BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 855 



Nicholsonella ringuebergi Bassler. 



Ntcholsonella ringuebergi Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 39, pi. 14, 



figs. 12, 13. 

 Clinton (Rochester): Lockport, New York. 



Holotype.C&t. No. 35493, U.S.N.M. 



Nicholsonella vaupeli (Ulrich). 



Heterotrypa vaupeli Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 85, 



pi. 1, figs. 2-2b. 

 Monticulipora vaupeli James and James, Jour. Cincinnati Soc. Nat. Hist., 11, 1888, 



p. 19. J. F. James, ibid., 18, 1895, p. 71. 

 Nicholsonella vaupeli Ulrich, Geol. Surv. Illinois, 8, 1890, p. 421. Grabau and 



Shimer, N. A. Index Fossils, 1, 1907, p. 136. Cumings, 32d Ann. Rep. Dep. 



Geol. Nat. Res. Indiana, 1908, p. 863, pi. 21, figs. 3-3c; pi. 31, fig. 3. 

 Maysville (Bellevue): Cincinnati, Ohio, and vicinity. 

 Cotypes. Cat. No. 43689, U.S.N.M. 



NICHOLSONIA Waagen and Wentzel. See Escharopora Hall. 

 NICHOLSONIA PAVONICA Waagen and Wentzel. See Escharopora pavonia. 



NIDULITES Salter. Genotype: N. favus Salter. 



Nidulites Salter, Quart. Jour. Geol. Soc. London, 1851, 7, p. 174. Morris, Cat. 

 British Foss., 1854, 2d ed., p. 362. Bigsby, Thesaurus Sil., 1868, p. 4. Salter, 

 Cat. Camb. and Sil. Foss., Woodwardian Mus., Cambg., 1873, p. 72. Nichol- 

 son and Etheridge, Mon. Sil. Foss. Girvan Dist., 1, 1878, p. 10. 



Nidulites favus Salter. 



Nidulites favus Salter, Quart. Jour. Geol. Soc. London, 7, 1851, p. 174, pi. 9, figs. 

 16, 17; Cat. Camb. and Sil. Foss., 1873, p. 72, figs. Nicholson and Etheridge, 

 Mon. Sil. Foss. Girvan Dist., 1, 1880, p. 18, pi. 9, figs. 15-22. Ami, Ottawa 

 Nat., 8, No. 6, 1894, p. 2. 

 Middle Ordovician: England; Quebec, Canada. 



Nidulites gregarius (Billings). 



Pasceolus gregariua Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, 



p. 72. Kayser, Zeits. d. d. geol. Gesell., 27, 1875, p. 780. Whiteaves, Pal. 



Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 144. 

 Cyclocrinus gregarius Stolley, Archiv. Anthrop. Geol, Schleswig-Holsteins, 1, 



Heft 2, 1896, p. 215 (gen. ref.). 

 Anticostian (Gun River) : Reef Point, Anticosti. 



Nidulites iiitermedius (Billings). 



Pasceolus intermedius Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 



1866, p. 72. Kayser, Zeits. d. d. geol. Gesell., 27, 1875, p. 780. 

 Cyclocrinus intermedius Stolley, Archiv. Anthrop. Geol. Schleswig-Holsteins, 



1, Heft 2, 1896, p. 215 (gen. ref.). 

 Anticostian (Gun River) : Three miles west of Jupiter River, Anticosti. 



Nidulites pyriformis Bassler (new species). 



Nidulites sp. Bassler, BuU. Virginia Geol. Surv., 2a, 1909, pi. 7, fig. 11. 

 Middle Ordovician ( Chambersburg ) : Strasburg, etc., Virginia; Maryland; 

 Pennsylvania. 



NIESZKOWSKIA Schmidt. Genotype: Cyrtometopus tumidus Angelin. 



Nieszkowskia Schmidt, Mem. 1'Acad. Imp. Sci. St. Petersburg, 7th ser., 30, 1881, 



pp. 124, 126, 130, 179. Zittel, Handb. Pal., 2, 1885, p. 618. Clarke, Geol. 



