BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 67 



Arctiniirus occidentalis — Continued. 



Niagaran: Waldron, Indiana, and Newsom, Tennessee (Waldron); Grafton, Joliet, 

 and Bonfield, Illinois; Cumberland Gap, Tennessee (Clinton). 



Arenicola Salter. See Arenicolitee Salter. 



ARENICOLITES Salter. Genotype: Arenicola didyma Salter. 



Arenicola Palter (not Leach), Quart. Jour. Geol. Soc. London, J 2, 1856, p. 248. 

 Arenic;olites Salter, Quart. Jom*. Geol. Soc. Ivondon, 13, 1857, p. 204.— Natliorst. 

 Kougl. Sven. Vet.-Akad. Handl., 18, No. 7, 1881, p. 49.— Whitfield, Geol. 

 Wisconsin, 4, 1882, p. 177.— Miller, N. A. Geol. Pal., 1889, p. 517. 



Arenicolites (Scolithus) linearis. See Scolithus linearis. 



Arenicolites sparsiis Salter. 



Arenicolites sparsus Salter, Quart. Jour. Geol. Soc. London, 13, 1857, p. 203. — 



Nicholson and Hinde, Canadian Jour., n. s., 14, 1874, p. 138. — Nicholson, 



Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 41, fig.l7. 

 Silurian: Europe; Dundas, Ontario (Cataract). 



ARETHL'SINA Barrande. Genotype: Arethusa koninckii Barrande. 



Arethusa Barrande, Notice Prel., Syst. Sil. Boheme, 1846, p. 48. 



Arethusina Barrande, Neues Jahrb. f. Min., etc., 1850, p. 780; Syst. Sil. du Cen- 

 tre Boheme, 1, 1852, p. 493.— Pictet, Traite de Pal., 2d ed., 2, 1854, p. 498.— 

 Barrande, Neues Jahrb. f. Min., Geol. Pal., 1868, p. 257.— CEhlert, Bull. Soc. 

 d'Etudes Sci. d'Angers, 1885, p. 4.— Zittel, Handb. Pal., 2, 1885, p. 624.— 

 Beecher, Amer. Jour. Sci., 3d ser., 46, 1893, p. 143; Amer. Geol., 16, 1895, 

 pp. 167, 176. — Koken, Die Leitfossilien, Leipzig, 1896, p. 24. — Lindstrom, 

 Kongl. Sven. Vet.-Akad. Handl., 34, No. 8, 1901, p. 32. 



Arethiisina americana Walcott. 



Arethusina Americana Walcott, Mono. U. S. Geol. Surv-., 8, 1884, p. 62, pi. 9, 

 fig. 27.— Brogger, Geol. Foren. Stockholm Forhandl., S, 1886, p. 206. 

 Harpides? americanus Freeh, Leth. geog., Th. 1, Leth. Pal., 2, 1897, p. 44, foot- 

 note. 

 Cambrian and VOrdoviciau (Pogoiup): Eureka District, Nevada. 



Arethusina argentina Kayser. 



Arethufsina argentina Kayser, Beitr. Geol. Pal. Argentinischen Eepublik, Palaeon- 



tographica Supp., 3, 1876, p. 12, pi. 2, fig. 2. 

 Ordovician: Quebrada de la Laja, Argentina. 



Argaster Hall. See Meyopalseaster Schuchert. 



Arges arkansana Van Ingen. See Dicranopeltis arkansana. 



Arges phlyctainodes Hall. See Corydocephalus phlyctainodes. 



Arges phlyctainodes depaupkratus ^'iu^ Ingen. See Corydocephalus depaupe- 

 ratus. 



Argks tuberculatus Weller. See Corydocephalus tuberculatus. 



ARIONELLUS Barrande. Genotype: A. ceticephalus Barrande. 



Arionellus Ban-ande, Neues Jahrb. f. Min., etc., 1850, p. 779; Syst. Sil. du Centre 

 Boheme, 1, 1852, p. 404, pi. 10.— Pictet, Traite de Pal., 2d ed., 1854, 2, p. 491.— 

 Billings, Canadian Nat. Geol., 5, 1860, p. 313; Pal. Foss., 1, Geol. Surv. 

 Canada, 1865, p. 405. — Kayser, Beit. Geol. Pal., Argentinischen Republik, 

 Palaeontographica Suppl., 3, 187G, p. 7. — Walcott, Science, 3, 1884, p. 281. — 



