TYPE SPECIMENS OF PALEOZOIC FOSSILS 23 



107 MP TYPE Hall & Clarke. New York state museum memoir 2. 



1898. pi. 33, fig. 4. 



Portage beds Varysburg N. Y. 



D. D. Luther, coll. 1897 

 Hydnoceras legatum Hall & Clarke 



108 &afiL TYPE: PLASTOTYPE Hydnoceras legatum Hall & 



Clarke. New York state museum memoir 2. 1898. 

 p. 69, pi. 33, fig. 5. 



Portage beds Naples N. Y. 



D. D. Luther, coll. 1897 



109 23gs- TYPE Hall & Clarke. New York state museum memoir 2. 



1898. pi. 33, fig. 6. 



Portage beds Varysburg N. Y. 



D. D. Luther, coll. 1897 

 Hydnoceras lutheri Hall & Clarke 



no 12& PLASTOTYPE Hydnoceras lutheri Hall & Clarke. 

 New York state museum memoir 2. 1898. p. 106, pi. 8, 

 fig. 10. 



Lower Chemung beds Segur's gully, Italy N. Y. 



D. D. Luther, coll. 1897 

 Hydnoceras multinodosum Hall & Clarke 



in _23fJ- TYPE : PLASTOTYPE Hydnoceras multinodosum 

 Hall & Clarke. New York state museum memoir 2. 

 1898. p. 106, pi. 39, fig. i. 



Chemung beds Cotton hill, near Avoca N. Y. 



Hydnoceras nodosum Hall 



112 3&. PLASTOTYPE Dictyophyton nodosum Hall. i6th 



annual report of the New York state cabinet of natural 

 history. 1863. p. 91, pi. 3, fig. 2. 



Hydnoceras n o d o s u m Hall & Clarke. New 

 York state museum memoir 2. 1898. pi. 2, fig. 2. 



Chemung beds Cattaraugus co. N. Y. 



Hydnoceras tuberosum Conrad 



113 2? 1 29 PLASTOTYPE Hydnoceras tuberosum Conrad. 



Journal of the Philadelphia academy of natural sciences. 

 1842. 8 : 267,pl.i6, fig. i. 



Dictyophyton tuberosum Hall. i6th annual 

 report of the New York state cabinet of natural history. 

 1863. pi. 3, fig. i. 



