scHucuKKT.] INDEX AND BIBLIOGRAPHY. 321 



Productus carbonarius de Kouiuck. Carbouit'erous. 



Productus ciirbouiirius do Koninck, Description Aniiuanx Fossilos, 1844, p. 181, 

 pi. 12 bis, tig. 1. — Norwood and Pratten, .Jour. Acad. Nat. Sci. Philadelphia, 

 III, 1854, p. 11. 



Loc. Belgium; Fountain Blurt', Illinoia. 



Productus cestriensis Wortbea= Productus fasciculatus. 



Productus chandlessii Derby. Upper Carbouiferous. 



Productus chandlessii Derby, Bull. Cornell Univ., I, 1874, p. 51, pi. 4, tigs. 1-4,7, 



9-11, 13, 16; pi. 6, lig. 1;— Bull. Mus. Comp. Zool., Ill, 1876, p. 280. 

 Loc. Itaituba, Brazil; Yanipoiiata, Bolivia. 

 Ohs. Compare with Productus boliviaeusis d'Orbigny. 



Productus clarkianus Derby. Upper Carbouiferous. 



Productus clarkianus Derby, Bull. Cornell Univ., I, 1874, p. 59, pi. 6. tig. 6; 



pi. 9, tigs. 12, 13. 

 Loc. Itaituba and Bomjardini, Brazil. 



Productus clavus Norwood aud Pratteu=Proboscidella clava. 

 Productus couceutricus Hall=Productella couceutrica. 



Productus confragosus Courad. Upper Oarbouifeious. 



Productus confragosus Conrad, Trans. Geol. Soc. Pennsylvania, I, 1835, p. 268, 



pi. 12, tig. 5. 

 Loc. Alleghany Mountains, Pennsylvania. 

 Ohs. Not well established. 



Productus cooperensis Swallow, Kiuderhook (L. Carb.). 



Productus cooperensis Swallow, Trans. St. Louis Acad. Sci., I, 1860, p. 64C. — A. 



Winchell, Proc. Acad. Nat. Sci. Philadelphia, 1865, p. 115. 

 Productus cooperensis? A. Winchell, Proc. American Philosophical Soc, XII, 



1870, p. 249. 

 Loc. Cooper County, Missouri; Burlington, Iowa; Sciotoville, Ohio. 

 06s. Keyes regards this species as a synonym tor Productella arcuata. 



Productus cora d'Orbigny. Upper Carboniferous. 



Productus cora d'Orbigny, Voyage dans I'Am^riqueMeridionale, Pal., 1842, p. 55, 

 pi. 5, iigs. 8-10. — de Koninck, Recherches sur les Animaux Fossiles, Pt. 1, 1847, 

 p. 50, pi. 4, tig. 4; pi. 5, lig. 2. — Owen, Geol. Rep. Wisconsin, Iowa, and Min- 

 nesota, 1852, pp. 103, 136, 1)1. 5, fig. 1. — Norwood and Pratten, Jour. Acad. 

 Nat. Sci. Philadelphia, III, 1854, p. 6. — Marcou, Geol. North America, 1858, 

 p. 45, pi. 6, tig. 4. — Davidson, Quart. Jour. Geol. Soc. London, XIX, 1863, p. 

 174, pi. 9, figs. 22, 23.— Geinitz, Carbon und Dyas in Nebraska, 1866, p. 50.— 

 Derby, Bull. Mus. Comp. Zool., Ill, 1876, p. 281. — Dawson, Acadian Geology, 

 3d ed., 1878, p. 297, fig. 98.— Waagen, Pala-outologica ludica, Ser. XIII, I, 

 1884, p. 677.— White, Thirteenth Rep. State Geol. Indiana, 1884, p. 126, pi. 

 26, figs. 1-3.— Herrick, Bull. Denisou T'niv., II, 1887, p. 47, pi. 2, fig. 26.— 

 Keyes, Proc. Acad. Nat. Sci. Philadelphia, 1888, p. 227;— Geol. Survey Mis- 

 souri. V, 1895, p. 47, pi. 37, fig. 2. 



Productus cfr. cora Toula, Sitzb. der k. k. Akad. der Wiasensch. zu Wien, LIX, 

 1869, p. 9. 



Productus cora? Derby, Bull. Cornell Univ., I, 1874, p. 49, pi. 2, fig. 17; pi. 6, 

 fig. 17. 



Productus lyelli de Verneuil, Lyell's Travels in North America, II, 1845, p. 221.— 

 Dawson, Acadian Cacology, 1855, ]>. 219, fig. g. 



Productus sp. Christy, Letters on (Jeology, 1848, pi. 5, fig. 1. 

 Bull. 87 21 



