464 



NEW YORK STATE MUSEUM 



Billingsella festinata Bill., 



Swanton Vt. 

 Scenella retusa Ford, Troy 

 Stenotheca rugosa Hall, Troy 

 Stenotheca rugosa Hall, Lan- 

 singburg 

 Hyolithus (sp.), Troy 

 H. americanus Bill., Troy 

 H. communis var. e m m o n s i 



Ford, Troy 

 H. i m p a r Ford, Troy 

 H. micans Bill., Troy 

 Fordilla troyensis Barr., Troy 

 Aristozoe troyensis Ford, 



Troy 

 Bathyurus senectus Bill., Bic 



harbor Can. 

 Microdiscus speciosus Ford, 



Troy 

 Microdiscus speciosus Ford, 



Lansingburg 

 M. m e e k i Ford, Troy 

 M. 1 o b a t u s Hall, Troy 

 M. punctatus ? Salter, St John 



N. B. 

 M. (sp.), Bic Harbor Can. 

 Olenellus asaphoides Em., 



Troy 

 O. asaphoides Em., Bald moun- 

 tain 

 O. asaphoides Em., Lansingburg 

 O. vermontana Hall, Parker's 



farm, Vt. 

 O. thompsoni Hall, L'Anse-au- 



Loup Can. 

 Ptychoparia teucer Bill., J 



mile east of Swanton Vt. 



1 (1 type) 



9 



1 



1 



29 



14 (2 types) 



15 (3 types) 

 38 



5 (5 hypotypes) 



1 (1 type) 



60 (3 types) 



1 



1 (1 type) 



7 



1 



2 



80 (12 hypotypes) 



3 

 5 



1 



1 



1 



