catalogup: of trilobites. 289 



('ERAURas Green, 1832; Mouthly Ain. Jour. Geol., vol. 1, p. 560, pi., fig. fi. 

 Men. Tril. N. A., p. 83, cast 33, pi., tig. 10. 



Hal], 1847; Pal. New York, vol. 1, p. 242. 



Syn., Otarion (iu part) Zenk., 1833; Beitriige Nat. Urwelt, p. 44. 



Arges (in part) Goldf., 1843; Neties Jahrbnch fiir Mineral, p. ."). 

 Cyphaspis (iu part) Burm., 1843; Org. Trilobiten, p. 104. 

 Amphion (in part) Portl., 1843; Geol. Siir. LondondeiTy, p. 272. 

 Cyphasph (iu part) McCoy, 1846; Sil. Foss. Ireland, p. 44. 

 Cheirnrtis Beyr., 1846; Unters. Trilobiten, etc., II, p. 3. 

 Eccoptochile Cord., 1847; Prodr., p. 245. 

 Actinopeltes Cord., 1847; Prodr., p. 247. 



Crotalocephalus Salt., 1853; Mem. Geol. Survey United King- 

 dom, decade 7, pi. 2, p. 10. 

 Cyrtometopus Aug., 1854; Pal. Scaud., p. 32. 

 SphcErocoryphe Aug., 1854; Pal. Scaud., p. 65. 

 Pseudophceroxochus Schm., 1881; Kev. Baltic Sil. Tril., p. 130. 

 Nieszhowskia ^chm., 1881; Eev. Baltic Sil. Tril., p. 130. 

 Cheiruruf^ appollo Bill., 1860; Canadian Naturalist, vol. 5, p. 322, 



fig. 28. Point Levis, Quebec. Limestone No. 2. 

 Cheirurus appollo Bill., 1865; Pal. Foss., vol. 1, p. 413, fig. 397. 

 Cheirurtts himucronntus (Murch.) Roemer, Die Sil. Fauna W. Tenu., 

 p. 80, pi. 5, fig. 19. Not Murchison's species. (See CerauriDi 

 niagarensis Hall.) 

 crosotus Lock. (See Acidaspis crosoiun.) 



Cheirurus ervx Bill., 1860; Canadian Naturalist, vol. 5, p. 322, fig. 

 30. Point Levis, Quebec. Limestone No. 2, also Phillipsburgh. 

 Cheirurm ERYX Bill., 1865; Pal. Foss., vol. 1, p. 413, fig. 399. 

 CheiruruH glaucus Bill., 1865; Pal. Foss., vol. 1, p. 323, fig. :K)8. 



Staubridge Range 6, lot 20, Canada. 

 Cheirurus icarcs Bill., 1860; Canadian Naturalist, vol. 5, p. 67, fig. 

 14. Anticosti. Hudson. 



Cheirurus icaru.s Bill., 1863; Geol. Canada, p. 219, fig. 231. 



ICARU.S Meek, 1873; Pal. Ohio, vol. 1, p. 162, pi. 14, fig. 11 a, b, c. 



ICARUS Miller, 1874; Cincinnati Quart. Jour. Sci., vol. 1, p. 133. 



Cheirurus insionis (Beyr.) Hall, 1852; Pal. New York, vol. 2, p. 300; 

 also p. 306, pi. 67, figs. 9, 10. Not Beyrich's species. 



insignis. (See Ceraurus niagarensis Hall.) 



1 MERCURius Bill, 1865; Pal. Foss., vol. 1, p. 285, fig. 272. Cow Head, 



N.F. 



niagarensis Hall, 1867; 20th Rep. New York State Cab. Nat. Hist., 



p. 376, pi. 21, fig. 10. Wauwatosa, Wis. Niagara. 



niagarensis Hall, 1870; 20th Rep. New York State Cab. Nat. Hist. 



(2d ed.), p. 427, pi. 21, figs. 10, 11. 

 Syn., Sphfrrexochus romingeril Hall; Doc. Ed. 28th Rep. Nev York 

 State Mus. Nat. Hist. Explanation of pi. 32, fig. 16 (erroneous 

 reference). 



