BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 67 



Arctinurus occldentalis Continued. 



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

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



ARENICOLA SALTER. See Arenicolites Salter. 



ARENICOLITES Salter. Genotype: Arenicola didyma Salter. 



Arenicola Salter (not Leach), Quart. Jour. Geol. Soc. London, 12, 1856, p. 248. 

 Arenicolites Salter, Quart. Jour. Geol. Soc. London, 13, 1857, p. 204. Nathorst. 



Kongl. 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 sparsus 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.17. 

 Silurian: Europe; Dundas, Ontario (Cataract). 



ARETHUSINA Barrande. Genotype: Arethusa koninckii Barrande. 



Aretlmsa 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. (Ehlert, 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, 

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



Arethusina ainericana Walcott. 



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



fig. 27. Brogger, Geol. Foren. Stockholm Forhandl., 8, 1886, p. 206. 

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

 note. 

 Cambrian and ?Ordovician (Pogonip): Eureka District, Nevada. 



Arethusina argentina Kayser. 



Arethusina argentina Kayser, Beitr. Geol. Pal. Argentinischen Republik, Palseon- 



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

 Ordovician: Quebrada de la Laja, Argentina. 



ARGASTER Hall. See Mesopalseaster Schuchert. 



ARGES ARKANSANA Van Ingen. See Dicranopeltis arkansana. 



ARGES PHLYCTAINODES Hall. See Corydocephalus phlyctainodes. 



ARGES PHLYCTAINODES DEPAUPERATUS Van Ingen. See Corydocephalus depaupe- 

 ratus. 



ARGES TUBERCULATUS Weller. See Corydocephalus tuberculatus. 



ARIONELLUS Barrande. Genotype: A. ceticephalus Barrande. 



Arionellus Barrande, 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, 

 Palacontographica Suppl., 3, 1876, p. 7. Walcott, Science, 3, 1884, p. 281. 



