430 AMERICAN FOSSIL BRYOZOA. [bull. 173. 



Thecosteg-ite.s hemi.sphericus F. Roeiner. See Fistidiponi lienii- 

 spherica (F. Roemer). 



TREMATELLA Hall. Genotype: Trematopora annulata Hall. 



1886. Treniatella. Hall, Fifth Ann. Rep. State Geologist New York for the year 



1885, explanation pi. xxv. 



1887. Trematella. Hall and Simpson, Pal. New York, VI, p. xiv. 

 1889. Trematella. Miller, North American Geol. Pal., p. 329. 



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

 for the year 1894, p. 550. 

 Obs. Trematella is probably a synonym for Batostomella, Ijut until the 

 genotype is better known the present arrangement seems best. 



Trematella annulata (Hall). 



1883. Trematopora ? annulata. Hall, Trans. Albany Institute, X, j). 147 (ab- 

 stract, 1881, p. 5). 



1883. Trematopora ? annulata. Hall, Rep. State Geologist New York for the 

 year 1882, pi. (26) xxiv, 1, 2. 



1886. Trematella annulata. Hall, Fifth Ann. Rep. State Geologist New York 



for the year 1885, pi. xxv, 22-24. 



1887. Trematopora (Trematella) annulata. Hall and Simpson, Pal. New York, 



VI, p. 69, pi. xxv, 22, 23, pi. xxvi, 1, 2. 

 1893. Batostomella annulata. Ulrich, Geol. Minnesota, III, p. 229. 

 1897. Trematella annulata. Simpson, Fourteenth Ann. Rep. State Geologist New 



York for the year 1894, pi. xix, 6-9. 

 1883. Trematopora ? annulata var. pronaspina. Hall, Trans. Albany Institute, 



X, p. 148 (abstract, 1881, p. 6). 

 Hamilton : Falls of the Ohio. 



Trematella arborea (Hall). 



1883. Trematopora arborea. Hall, Trans. Albany Institute, X, p. 147 (abstract, 

 1881, p. 5). 



1886. Trematella arl)orea. Hall, Fifth Ann. Rep. State Geologist New York for 



the year 1885, pi. xxv, 16-21. 



1887. Trematopora (Trematella) arborea. Hall and Simpson, Pal. New York, 



VI, p. 69, pi. xxv, 16-21. 

 Hamilton: Falls of the Ohio 



Trematella glomerata (Hall). 



1886. Trematella glomerata. Hall, Fifth Ann. Rep. State Geologist New York 



for the year 1885, pi. xxv, 4, 5. 



1887. Trematopora (Trematella) glomerata. Hall and Simpson, Pal. New York,. 



VI, p. 70, pi. xxv, 4, 5. 

 Upper Helderberg: Onondaga Valley, New York. 



Trematella nodosa (Hall and Simpson). 



1887. Trematopora (Trematella) nodosa. Hall and Simpson, Pal. New York, 

 VI, p. 176. 

 Hamilton: Jaycox's Run, New York. 



Trematella perspinulata (Hall). 



1883. Trematopora perspinulata. Hall, Trans. Albany Institute, X, p. 181 



(abstract, 1881, p. 181). 



1884. Trematopora perspinulata. Hall, Rep. State Geologist New York for the 



year 1883, p. 11. 

 1887. Trematopora (Trematella) perspinulata. Hall and Simpson, Pal. New 

 York, VI, p. 175. 



