'79 2 N£ W YORK STATE MUSEUM 



501 1 8 ° 9 41 type Ruedemann. New York state museum bulletin 49. 



1901. pi. 1, fig. 20. 



Trenton conglomerate Rysedorph hill, N. Y. 



R. Ruedemann, coll. 1900 



Plectambonites sericeus Sowerby (sp.) var. asper James 



5012 sa^.3. hypotype Leptaena aspera James. Cincinnati 



quarterly journal of science. 1874. 1:151. 



Plectambonites sericeus Sowerby var. asper 

 Ruedemann. New York state museum bulletin 49. 1901. 

 p. 18, pi. 1, fig. 6. 



Trenton conglomerate Rysedorph hill, 



Rensselaer co. N. Y. 

 R. Ruedemann, coll. 1900 



5013 &£ 2 ~ hypotype Ruedemann. New York state museum bulletin 



49. 1901. pi. 1, fig. 7. 



Trenton conglomerate Rysedorph hill, N. Y. 



R. Ruedemann, coll. 1900 



rafinesquina Hall & Clarke 

 Rafinesquina alternata Conrad (sp.) 



5014 ^V^ hypotype Ruedemann. New York state museum bulletin 



49. 1901. pi. 2, fig. 1. 



Trenton conglomerate Rysedorph hill, N. Y. 



R. Ruedemann, coll. 1900 



RHYNCHOTRETA Hall 



Rhynchotreta cuneata Dalman (sp.) var. americana Hall 



5015 g2 8 20 hypotype Rynchotreta cuneata var. americana 



Clarke & Ruedemann. New York state museum memoir 5. 



1902. pi. 4, fig. 23-25. 



Upper Shelby dolomite Oak Orchard creek, 2 miles 



south of Shelby, Orleans co. N. Y. 

 R. Ruedemann and D. D. Luther coll. 1902 



siphonotreta de Verneuil 

 Siphonotreta minnesotensis Hall & Clarke 



5016 8 3^5 hypotype Siphonotreta minnesotensis Hall & 



Clarke. Paleontology of New York. 1892. v. 8, pti, 

 p. 177. 



