22 NEW YORK STATE MUSEUM 



Hydnoceras barroisi Hall& Clarke. New York: 

 state museum memoir 2. 1898. p. 147, pi. 46, fig. 3, 4. 

 Psammites du Condroz Jeumont, Brittany- 



(upper Devonic) 



Hydnoceras bathense Hall & Clarke 



99 is.S-1. TYPE Hydnoceras bathense Hall Clarke. 

 New York state museum memoir 2. 1898. p. 101, pi. 3, 



fig. 3- 



Chemung beds Jenks quarry, Bath N. Y. 



100 **^ TYPE: PLASTOTYPE Hall & Clarke. New York state 



museum memoir 2. 1898. pi. 8, fig. 4. 



Chemung beds Jenks quarry, Bath N. Y. 



C. Van Deloo, coll. 1886 



101 23 3 21 PLASTOTYPE Hall & Clarke. New York state museum 



memoir 2. 1898. pi. 9, fig. i. 



Chemung beds Jenks quarry, Bath N. Y. 



Hydnoceras botroedema Hall & Clarke 



102 ^j 2 - 2 - TYPE Hydnoceras botroedema Hall & Clarke. 



New York state museum memoir 2. 1898. p. 102, pi. 2 



fig- 4. 



Chemung beds Irish hill, near Bath N.Y. 



Hydnoceras eutheles Hall & Clarke 



103 23 ! 2? TYPE Hydnoceras eutheles Hall & Clarke. 



New York state museum memoir 2. 1898. p. 105, pi. 8, 



fig- 5- 



Chemung beds Cotton hill, near Avoca N. Y. 



104 2323 TYPE : PLASTOTYPE Hall & Clarke. New York state 



museum memoir 2. 1898. pi. 8, fig, 6. 



Chemung beds Cotton hill, near Avoca N. Y. 



10 5 2 - 3 - 3 5 ^- TYPE Hall & Clarke. New York state museum memoir 2. 



1898. pi. 33, fig. 7. 



Portage beds Varysburg N. Y. 



D. D. Luther, coll. 1897 

 Hydnoceras gracile Hall & Clarke 



106 2^f- TYPE Hydnoceras gracile Hall & Clarke. New 



York state museum memoir 2. 1898. p. 70, pi. 33, fig. 3. 

 Portage beds Varysburg N. Y. 



D. D. Luther, coll. 1897 



