DESCRIPTIONS OF SPECIES. 365 



1854. Produclus cora. Norwood and Pratten, Acad. Nat. Sci. Philadelphia, Jour., (2), vol. 3, p. 6. 

 (Entire volume appeared in 1855.) 

 Mountain limestone: Chester, Rosiclare, and Warsaw, 111.; near Richmond, Mo. ; Carrsville, Ky. 



1854. Produclus prciUenianus. Norwood, Acad. Nat. Sci. Philadelphia, Jour., (2), vol. 3, p. 17, pi. 1, 



figs. lOa-d. (Entire volume appeared in 1855. ) 

 Coal Measures: Crossing of Big Nemahaw River, about 85 miles northwest of St. Joseph, Mo. 



1855. Produclus com. Salter, Belcher's "Last of the Arctic Voyages," p. 387, pi. 36, fig. 12. 

 Carboniferous: Top of Exmouth Island. 



1855. Produclus lyelli. Dawson, Acadian Geolog)', p. 219, fig. g. 

 Lower Carboniferous limestone: Nova Scotia. 



1858. Produclus cora. Marcou, Geol. North America, p. 45, pi. 6, figs. 4, 4a. 



Mountain limestone: Tigeras Canyon of San Antonio; Pecos Village; summit of Sierra de Sandia, 

 New Mexico. 



1859. Produclus prattenianus. Meek and Hayden, Acad. Nat. Sci. Philadelphia, Proc, p. 26. 

 Coal Measures: Indian Creek and Leavenworth, Kans. 



1863. Produclus cora. Davidson, Geol. Soc. London, Quart. Jour., vol. 19, p. 174, pi. 9, figs. 22, 23. 

 Lower Carboniferous limestone: Windsor, Horton Bluff, Shubenacadie, Gays River, Cape 

 Breton, Pugwash, eastward of Cumberland, Lennox Passage, McKenzie's Mill, at eastern 

 extremity of Wallace Harbor, etc.. Nova Scotia. 

 1866. Produclus femingi Geinitz, Carh. und Dyas in Nebraska, p. 52, tab. 4, figs. 1^. (Not P. 

 flemingi de Koninck. ) 

 Upper Coal Measures: Bellevue, Plattsmouth, and Nebraska City, Nebr. 

 1866. Produclus koninckiaiius'! Geinitz, Carb. und Dyas in Nebraska, \t. 53, tab. 4, fig. 5. (Not P. 

 koninckianus de Verneuil. 

 Upper Coal Measures: Nebraska City, Bennett's Mill, Nebr. 

 1866. Produclus calliounianus. Geinitz, Carb. und Dyas in Nebraska, p. 53. (Not P. calhounianus 

 Swallow). 

 Upper Coal Measures: Diamond Spring, Santa Fe, in Kansas. 

 1866. Produclus corn. Geinitz, Carb. und Dyas in Nebraska, p. 50. 



Carboniferous limestone and shales: Germany, Belgium, England, Ireland, Spain, Russia, 

 North America, Bolivia, etc. Belleview, Plattsmouth, Nebr. 



1868. Produclu.'i cora. Dawson, Acadian Geology, p. 297, figs. 98a, b. 



Carboniferous limestone: Windsor, Horton Bluff, Shubenacadie, Gays River, Minudie, Cape 

 Breton, Pugwash, east coast of Cumberland, Lennox Passage, McKenzie's Mill, Wallace 

 Harbor, etc.. Nova Scotia. 



1869. Produclus cf. cora. Toula, Sitzb. der Kais. Akad. der Wissensch, Wien, 1 Abth., vol. 59, 



p. 441. 

 Carboniferous limestone: 10 miles from Cochabamba, Bolivia. 

 1872. Produclus prattenianus. Meek, U. S. Geol. Surv. Nebraska, p. 163, pi. 2, figs. 5a-c; pi. 5, fig. 13; 

 pi. 8, figs. 10a, b. 

 Upper Coal Measures: Nebraska City, Bennetts Mill, Cedar Bluff, Plattsmouth, Bellevue, and 



Omaha, Nebr.; Kansas, Iowa, Illinois. 

 Lower Coal Measures: Illinois. 

 1874. Produclus cora (?). Derby, Cornell Univ., (Science) Bull., vol. 1, No. 2, p. 49, pi. 2, fig. 17; 

 pi. 6, fig. 17. 

 Coal Measures: Itaituba and Barreirinha, Brazil. 



