. Paleontology of 



New York. 1883. v. 5, pt 1, plates and explanations, 

 pi. 23, fig. 21. 



? Hall. Paleontology of New York. 1884. v. 5, pt 1, 

 pi. 23, fig. 21. 



Chemung (?) beds Salamanca N. Y. 



R. P. Whitfield, coll. 1869 



3107 S - S ^ LS type? ? Hall. Paleontology of New York. 1883. v. 5, 



pt 1, plates and explanations, pi. 23, fig. 22. 



? Hall. Paleontology of New York. 1884. v. 5, 

 pt 1, pi. 23, fig. 22. 



Chemung (?) beds Salamanca N. Y. 



R. P. Whitfield, coll. 1869 



3108 98 3 °° type Ptychopteria alata Hall. Paleontology of 



New York. 1883. v. 5, pt 1, plates and explanations, 

 pi. 23, fig. 25. 



Hall. Paleontology of New York. 1884. v. 5, pt 1 , 

 pi. 23, fig. 25. 



Chemung (?) beds Salamanca N. Y. 



R. P. Whitfield, coll. 1869 



3109 type Hall. Paleontology of New York. 1883. v. 5, 



pt 1, plates and explanations, pi. 23, fig. 26. 



Hall. Paleontology of New York. 1884. v. 5, pt 1, 

 pi. 23, fig. 26. 



Chemung (?) beds Salamanca N. Y. 



R. P. Whitfield, coll. 1869 



