142 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Bumastus ioxus (Hall). 



Bumastus barriensis Hall (not Murchison), Geol. New York, pt. 4, 1843, p. 102, 



fig. 4; p. 101; tab. org. rem., 10, fig. 4, and 19, fig. 2. Owen, Amer. Jour. 



Sci. and Arts, 48, 1845, p. 309, fig..4. Verneuil, Amer. Jour. Sci. and Arts, 



2d ser., 7, 1849, p. 225. Hall, Pal. New York, 2, 1852, p. 302, pi. 66, figs. 



1-15. Roemer, Sil. Fauna West Tennessee, Breslau, 1860, p. 83, pi. 5, fig. 



23. Emmons, Man. Geol., 1860, p. 108, fig. 98. Billings, Geol. Canada, 



Geol. Surv. Canada, 1863, p. 319, fig. 338. Miller, N. A. Geol. Pal., 1889, p. 



536, fig. 981. 

 Illsenus (Bumastus) barriensis? Hall, Geol. Surv. Wisconsin, 1, 1862, p. 433; 



adv. sheets, 18th Rep. New York State Cab. Nat. Hist,, 1865, p. 28; 20th Rep. 



1867, p. 332. 

 Illsenus barriensis Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, 



pi. 8, fig. 5. Hall, Trans. Albany Inst., 4, 1863, p. 227. 

 Illsenus ioxus Hall, 20th Rep. New York State Cab. Nat. Hist., 1867, p. 387, 



fig.; pi. 22, figs. 4-11; pi. 23, fig. 1; rev. ed., 1870, p. 420, fig. 12, pi. 22, figs. 



4-10. Whitfield, Geol. Wisconsin, 4, 1882, p. 304, pi. 21, figs. 11, 12. 



Chamberlin, Geol. Wisconsin, 1, 1883, p. 195, fig. Lesley, Geol. Surv. 



Pennsylvania, Rep. P 4, 1889, p. 299, figs. Foerste, Proc. Bost. Soc. Nat. 



Hist., 24, 1889, p. 268, pi. 5, fig. 20. Van Ingen, School of Mines Quart., 23, 



1901, p. 35. Grabau, Bull. New York State Mus., 45, 1901, p. 223, fig. 154; 



Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 223, fig. 154. Kindle, 28th Rep. Dep. 



Geol. Nat. Res. Indiana, 1904, p. 480, pi. 22, fig. 7; pi. 23, fig. 3. Weller, 



Bull. Chicago Acad. Sci., Nat. Hist, Surv., 4, pt. 2, 1907, p. 222, pi. .18, figs. 



1-3. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 295, figs. 1606, 1607. 

 Illsenus (Bumastus) ioxus Hall, Trans. Albany Inst., 10, 1883, p. 76; llth Rep. 



Dep. Geol. Nat. Hist. Indiana, 1882, p. 335, pi. 38, figs. 13, 14. 

 Niagaran: Rochester, Lockport, etc., New York; Hamilton, etc., Ontario (Roches- 

 ter); Waldron, Indiana (Waldron); Racine, etc., Wisconsin j Illinois (Racine); 



Cedarville, etc., Wisconsin (Guelph); Indiana; Arkansas; Ohio; etc. 



Bumastus limbatus Raymond. 



Bumastus limbatus Raymond, Ann. Carnegie Mus., 7, 1910, p. 71; 7th Rep. Ver- 

 mont State Geol., 1910, p. 230, pi. 35, figs. 1. 2, 



Illsenus indeterminatus Raymond (not Walcott) Ann.. Carnegie Mus., 3, 1905, p. 

 347, pi. 13, figs. 1, 2. 



Chazyan (Valcour): Valcour Island, New York, and Isle La Motte, Vermont. 



Bumastus miller! (Billings). 



Cf. Illsenus trentonensis Emmons, Geol. New York, Rep. 2d Dist., 1842, p. 390, 

 fig. 3. 



Cf. Bumastus trentonensis Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 718, figs. 

 30-35. Weller, Pal. New Jersey, 3, 1902, p. 194, pi. 14, figs. 8-13. Grabau 

 and Shimer, N. A. Index Fossils, 2, 1910, p. 298, figs. 1610a, b. 



Illsenus milleri Billings, Canadian Nat. Geol., 4, 1859, p. 375, fig. 10; Geol. Canada, 

 Geol. Surv. Canada, 1863, p. 151, fig. 112. Walcott, 31st Ann. Rep. New 

 York State Mus. Nat. Hist., 1879, p. 71 (adv. sheets, 1877, p. 20). Raymond 

 and Narraway, Ann. Carnegie Mus., 4, 1908, p. 249, pi. 61, figs. 9, 10; pi. 62, 

 figs. 3-5. Grabau and Shimer j N. A. Index Fossils, 2, 1910, p. 297. 



Black River: Ottawa, etc., Ontario; New York; New Jersey; etc. 

 Observation. See Raymond and Narraway (1908) for a discussion of this and 



related species. 



Bumastus niagarensis (Whitfield). 



Illsenus niagarensis Whitfield, Ann. Rep. Wisconsin Geol. Surv., 1880, p. 68. 

 Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 219, pi. 

 19, figs. 7-11. 



