340 AMEEICAN FOSSIL BRYOZOA. [bull. 173 



Pachydictya hexagonalis Ulrich. 



1889. Pachydictya hexagonalis. Ulrich, Contr. Micro-Pal. Cambro-Sil., Part II, 



p. 42, pi. ix, 2-2o. 

 1895. Pachydictya hexagonalis. Whiteaves, Pal. Foss., Ill, p. 118. 

 Cincinnati ( Richmond ) : Stony Mountain, Manitoba. 



Pachydictya magnipora Ulrich. 



1889. Pachydictya magnipora. Ulrich, Contr. Micro-Pal. Cambro-Sil., Part II. 



p. 43. 

 1897. Pachydictya magnipora. Whiteaves, Pal. Foss., Ill, p. 161. 

 Trenton: St. Andrews, Manitoba; Kenyon, Minnesota. 



Pachydictya obesa Foerste. 



1887. Pachydictya obesa. Foerste, Bull. Sci. Lab. Denison Univ. , II, p. 165 ; ibid. , 



III, 1888, pi. XV, 12. 

 1895. Pachydictya obesa. Foerste, Geol. Sur. Ohio, VII, p. 599, pi. xxviii, 12. 

 Clinton: Dayton, Ohio. 



Pachydictya occidentalis Ulrich. 



1886. Pachydictya occidentalis. Ulrich, Fourteenth Ann. Rep. Geol. Nat. Hist. 



Sur. Minnesota, p. 75. 

 1893. Pachydictya occidentalis. Ulrich, Geol. Minnesota, III, p. 151, pi. viii, 

 20-27, pi. ix, 6-10. 

 Trenton (Black River) : St. Paul and Goodhue County, Minnesota. 



Pachydictya pumila Ulrich. 



1890. Pachydictya pumila. Ulrich, Jour. Cincinnati Soc. Nat. Hist., XII, p. 



186, fig. 11. 

 1893. Pachydictya pumila. Ulrich, Geol. Minnesota, III, p.- 157, pi. x, 1-4, pi. 



viii, 4, 5. 

 1890. Rhinidictya humilis. Ulrich, Jour. Cincinnati Soc. Nat. Hist., XII, p. 185, 



fig. 10. 

 Trenton: Cannon Falls, Minnesota; Trenton Falls, New York. 



Pachydictya pumila- sublata Ulrich. 



1893. Pachydictya pimiila var. sublata. Ulrich, Geol. Minnesota, III, p. 158. 

 Trenton: Cannon Falls, Minnesota. 



Pachydictya robusta Ulrich. 



1882. Pachydictya robusta. Ulrich, Jour. Cincinnati Soc. Nat. Hist., V, p. 173, 

 pi. viii, lOa-c. 

 Trenton (Stones River) : Knoxville, Tennessee. 



Pachj^dictya (Rhinidictya) rudis Foerste. See Pachydictya crassa 



(Hall). 

 Pachydictya rustica Ulrich. See Pachydictya crassa (Hall). 



Pachydictya scitula Ulrich. See Pachydictya crassa (Hall). 



Pachydictya ? splendens Ulrich. 



1890. Pachydictya splendens. Ulrich, Geol. Sur. IlUnois, VIII, p. 523, pi. xxxi, 

 2g, pi. xxxii, 1-1 fc. 

 Cincinnati (Richmond): Wilmington, Illinois. 



Pachydictya triserialis Ulrich. 



1890. Pachydictya triserialis. Ulrich, Jour. Cincinnati Soc. Nat. Hist, XII, p. 



187, fig. 12. 

 1893. Pachydictya triserialis. Ulricli, Geol. Minnesota, III, p. 159, pi. x, 1 1-14. 

 Trenton: Montreal, Canada. 



