32 NEW YORK STATE MUSEUM 



Prismodictya telum Hall (sp.) 



172 -^ PLASTOTYPE Dictyophton telum Hall. 35th 



annual report of the New York state museum of natural 

 history. 1884. p. 470. 



Prismodictya t e 1 u m Hall & Clarke. New York 

 state museum memoir 2. pi. 17, fig. 3. 



Chemung beds Wellsville N. Y. 



Protocyathus r SLTUS see Archaeocyathellus rarus. 



RHABDOSISPONGIA Hall & Clarke 

 Rhabdosispongia amalthea Hall (sp.) 



1 73 ^r^- PLASTOTYPE Dictyophyton amalthea Hall. 



9th annual report of the New York state geologist. 1890. 

 p. 58. 



Rhabdosispongia amalthea Hall & Clarke. 

 New York state museum memoir 2. 1898. pi. 1 6, fig. i. 



Chemung beds Great Bend Pa. 



SPHAERODICTYA Hall & Clarke 

 Sphaerodictya subsphaerica Walcott (sp,) 



1 74 24^2. HYPOTYPE Cyathophycus subsphaericus Wal- 



cott. Transactions of the Albany institute. 1879. 10:19. 



Sphaerodictya subsphaerica Hall & Clarke. 



New York state museum memoir 2. 1898. pi. i, fig. 16, 17. 



Utica slate Holland Patent N. Y. 



W. P. Rust purchase. 1890 



*75 ^iP HYPOTYPE Hall & Clarke. New York state museum 

 memoir 2. 1898. pi. i, fig. 18, 22. 



Utica slate Holland Patent N. Y. 



W. P. Rust purchase. 1890 



176 ** HYPOTYPE Hall & Clarke. New York state museum 

 memoir 2. 1898. pi. i,fig. 19. 



Utica slate Holland Patent N. Y. 



W. P. Rust purchase. 1890 



*77 ^-~ HYPOTYPE Hall & Clarke. New York state museum 

 memoir 2. 1898. pi. i, fig. 20. 



Utica slate Holland Patent N. Y. 



W. P. Rust purchase. 1890 



178 ^p HPYOTYPE Hall & Clarke. New York state museum 

 memoir 2. 1898. pi. i,fig. 21. 

 Utica slate Holland Patent N. Y, 



