208 AMERICAN FOSSIL BRYOZOA. [bull.173. 



Chilotrypa constricta (Hall). 



1874. Trematopora constricta. Hall, Twenty-sixth Ann. Rep. New York State 



Mus.,p. 104. 

 1879. Trematopora ? constricta. Hall, Thirty-second Ann. Rep. New York State 



Mus., p. 150 (reprint, 1880, p. 12). 

 1888. Trematopora ? constricta. Hall, Rep. State Geologist New York for the 



year 1882, pi. x, 14-19. 



1887. Diamesopora constricta. Hall and Simpson, Pal. New York, VI, ]j. 19, pi. 



X, 14-19, pi. xxiiiA, 7. 

 Lower Helderberg: Clarksville, New York. 

 Ohs. See also Chilotrypa dispersa (Hall). 



Chilotrypa dispersa (Hall). 



1879. Trematopora dispersa. Hall, Thirty-second Ann. Rep. New York State 

 Mus., p. 150 (reprint, 1880, p. 12). 



1888. Trematopora dispersa. Hall, Rep. State Geologist New York for the year 



1882, pi. X, 20, 21. 

 1887. Diamesopora dispersa. Hall and Simpson, Pal. New York, VI, p. 20, pi. x, 



20, 21. 

 Lower Helderberg: Clarksville, New York. 

 Obs. The form is probably a synonym for Chilotrypa constricta (Hall). 



Chilotrypa hispida (Ulrich). 



'884. Cheilotrypa hispida. Ulrich, Jour. Cincinnati Soc. Nat. Hist., VII, p. 50, 

 pi. iii, 6-6f?. 

 Chester: Sloans Valley, Grayson Springs, and Stephensport, Kentucky; 

 Chester and many other localities in Illinois. 



Chilotrypa ostiolata (Hall). 



1852. Trematopora ostiolata. Hall, Pal. New York, II, p. 152, pi. xlA, 5a-m. 



1875. Trematopora ostiolata. Nicholson, Pal. Province Ontario, p. 60, fig. 26. 



(Perhaps not the same form. ) 

 1884. Cheilotrypa ostiolata. Ulrich, Jour. Cincinnati Soc. Nat. Hist., VII, pi. iii, 



7, 7a. 

 1897. Chilotrypa ostiolata. Simpson, Fourteenth Ann. Rep. State Geologist New 



York for the year 1894, pi. xxi, 1, 2. 

 Niagara: Lockport and Rochester, New York; Hamilton and Niagara 



River, Ontario. 



Chilotrypa varia (Hall). 



1876. Trematopora varia. Hall, Twenty-eighth Ann. Rep. New York State Mus. 



(documentary edition), pi. x, 15-23; ibid. (Museum edition), 1879, p. Ill, 



pi. X, 15-23. 

 1882. Trematopora varia. Hall, Eleventh Ann. Rep. Indiana Geol. Nat. Hist., 



p. 232, pi. ix, 15-23. 

 1890. Diamesopora varia. Ulrich, Geol. Surv. Illinois, VIII, p. 467. 

 Niagara: Waldron, Indiana. 



Chilotrypa variolata (Hall). 



1876. Trematopora variolata. Hall, Twenty -eighth Ann. Rep. New York State 

 Mus. (documentary edition), pi. xi, 9, 10; ibid. (Museum edition, 1879), 

 p. 113, pi. xi, 9, 10. 

 1882. Trematopora variolata. Hall, Eleventh Ann. Rep. Indiana Geol. Nat. Hist., 

 p. 234, pi. X, 9, 10. 

 Niagara: Waldron, Indiana. 



