BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 143 



Bumastus iiiagarensis Continued. 



Bumastus niagarensis Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 298. 

 Illoenus madisonianus Whitfield, Geol. Wisconsin, 4, 1882, p. 307, pi. 20, figs. 8, 



9. Chamberlin, Geol. Wisconsin, 1, 1883, p. 195, fig. Foerste, Bull. Sci. 



Lab. Denison Univ., 1, 1885, p. 106, pi. 14, figs, la, Ib, 2a-2b; 2, 1887, p. 93 f 



pi. 8, figs. 8-10; Geol. Surv. Ohio, Pal., 7, 1893, p. 526, pi. 27, figs. 7-10. 



Van Ingen, School of Mines Quart., 23, 1901, p. 35. 

 Illsenus madisonianus vars. elongatus and depressus Foerste, Geol. Surv. Ohio, 7, 



K93, p. 526, pi. 26, figs. 1, 2; pi. 27, figs. 7-10. 

 Niagaran: Wisconsin and Illinois (Racine); St. Clair Springs, Arkansas (St. Glair); 



Dayton, Ohio (Brassfield). 



Bumastus orbicaudatus (Billings). 



Illsenus orbicauda Billings, Canadian Nat., 4, 1859, p. 379. 



Illaenus orbicaudatus Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, 



p. 27, fig. 10; p. 60. Salter, Mon. Brit. Tril., Pal. Soc., 1867, p. 209. 

 Richmond-Anticostian (English Head, Gun River) : English Head, Gamache Bay, 



etc., Anticosti. 



BUMASTUS ORBICAUDATUS Clarke. See Bumastus billingsi. 



Bumastus transversalis Weller. 



Bumastus transversalis Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 195, pi. 



14, fig. 14. 

 Trenton: Hainesburg, New Jersey. 



imastus trentonensis Emmons. 

 Bumastus trentonensis Emmons, Nat. Hist. New York, Geol., 2, 1842, p. 390, fig. 1. 

 Illaenus trentonensis Hall, Pal. New York, 1, 1847, p. 230, pi. 69, fig. 5. 

 Trenton (drift): Hogansburg, New York. 



Observation. Type lost and figures not sufficient for accurate identification. 

 See Raymond and Narraway (Annals Carnegie Mus., 4, 1908, p. 251) for a dis- 

 cussian of this and related forms. 



lUTHOGRAPTUS Hall. Genotype: B. laxusHall. 



Buthograptus Hall, Rep. Sup. Geol. Surv. Wisconsin, 1861, p. 18; 20th Rep. 

 New York State Cab. Hist., 1868, p. 218; rev. ed., 1870, p. 252. Nicholson, 

 Mon. Brit. Grapt., 1872, p. 131. Spencer, Trans. Acad. Sci. St. Louis, 4, 

 1884, p. 563. Whitfield, Bull. Amer. Mus. Nat. Hist., 6, 1894, p. 351 (Bytho- 

 cladus, new name, suggested). 



Bythograptus Miller, N. A. Geol. Pal., 1889, p. 174. 



Buthograptus laxus Hall. 



Buthograptus laxus Hall, Rep. Sup. Geol. Surv. W T isconsin, 1861, p. 19; Geol. 

 Surv. Canada, dec. 2, 1865, p. 18, fig. 25; 20th Rep. New York State Cab. 

 Nat. Hist., 1868, p. 185, fig. 27; rev. ed., 1870, p. 214, fig. 27. Nicholson, 

 Mon. Brit. Graptol., 1872, p. 132, fig. 72. Chamberlin, Geol. Wisconsin, 1, 

 1883, p. 153, fig. Whitfield, Bull. Amer. Mus. Nat. Hist,, 6, 1894, p. 351, pi. 

 11, figs. 1-3; Mem. Amer. Mus. Nat. Hist,, 1, pt. 2, 1895, p. 40, pi. 4, figs. 1-3. 



Black River (Platteville) : Platteville, etc., Wisconsin. 



BUTHOTREPHIS Hall. Genotype: B. antlquata Hall. 



Buthotrephis Hall, Pal. New York, 1, 1847, p. 8. Billings, Pal. Foss., 1, Geol. 

 Surv. Canada, 1865, p. 99. Nathorst, Ofvers K. Vet.-Akad. Forhandl., 30, 

 No. 9, 1873, p. 46. James, Jour. Cincinnati Soc. Nat. Hist., 7, 1885, p. 159. 



Bythotrephis Roemer, Leth. geog., 1, Theil. Leth. Pal., Erste Leif, 1880, p. 123. 

 Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 139. Grabau, 

 Bull. Now York State Mus., 45, 1901, p. 130; Bull. Buffalo Soc. Nat. Sci., 

 7, 1901, p. 130. Miller, N. A. Geol. Pal., 1889, p. 109. 



