66 BULLETIN 92, ITNITED STATES NATIONAL MUSEUM. 



Arctiminis boltoiil — Continued. 



Platynotus boltoiii Conrad, Rep. New York State Geol Surv., 1838, p. 118.— 

 Hall, Gcol. New York, pt. 4, Tab. Org. Rem., 1843, p. 19, fig. 1. 



Lichas boltoni Hall, Pal. New York, 2, 1852, p. 311, pi. 69; pi. 70, figs, la-g, j-1 

 (not figs. Ih-i).— Gebhgjd, 8th Rep. New York State Cab. Nat. Hist., 1855, 

 p. 29, pi. 69, fig. 1.— Meek and Worthen, Geol. Sun'. Illinois, 6, 1875, p. 508, 

 pi. 25, fig. 5.— Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 336, fig.— 

 Clarke, 10th Rep. State Geol. New York, 1891, p. 88; 44th Rep. New York 

 State Mus., 1892, p. 112.— Keyes, Missouri Geol. Surv., 4, 1894, p. 226.— 

 Grabau, Bull. New York State Mus., 45, 1901, p. 225, pi. 17. 



Lichas (Oncholichas) Boltoni Schmidt, Mem. I'Acad. Imp. Sci. St. Petersburg, 

 7th ser., 33, 1885, p. 31. 



Pterolichas boltoni Gurich, Neues Jahrb. f. Min., Geol. Pal., Beilage-Band, 14, 

 1901, p. 528, pi. 20, fig. 2. 



Clinton (Rochester): Lockport, Rochester, etc., New York; Grimsby, Hamilton, 

 etc., Ontario. 



Plastotype.—Cat. No. 4888, U.S.N. M. 



Arctinunis chicagoensis Weller. 



Arctinurus cliicagoensis Weller, Bull. Chicago Acad. Sci., Nat. Hist. Sun'., 4, pt. 



2, 1907, p. 248, pi. 23, figs. 7, 8; pi. 22, fig. 14. 

 Niagaran (Racine): Hawthorne, Illinois. 



Arctinunis harrisi (Miller). 



Lichas hamsi Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 106, pi. 3, fig. 9. 

 Lichas (Platynotus) harrisi Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 753. 

 Richmond (Liberty): Near WaynesvUle, Ohio. 

 Eolotype.—Qai. No. 40690, U.S.N. M. 



Arctinunis nereus (Hall). 



Lichas boltoni Hall, Pal. New York, 2, 1852, p. 311, pi. 70, figs. Ih-i (not figs. 



la-g, j-1). 

 Lichas nereus Hall, 16th Rep. New York State Cab. Nat. Hist., 1863, p. 226.— 



Van Ingen, School of Mines Quart., 23, 1901, p. 64, pi. figs. 1^1-26. 

 Arctinunis nereus Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 308. 

 Niagaran: Lockport, New York (Rochester); St. Clair Springs, Independence 



County, Arkansas (St. Clair). 



Arctinunis obvius (Hall). 



Lichas obvius Hall, 20th Rep. New York State Cab. Nat. Hist., 1870 (rev. ed.), 



p. 424, pi. 25, fig. 10. 

 Lichas (Oncholichas) obvia Schmidt, Mem. I'Acad. Imp. Sci. St. Petersburg, 7th 



ser., 33, 1885, p. 31. 

 Niagaran: Lyons, Iowa. 



Arctinurus occidentalis (Hall). 



Lichas boltoni Worthen and Meek, Geol. Surv. Illinois, 6, 1875, p. 508, pi. 25, fig. 5. 



Lichas boltoni var. occidentalis Hall, Trans. Albany Inst., 4, 1864, p. 223; 28th 

 Rep. New York State Mus. Nat. Hist. (doc. ed.), 1877, pi. 34, figs. 8-11; 

 (mus. ed.), 1879, p. 198, pi. 34, figs. 8-11; 11th Rep. Dep. Geol. Nat. Hist. 

 Indiana, 1882, p. 344, pi. 36, figs. 8-11, 12.— Lesley, Geol. Surv. Pennsylva- 

 nia, Rep. P 4, 1889, p. 335, fig.— Foerste, Proc. Boston Soc. Nat. Hist., 24, 

 1890, p. 272. 



Arctinunis occidentalis Weller, Bull. Chicago Acad. Sci., Nat. Hist., Surv., 4, 

 pt. 2, 1907, p. 247, pi. 20, figs. 10-12.— Grabau and Sliimer, N. A. Index Fos- 

 sils, 2, 1910, p. 308, fig. 1621a. 



