SCHnCHEUT. 



INDEX AND BIBLIOGRAPHY. 327 



Productus uiartini Sowerby=Productus semireticulatus. 



Productus mesialis Hall. Keokuk (L. Carb.). 



Productus niesitilis IliiU, Gool. Sur\Liy Iowa, I, I't. II, 1858, p. iVM), pi. 11), liy. 2; — 

 Second Ann. Kep. N. Y. 8t:ito Gool., 188;^, j)!. 19, figs. !», 10.— Hall and Clarke, 

 Pal. New York, VIII, I't. I, 1892, pi. 18, life's. 9. 10. 



Loc. Keokuk, Iowa; Nauvoo, Illinois. 



Ohs. Kcyes rcfjjards this species its identical with 1'. liurliiijitouensis. 



Productus mesolobus Phillii)s. Carboniferous. 



Productus uiesoloba Phillii)s, Geol. Yorkshire, II, 1836, p. 215, pi. 7, ligs. 12, 13. 

 Productus mesolobus Etheridije, Quart. Jour. Geol. Soc. Loudon, XXXIV, 1878, 

 p. 630. 



Loc. f^urope; Feildeii Isthmus, hit. 82^' 43'. 



Productus mexicoanus Shumard. Upper Carboniferous. 



Productus uiexicanus Shunuvrd, Trans. St. Louis Acad. Sci., I, 1858, p. 291. — 



Ivayser, Richthofeus China, IV, 1883, p. 182, pi. 28, iiy. 7. 

 Productus mexicanus? White, Wheeler's Expl. and Survey west 100th Meridian, 



IV, 1875, p. 120, pi. 8, iig. 6. 



Loc. Guadalupe Mountains, New Mexico; Lincoln County, Nevada; Lo-Ping, 

 China. 



Productus morbillianus A. Winchell. Burlington (L. Carb.). 



Produita morbilliana A. Winchell, Proc. Acad. Nat. Sci. Philadelphia, 1865, 



p. 113. 

 Loc. Burlington, Iowa; Scioto\ille. Ohio. 



Productus multistriatus Meek. Carboniferous. 



Productus niultistriata Meek, Proc. Acad. Nat. Sci. Philadelphia, 1860, p. 309. 

 Productus multistriatus Meek,' Simpson's Rep. Expl. Great Basin Terr. Utah, 



1876, p. 350, pi. 1, Iig. 8;— King's U. S. Geol. Expl. lOth Pari., IV, 1877, p. 76, 



pi. 8, fig. 3. 

 Loc. Utah and Nevada. 



Productus muricatus Norwood and Pratten. Upper Carboniferous. 



Productus muricatus Norwood and Pratten (nou Phillips), Jour. Acad. Naf . Sci. 

 Philadelphia, III, 1854, j). 14, pi. 1, fig. 8.— White, Wheeler's Expl. and Sur- 

 vey west 100th Meridian, IV, 1875, p. 120, pi. 8, fig. 4.— Herrick, Bull. Denison 

 Univ., II, 1887, p. 49.— Keyes, Proc. Acad. Nat. Sci. Philadelphia, 1888, p. 228. 



Loc. Pike County, Illinois; near Richmond, Missouri ; Des Moiaies Valley, Iowa; 

 Flint Ridge, Ohio; Lake County, Colorado; northern New Mexico. 



Ohs. Since Phillips's I*, muricatus is regarded as a synonym for P. costatus, there 

 is no need for another specific name for Norwood and Pratten species. 



Productus nanus Meek and Wortlieu. Upper Carboniferous. 



Productus nanus Meek and Wortheu, Proc. Acad. Nat. Sci. Philadelphia, 1860, 

 p. 450 ; — Geol. Survey Illinois, II, 1866, p. 320, pi. 26, fig. 4. — Keyes, Proc. Acad. 

 Nat. Sci. Philadelphia, 1888, p. 227. 



Loo. Jefferson County, Iowa; northern New Mexico (White). 



Productus navicella Hall=Productella navicella. 



Productus nebraskaensis Owen, Upper Carboniferous. 



Productus nebrasceusis Owen, Geol. Rep. Wisconsin, Iowa, and Minnesota, 1852, 

 p. 584, pi. 5, iig. 3.— McChesney, Trans. Chicago Acad. Sci., I, 1868, p. 24, pi. 

 1, fig. 7.— Meek, Final Rep. U. S. Geol. Survey Nebraska, 1872, p. 165, pi. 2, 

 fig. 2; pi. 4, fig. 6; pi. 5, fig. 11.— Meek and Worthen, Geol. Survey Illinois, 



V, 1873, p. 569, pi. 25, fig. 8.— White, Wheeler's Expl. and Survey west 100th 

 Meridian, IV, 1875, p. 116, pi. 8, iig. 3.— Meek, King's U. S. Geol. Expl. 40th 

 Pari., IV, 1877, p. 65.— White, Thirteenth Rep. State Geol. Indiana, 1884, 

 p. 122, pi. 24, figs. 7-9.— Herrick, Bull. Uenison Univ., II, 1887, p. 49, pi. 2, 



