1022 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Polypora alblonensis Spencer. Recognizable? 



Polypora (Fenestella?) albionensis Spencer, Trans. St. Louis Acad. Sci., 4, 1884, 

 p. 605, pi. 7, figs. 5, 5a; Bull. Mus. Univ. State Missouri, 1, 1884, p. 55, pi. 7, 

 figs. 5, 5a. 

 Niagaran: Six miles east of Hamilton, Ontario. 



Polypora conferta (Hall). 



Fenestella conferta Hall, Trans. Albany Institute, 10, 1883, p. 63 (abstract, 1879, 



p. 7); 11th Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 252. 

 Niagaran (Waldron): Waldron, Indiana. 



Polypora dictyota Ulrich and Bassler. 



Polypora dictyota Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p. 



283, pi. 47, fig. 3. 

 Helderbergian (Keyser): Cumberland, Maryland. 

 Holotype— Cat. No. 60742, U.S.N.M. 



Polypora incepta Hall. 



Polypora incepta Hall, Pal. New York, 2, 1852, p. 167, pi. 40D, figs. 5a-f— Pictet, 

 Traite de Pal., 2d ed., 4, 1857, p. 166, pi. 92, fig. 15.— Ulrich, Geol. Surv. 

 Illinois, 8, 1890, p. 358, pi. 55, fig. 1.— Grabau, Bull. New York State Mus., 

 45, 1901, p. 172, fig. 73; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 172, fig. 73.— 

 Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 52, pi. 19, figs. 8-13.— Grabau 

 and Shimer, N. A. Index Fossils, 1, 1907, p. 148, fig. 204. 



Clinton (Rochester): Rochester and Lockport, New York; Grimsby, Ontario. 



Plesiotype.— Cat. No. 44074, U.S.N.M. (Ulrich). 



Polypora punctostriata (Hall). 



Fenestella punctostriata Hall, 28th Ann. Rep. New York State Mus. (doc. ed.), 



1876, pi. 12, figs. 15, 16; mus. ed., 1879, p. 125, pi. 12, figs. 15, 16; 11th Ann. 



Rep. Indiana Geol. Nat. Hist., 1882, p. 251, pi. 11, figs. 15, 16. 

 Niagaran (Waldron): Waldron, Indiana. 



Polypora tantula (Hall). 



Fenestella tantulus Hall, Trans. Albany Institute, 10, 1883, p. 64 (abstract, 1879, 



p. 8); 11th Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 253. 

 Niagaran (Waldron): Waldron, Indiana. 



Polyporella Simpson. See Polypora McCoy. 



POLYTCECHIA Hall and Clarke. Genotype: Hemipronites apicalis Whitfield. 



Polytcechia Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 239, figs. 11, 12; 



11th Ann. Rep. New York State Geol., 1894, p. 275.— Miller, N. A. Geol. Pal., 



1st App., 1892, p. 690.— Schuchert, Zittel-EastmanTextb. Pal., 1, 1900, p. 320; 



ibid., 2d ed., 1913, p. 393.— Walcott, Proc. U. S. Nat. Mus., 28, 1905, p. 295. 



Polytcechia apicalis (Whitfield). 



Hemipronites apicalis Whitfield, Bull. American Mus. Nat. Hist., 2, 1886, p. 300, 



pi. 24, figs. 1-5.— Seely, Vermont State Geol., Rep. 7, 1910, pi. 62, figs. 1-5. 

 Polytcechia apicalis Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 239, fig. 



11, 12, pi. 7A, figs. 26-30. 

 Canadian (Beekmantown): Fort Cassin, Vermont. 



Polytcechia? montanensis Walcott. See Clarkella montanensis. 



Polytomurus Hawle and Corda. See Dionide Barrande. 



Polytropina Donald. See Poleumita Clarke and Ruedemann. 



