1 86 NEW YORK STATE MUSEUM 



Fenestella (Unitrypa) nervia var. con- 

 stricta Hall & Simpson. Paleontology of New York. 

 1887. v. 6, pi. 22, fig. 11. 



New Scotland beds Near Clarksville N. Y. 



1059 type Hall. 2d annual report of the New York state 



geologist. 1883. pi. 22, fig. 12. 



Hall & Simpson. Paleontology of New York. 1887. 

 v. 6, pi. 22, fig. 12. 



New Scotland beds. Near Clarksville N. Y. 



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



On blab with type of Polypora p a x i 1 1 a t a , Pal. N. Y. 

 v. 6, pi. 18, fig. 10, 11. 



Unitrypa praecursor Hall 



1060 &aia. type Fenestella praecursor Hall. 26th annual 



report of the New York state museum of natural history. 

 1874. p. 94. 



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

 gist. 1883. pi. 21, fig. 15, 18. 



Fenestella (Unitrypa) praecursor Hall & 

 Simpson. Paleontology of New York. 1887, v. 6, 

 pi. 2i, fig. 15, 18. 



New Scotland beds Near Clarksville N. Y. 



L. E. Brown and C. Van Deloo, coll. 1876 



On slab with type of Polypora obliqua , Pal. N. Y. v. 6, 

 pi. 18, fig 8, 9. 



1 06 1 type Hall. 2d annual report of the New York state 



geologist. 1883. pi. 21, fig. 16, 



Hall & Simpson. Paleontology of New York. 1887. 

 v. 6, pi. 21, fig. 16. 



New Scotland beds Near Clarksville N. Y. 



L. E. Brown and C. Van Deloo, coll. 1876 



Unitrypa scalaris Hall 



1062 SJ^Li type Fenestella scalaris Hall. 36th annual re- 



port of the New York state museum of natural history. 

 1884. p. 66. 



Fenestella (Unitrypa) scalaris Hall. 7th 

 annual report of the New York state geologist. 1888. 

 pi. 11, fig. 1. 



Hamilton beds Bellona N. Y. 



