TYPE SPECIMENS OF PALEOZOIC FOSSILS 717 



isochilina Jones 

 Isochilina armata Walcott var. pygmaea Ruedemann 

 4502 13 f 20 type Isochilina armata Walcott var. pygmaea 

 Ruedemann. New York state museum bulletin 49. 1901. 

 p. 72, pi. 7, fig. 19. 



Trenton conglomerate Rysedorph hill, 



Rensselaer co. N. Y. 

 R. Ruedemann, coll. 1900 



45°3 — f- 2 -^ type Ruedemann. New York state museum bulletin 49. 

 1901. pi. 7, fig. 20. 

 Trenton conglomerate Rysedorph hill, N. Y. 



R. Ruedemann, coll. 1900 



4504 * 3 % 2 ° type Ruedemann. New York state museum bulletin 49. 



1901. pi. 7, fig. ai. 



Trenton conglomerate Rysedorph hill, N. Y. 



R. Ruedemann, coll. 1900 



4505 A^-f- 2 -^ type Ruedemann. New York state museum bulletin 49. 



1901. pi. 7, fig. 22. 

 Trenton conglomerate Rysedorph hill, N. Y. 



R. Ruedemann, coll. 1900 



4506 i^-g- 2 -^ type Ruedemann. New York state museum bulletin 49. 



1901. pi. 7, fig. 23. 



Trenton conglomerate Rysedorph hill, N. Y. 



R. Ruedemann, coll. 1900 



45°7 — f- a type Ruedemann. New York state museum bulletin 49. 

 1901. pi. 7, fig. 24. 

 Trenton conglomerate Rysedorph hill, N. Y. 



R. Ruedemann, coll. 1900 



4508 JJMpA type Ruedemann. New York state museum bulletin 49. 



1901. pi. 7, fig. 25. 

 Trenton conglomerate Rysedorph hill, N. Y. 



R. Ruedemann, coll. 1900 



isotelus De Kay 



Isotelus canalis Conrad 



4509 lifAfl type Isotelus canalis (Conrad in ms.) Hall. 



Paleontology of New York. 1847. 1:25, pi. 4 bis, fig. 17. 

 Chazy limestone Chazy, Clinton co. N. Y. 



