BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 857 



NILEUS Continued. 



Die Leitfossilien, Leipzig, 1896, p. 28. Schmidt, Mem. 1'Acad. Imp. Sci. 

 St. Petersburg, 8th ser., 6, 1898, pp. 11, 45. Beecher, Zittel-Eastman, Textb. 

 Pal., 1, 1900, p. 630. Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 34, No. 

 8, 1901, pp. 26, 61. Schmidt, Mem. 1'Acad. Imp. Sci. St. Petersburg, 8th 

 ser., 14, No. 10, 1904, p. 63. Grabauand Shinier, N. A. Index Fossils, 2, 1910, 

 p. 299. Slocom, Field Mus. Nat. Hist., Geol. Serv., 4, No. 3, 1913, p. 52. 

 Raymond, Trans, and Proc. Roy. Soc. Canada, 5, 3d ser., sec. 4, 1912, p. 116: 

 Zittel-Eastman Textb. Pal., 1913, p. 719. 



Nlleus afflnis Billings. 



Nileus affinis Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 275, fig. 261. 



Raymond, Trans, and Proc. Roy. Soc. Canada, 3d ser., 5, sec. 4, 1912, p. 120, 



pi. 3, fig. 4. 

 Canadian: Cow Head, Newfoundland (Quebec P); Isle of Orleans and Point 



Levis, Quebec. 



Nileus inacrops Billings. 



Nileus macrops Billings, Pal. FOBS., 1, Geol. Surv. Canada, 1865, p. 273, fig. 259. 



Miller, N. A. Geol. Pal., 1889, p. 557, fig. 1034. 

 Chazyan (Quebec N): Table Head, Newfoundland. 



Nileus perkinsi Raymond. 



Nileus perkinsi Raymond, Ann. Carnegie Mus., 7, 1910, p. 69, pi. 18, figs. 7-8; 



7th Rep. Vermont State Geol., 1910, p. 224, pi. 38, figs. 7-8. Perkins, Rep. 



Vermont State Geol., 8th ser., 1912, pi. 18, figs. 7, 8. Raymond, Trans, and 



Proc. Roy. Soc. Canada, 3d ser., 5, sec. 4, 1912, p. 119, pi. 2, fig. 8; pi. 3, 



fig. 1. 

 Chazyan (Valcour): Isle La Motte, Vermont. 



Nileus scrutator Billings. 



Nileus scrutator Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 274, fig. 260. 

 Chazyan (Quebec N, P): Table Head and P. Portland Creek, Newfoundland. 



Nileus striatus Whitfield. 



Nileus striatus Whitfield, Bull. Amer. Mus. Nat. Hist., 9, 1897, p. 184, pi. 5, figs. 



5, 6. Seely, Vermont State Geol., Rep. 7, 1910, pi. 55, figs. 5, 6. 

 Canadian (Beekmantown): Fort Cassin, Vermont. 



Nileus vigilans (Meek and Worthen). 



Asaphus (Isotelus) vigilans Meek and Worthen, Proc. Acad. Nat. Sci. Philadel- 

 phia, 1870, p. 53; Geol. Surv. Illinois, 6, 1875, p. 497, pi. 23, fig. 6. 



Illsenus (Nileus) minnesotensis Foerste, 15th Rep. Geol. Nat. Hist. Surv. Minne- 

 sota, 1886, p. 478, fig. 1. 



Nileus vigilans Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 712, figs. 17-19. 

 Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 173. Grabau and Shimer, 

 N. A. Index Fossils, 2, 1910, p. 299, fig. 1610c, d. Finch, Proc. Iowa Acad. 

 Sci., 11, 1904, p. 179, pi. 14. Slocom, Field Mus. Nat. Hist., Geol. Ser., 4, 

 No. 3, 1913, p. 52, pi. 14, figs. 9-15. 



Richmond (Maquoketa): Carrol and Osage Counties, Illinois; Iowa. 



Black River and Trenton: Minnesota, Baffin Land, etc. 



Plesiotypes.V&t. No. 41913, U.S.N.M. (Clarke). 



NIOBE MACCOYI Freeh. See Dolichometopus maccoyi. 



NIPTERELLA Hinde. Genotype: Calathium? paradoxicum Billings. 



Nipterella Hinde, Quart. Jour. Geol. Soc. London, 45, 1889, p. 144. Rauff, 

 Palaeontographica, 40, 1894, p. 241. 



