404 AMERICAN FOSSIL BRYOZOA. [bull. 173. 



Semicoscinium thyene (Hall) — Continued. 



1887. Fenestella Thyene. Hall and Simpson, Pal. New York, VI, p. 50, pi. 

 xxi, 1-5. 



1890. Semicoscinium thyene. Ulrich, Geol. Surv. Illinois, VIII, p. 534. 

 Lower Helderberg: Clarksville, New York. 



Semicoscinium tortum (Hall). 



1883. Fenestella torta. Hall, Trans. Albany Institute, X, p. 172 (abstract, 1881, 

 p. 30). 

 Hamilton: Falls of the Ohio. 



Semicoscinium tuberculatum Proiit. 



1859. Semicoscinium tuberculatum. Prout, Trans. St. Louis Acad. Sci., I, p. 579. 

 Hamilton: Falls of the Ohio. 



SEMIOPORA Hall. Genotype: Semiopora bistigmata Hall. 



1883. Semiojjora. Hall, Trans. Albany Institute, X, p. 193 (abstract, 1881, 



p. 193). 



1884. Semiopora. Hall, Rep. State Geologist New York for the year 1883, p. 51. 

 1887. Semiopora. Hall and Simpson, Pal. New York, VI, p. xxii. 



1889. Semiopora. Miller, North American Geol. Pal., p. 322. 

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

 for the year 1894, p. 535. 



Semiopora bistigmata Hall. 



1883. Semiopora bistigmata. Hall, Trans. Albany Institute, X, p. 193 (abstract, 



1881, p. 193). 



1884. Semiopora bistigmata. Hall, Rep. State Geologist New York for the year 



1883, p. 51. 

 1887. Semiopora bistigmata. Hall and Simpson, Pal. New York, VI, p. 262, 

 pi. xlii, 27-29. 



1891. Semiopora bistigmata. Hall, Tenth Ann. Rep. State Geologist New York 



for the year 1890, p. 52; Forty-fourth Ann. Rep. New York State Mus., 

 p. 82. 



1897. Semiopora bistigmata. Simpson, Fourteenth Ann. Rep. State Geologist 



New York for the year 1894, pi. xi, 10, 11. 



1898. Semiopora bistigmata. Whiteaves, Contr. Canadian Pal., I, Part V, p. 377. 

 Hamilton: West Williams, Ontario. 



SEPTOPORA Prout. Genotype: Septopora Cestriensis Prout. 



1859. Septopora. Prout, Trans. St. Louis Acad. Sci., I, p. 448. 

 1882. Septopora. Ulrich, Jour. Cincinnati Soc. Nat. Hist., V, p. 150. 



1885. Septopora. Waagen and Pichl., Pal. Indica, Ser. XIII, p. 773. 



1886. Septopora. Ulrich, Contr. American Pal., I, p. 6. 



1887. Septopora. Foerste, Bull. Sci. Lab. Denison Univ., II, p. 79. 



1889. Septopora. Miller, North American Geol. Pal., p. 322. 



1890. Septopora. Ulrich, Geol. Surv. Illinois, VIII, pp. 397, 626. 



1895. Septopora. Simpson, Thirteenth Ann. Rep. State Geologist New Y''ork for 

 the year 1893, pp. 721, 726; Forty-seventh Ann. Rep. New York State 

 Mus., pp. 915, 920. 



1895. Septopora. Whidborne, Devon. Fauna England (Pal. Soc. Publ.), II, 



part 4, p. 183. 



1896. Septopora. Ulrich, Zittel's Textb. Pal. (Engl, ed.), p. 283. 



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



for the year 1894, pp. 614, 521. 



