464 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



DUNCANELLA Nicholson. Genotype: D. borealis Nicholson. 



Duncanella Nicholson, Ann. Mag. Nat. Hist., 4th ser., 13, 1874, p. 333. — Zittel; 

 Handb. Pal., 1, 1879, p. 226.— Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, 

 p. 396.— Miller, N. A. Geol. Pal., 1889, p. 187.— Freeh, Palaeontographica, 37, 

 1890, p. 81.— Sherzer, Amer. Geol., 7, 1891, pp. 278-283.— Girty, 19th Ann. 

 Kep. U. S. Geol. Surv., 1899, p. 556; Zittel-Eastman Textb. Pal., 1, 1900, 

 p. 74; 2d ed., 1913, p. 82.— Grabau and Shimer, N. A. Index Fossils, 1, 1906, 

 p. 76. 



Duncanella borealis Nicholson. 



Duncanella bcrealis Nicholson, Ann. Mag. Nat. Hist., 4th ser., 13, 1874, p. 334, 



fig.— Miller, N. A. Geol. Pal., 1889, p. 187, fig. 172.— Grabau and Shimer, 



N. A. Index Fossils, 1, 1906, p. 76. 

 Streptclasma (Duncanella) borealis Hall, 28th Rep. New York State Mus. Nat. 



Hist., mus. ed., 1879, p. 106, pi. 5, figs. 7, 8; 11th Ann. Rep. Indiana Dep. 



Geol. Nat. Hist., 1882, p. 226, pi. 1, figs. 7-10; pi. 4, fgs. 7, 8. 

 Streptclasma borealis Lesley, Geol. Surv. Pennsj^lvania, Rep. P 4, 1890, p. 1084, 



figs. 

 Streptclasma minima Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 



1875, pi. 5, figs. 7, 8. 

 Niagaran (Waldron): Waldi'on, Indiana; Newsom, Tennessee. 

 Clinton (Osgood): Osgood, Indiana. 



Duncanella fanningana Girty. See Ditcecholasma fanninganum. 



Dybowskia Waagen and Pichl. See Fistulipora McCoy. 



Dybowskiella Waagen and Wentzel. See Fistulipora McCoy. 



DTERIA Ulrich. Genotype: Cyrtolitee costatus James. 



Dyeria Uhich, Geol. Minnesota, 3, pt. 2, 1897, p. 1044. 



Dyerla costata (James). 



Cyrtolites costatus James, Amer. Jour. Sci., 3d ser., 3, 1872, p. 26. — Meek, Geol. 



Surv. Ohio, Pal., 1, 1873, p. 150, pi. 13, figs, la, b, c. 

 Bucania costatus Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 308. 

 Dyeria costata, Ulrich, Geol. Minnssota, 3, pt. 2, 1897, p. 1044. text fig. 8. — Grabau, 



Amer. Nat., 36, 1902, p. 939. 

 MaysviUe (Corryville) : Cincinnati, Ohio, and vicinity. 

 Plesiotypes.— Cat. No. 45796, U.S.N. M. 



DTSTACTOPHYCUS Miller and Dyer. 



Genotype: D. mammillanum Miller and Dyer. 

 Dystactophycus Miller and Dyer, Cont. to Pal., 2, 1878, p. 2. — James, Jour. 

 Cincinnati Soc. Nat. Hist., 7, 1885, p. 163.— Miller, N. A. Geol. Pal., 1, 1889, 

 p. 117. 



Dystactophycus mammillanum Miller and Dyer. 



Dystactophycus mammillanum Miller and Dyer, Cont. to Pal., 2, 1878, p. 3, pi. 



3, fig. 4. — James, Joiu*. Cincinnati Soc. Nat. Hist., 18, 1895, p. 125. — Miller, 



N. A. Geol. Pal., 1889, p. 118, fig. 34. 

 MaysviUe (Corryville): Near Morrow, Ohio. 



DTSTACTOSPONGIA Miller. Genotype: D. insolens Miller. 



Dystactospongia Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 42. — Miller, 

 N. A. Geol. Pal., 1889, p. 158.— James, J. F., Jour. Cincinnati Soc. Nat. 

 Hist., 14, pt. 1, 1891, p. 70. 



