Septameroceras (?) sp. 



Page Si 



i Single specimen observed. 



Silurian: Pittsford shale, Pittsford, N. Y. 



Hexameroceras microstoma nov. 

 Page 79 



2 Dorsal view of largest specimen observed. Paratype. Natural 



size. 



3 Septum with siphuncle. Paratype. Natural size. 



4 Well-preserved specimen. Paratype. Natural size. 



5, 6 Lateral and dorsal views of another specimen. Paratype. 



Natural size. 

 7, 8, 9 Ventral, lateral and apertural views' of type specimen. 



Holotype. Natural size.. 

 Silurian: Lockport (Guelph) limestone. Niagara Falls. 



Gomphoceras osculum nov. 

 Page 76 



10 Group of three type specimens. (Syntypes). Natural size. 



11 Section of specimen. Natural size. 



Silurian : Cobleskill limestone, Morganville, N. Y. 

 The originals are in the New York State Museum. 



