I56 NEW YORK STATE MUSEUM 



Ptilodictya scutulata Hall 



892 67 1 65 type Stictopora? scutulata Hall. Transactions- 



of the Albany institute. 1881. 10:191 (not figured). 



Hall. 3d annual report of the New York state geolo- 

 gist. 1884. p. 47 (not figured). 



Ptilodictya scutulata Hall & Simpson. Pale- 

 ontology of New York. 1887. 6:272 (not figured). 

 Hamilton beds Moscow N. Y. 



C. Van Deloo, coll. 1865. 

 Ptilodictya tenuis Hall 



893 67 x 66 type Escharapora tenuis Hall. 26th annual re- 



port of the New York state museum of natural history. 

 1874. p. 99. 



Hall. 2d annual report of the New York state geolo- 

 gist. 1883. pi. 17, fig. 7, 8. 



Ptilodictya tenuis Hall & Simpson. Paleon- 

 tology of New York. 1887. v. 6, pi. 17, fig. 7, 8. 



894 -- 2 — type Hall. 2d annual report of the New York state 



geologist. 1883. pi. 17, fig. 11. 



Hall & Simpson. Paleontology of New York. 1887.. 

 v. 6, pi. 17, fig. 11. 



New Scotland beds Near Clarksville N. Y. 



C. D. Walcott and C. Van Deloo, coll. 1877 



ptilopora McCoy 



Ptilopora nodosa Hall 



895 —f 7 -- type Ptilopora nodosa Hall. Transactions of 



the Albany institute. 1881. 10 : 196. 



Hall & Simpson. Paleontology of New York. 1887. 

 v. 6, pi. 66, fig. 25. 



Hamilton beds Alden N. Y. 



C. Van Deloo, coll. 1874 

 Ptilopora striata Hall 



896 e -iix type Ptilopora striata Hall. Transactions of the 



Albany institute. 1881. 10:196. 



Hall & Simpson. Paleontology of New York. 1887.. 

 v. 6, pi. 66, fig. 30-32. 



Hamilton beds Moscow N. Y. 



807 — 2 — type Hall & Simpson. Paleontology of New York. 

 1887. v. 6, pi. 66, fig. S3- 



Hamilton beds West Williams Ont- 



J. De Cew, coll. 1865 



