BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 1167 



SPH^REXO CHUS Continued. 



tract), 1847, p. 137, pi. 7, fig. 72. Salter, Mem. Geol. Surv. Gt. Britain, 1, 

 1848, p. 344. McCoy, Ann. Mag. Nat. Hist., 2d ser., 4, 1849, p. 400. Bar- 

 rande, Neues Jahrb. f. Min., etc., 1850, p. 779; Syst. Sil. du Centre Boheme, 

 1, 1852, p. 805. Salter, Mem. Geol. Surv. United Kingdom, dec. 7, 1853, 

 pi. 3. Pictet, Traite de Pal., 2d ed., 2, 1854, p. 521. Nieszkowski, Archiv. 

 f. Naturk. Liv.-Ehst-u. Kurl., 1, 1857, p. 594. Salter, Mon. British Tril., Pal. 

 Soc., 1864, p. 76. Barrande, Syst. Sil. du Centre Boheme, 1, Suppl., 1872, p. 

 109. Steinhardt, Beit. z. Naturk. P^eus. Phys.-Oekon. Gesell., Konigsberg, 

 1874, p. 60. Angelin, Pal. Scandinavica, 3d ed., Holmiae, 1878, p. 36. 

 Schmidt, Mem. 1'Acad. Imp. Sci. St. Petersburg, 7th ser., 30, 1881, p. 188. 

 Zittel, Handb. Pal., 2, 1885, p. 619. Miller, N. A. Geol. Pal., 1889, p. 567. 

 Koken, Die Leitfossilien, Leipzig, 1896, p. 33, fig. 23, fig. 3. Reed, Geol. 

 Mag., dec. 4, 5, 1898, p. 210. Grabau and Shinier, N. A. Index Fossils, 2, 

 1910, p. 321. Raymond, Zittel-Ekstman Textb. Pal., 1913, p. 725. 



SPH^EREXOCHUS CANADENSIS Billings. See Pseudosphserexochus canadensis. 

 SPH^REXOCHUS MIRUS Roemer. See Sphaerexochus romingeri. 



Sphaerexochus parvus Billings. 



Billings, Can. Nat. Geol., 4, 1859, p. 468, fig. 36. 

 Sphserexochus parvus Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 133, 



fig. 66; Pal., Foss., 1, Geol. Surv. Canada, 1865, p. 180, fig. 161a, b. Miller, 



N. A. Geol. Pal., 1889, p. 567, fig. 1060. Lesley, Geol. Surv. Pennsylvania, 



Rep. P 4, 1890, p. 974, fig. Raymond, Annals Carnegie Mus., 3, 1905, p. 



366, figs. 4, 5; p. 372, pi. 14, fig. 22; 7th Rep. Vermont State Geol., 1910, p. 



246, pi. 36, fig. 22. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 321, 



fig. 1634e. 

 Chazyan: Island of Montreal and Mingan Islands, Canada; Chazy, Valcour Island, 



etc., New York; Isle La Motte, Vermont (Crown Point). 



SPHSEREXOCHUS PISUM Foerste. See Deiphon forbesi. 



Sphserexochus romingeri Hall. 



Sphaerexochus mirus Roemer, Sil. Fauna West Tennessee, 1860, p. 81, pi. 5, fig. 20.^- 

 Hall, Adv. sheets 18th Rep. New York State Cab. Nat. Hist., 1865, p. 30; 

 20th Rep. New York State Cab. Nat. Hist., 1867, p. 334. Foerste, Bull. Sci. 

 Lab. Denison Univ., 3, 1888, p. 121, pi. 13, fig. 6. 



Sphaerexochus romingeri Hall, Geol. Surv. Wisconsin, 1, 1867, p. 434; 20th Rep. 

 New York State Cab. Nat. Hist., 1867, p. 375, pi. 21, figs. 4-7; 20th Rep. 

 New York State Cab. Nat. Hist., 1870, rev. ed., p. 425, pi. 21, figs. 4-7. 

 Meek and Worthen, Geol. Surv. Illinois, 7, 1875, p. 510, pi. 24, fig. 4 

 Whitfield, Geol. Wisconsin, 4, 1882, p. 311, pi. 21, figs. 1-3. Chamberlin, 

 ibid., 1, 1883, p. 195, fig. Van Ingen, School of Mines Quart., 23, 1901, p. 

 35. Kindle, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 483, 

 pi. 22, figs. 8-9, 12-15. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 

 4, pt. 2, 1907, p. 266, pi. 24, figs. 6-19. Grabau and Shimer, N. A. Index 

 Fossils, 2, 1910, p. 321, fig. 1635. 



Niagaran: Milwaukee and Waukesha, Wisconsin; Bridgeport, Illinois (Racine); 

 Cedarville, Ohio (Guelph); Independence County, Arkansas (St. Clair); 

 Connor's Mill, etc., Indiana; West Tennessee (Brownsport). 



SPH^REXOCHUS ROMINGERI? Hall 1877. See Cheirurus niagarensis. 

 SPH^EROBOLUS Matthew. See Obolus subgenus Lingulobolus Walcott. 





