220 AMERICAN FOSSIL BRYOZOA. [bull. 173. 



Cyclotrypa collina (Ulrich). 



1890. Fistulipora collina. Ulrich, Geol. Surv. Illinois, VIII, p. 478, pi. xlvii, 6-66, 



pi. xlviii, 5, 5a. 

 1896. Cyclotrypa collina. Ulri(;h, Zittel's Textb. Pal. (Engl. ed. ), p. 269. 

 Hamilton : Buffalo, Iowa. 



Cyclotrypa communis (Ulrich). 



1890. Fistulipora communis. Ulrich, Geol. Surv. Illinois, VIII, p. 476, pi. xlvii, 



1, 1«, pi. xlviii, 1, 1«. 

 1896. Cyclotrypa communis. Ulrich, Zittel's Textb. Pal. (Engl, ed.), fig. 443 

 (p.269). 

 Hamilton: Buffalo, Iowa; Rock Island, Illinois. 



CYSTODICTYA Ulrich. Genotype: Cystodictya ocellata Ulrich. 



1882. Cystodictya. Ulrich, Jour. Cincinnati Soc. Nat. Hist., V, pp. 152, 170. 

 1884. Cystodictya. Ulrich, Jour. Cincinnati Soc. Nat. Hist., VII, p. 35. 

 1887. Cystodictya. Foerste, Bull. Sci. Lab. Denison Univ., II, p. 74. 



. 1889. Cystodictya. Miller, North American Geol. Pal. , p. 299. 



1890. Cystodictya. Ulrich, Geol. Surv. Illinois, VIII, pp. 385, 491. 



1896. Cystodictya. Ulrich, Zittel's Textb. Pal. ( Engl. ed. ) , p. 280. 



1897. Cystodictya. Simpson, Fourteenth Ann. Rep. State Geologist New York 



for the year 1894, p. 536. 



1883. Arcanopora. Vine, Fifty-third Rep. British Assoc. Adv. Sci., p. 204. 

 1887. Stictopora (not of Hall, 1847). Hall and Simpson, Pal. New York, VI, 



p. XX. 



1897. Stictocella. Simpson, Fourteenth Ann. Rep. State Geologist New York for 

 the year 1894, p. 532. 



Cystodictya americana Ulrich. 



1890. Cystodictya americana. Ulrich, Geol. Surv. Illinois, VIII, p. 494, pi. Ixxvi, 



5, 5a. 

 1894. Cystodictya americana. Keyes, Missouri Geol. Surv., V, j^ 17. 

 Keokuk: Kings Mounta,in, Kentucky; Bentonsport, Iowa. 



Cystodictya angularis (Hall and Simpson). 



1887. Stictoi)ora angularis. Hall and Simpson, Pal. New York, VI, p. 252, pi. 



Ixi, 23. 



1891. Stictopora angularis. Hall, Tenth Ann. Rep. State Geologist New York 



for the year 1890, p. 46; Forty -fourth Ajin. Rep. New York State Mus., 



p. 76. 

 Hamilton: Near Le Roy, New York. 

 Obs. Probably a synonym for Cystodicta tumulosa (Hall and Simpson), 



Cystodictya angusta Ulrich. 



1888. Cystodictya angusta. Ulrich, Bull. Denison Univ., IV, p. 82, pi. xiv, 20. 

 Waverly: Moot's Run, Ohio. 



Cystodictya bifurcata (Hall and Simpson). 



1887. Stictopora bifurcata. Hall and Simpson, Pal. New York, VI, p. 254, pi. 



Ixiii, 17. 

 1891. Stictopora bifurcata. Hall, Tenth Ann. Rerp. State Geologist New York 



for the year 1890, p. 47; Forty-fourth Ann. ReiJ. New York State Mus., 



p. 77. 



1889. Stictopora bristolensis. Miller, North American Geol. Pal., p. 323. 

 Hamilton: Near Mutton ville, Ontario County, New York. 



Cystodictya carbonaria (Meek). 



1871. Ptilodictya (Stictopora) carbonaria. Meek, Proc. Acad. Nat. Sci. Philadel- 

 phia, p. 160. 



