322 PALJUONTOLOGY OF NEW YORK. 



ISSS. Productus, Hall. Geol. Survey Iowa, vol. i, part 2, pp. 635-639, 674, 67."), 712, pi. xii, fig. 3; 



pi. xix, figs. 1-4; pi. xxiv, tigs. 1-3; pi. xxviii, figs. 3-4. 



1858. Productus, Hall. Trans. Albany Inat., vol. iv, pp. 12, 13. 



1S58. Productus, Swallow. Trans. St.. Louis Acail. Sci., vol i, pp. 181, 1S2, 215-217. 



1858. Productus, Shumard. Trans. St. Louis Acad. Si;i., vol. i, pp. 290-292, pi. xi, tig. 8. 



1858. Productus, Rogers. Geol. Penna , vol. ii, part 2, j). 833. 



1858. Produet'us, Makcou. Geology Noi-th Aniei-ica, pp. 45-48, pi. v, tigs. 3-6 ; pi. vi, tiga. 1, 3-7, 12. 



1859. Productus, Mkek and Haydkn. Proc. Acad. Nat. Sci. Phila,, pp. 25, 26. 



1860. Productu.'S, Meek. Proc. Acad. Nat. Sci. Phila., vol. xii, ]i. 309. 

 1860. Productus, Meek and Worthen. Ibidem, pp. 450, 451. 



1860. Productxis, Worthkn. Trans. St. Louis Acad. Sci., vol. i, p. 570. 



1860. Productus, White. Joum. Boston Soc. Nat. Hist., p. 230. 



1800. Producing, Swallow. Trans. St. Louis Acad. Sci., vol. i, pp. 640, 641. 



1860. Productus, McChbsnky. Desci-ip. New Species Palaeoz. Foss., jip. 34-40. 



1861. Productus, Salter. Quart. Jour. Geol. Soc. Lond., vol. xvii, p. 64. 



1861. Productus, Newberry. Ives' Rept. Expl. Colorado River of the We.st, pp. 121-125, pi. i, tig. 7 ; 



pi. ii, tigs. 1-10. 



1861. Productus, Meek & Worthen. Proc. Acad. Nat. Sci. Phila., p. 142. 



1862. Productus, White. Proc. Bost. Soc. Nat. Hist., vol. ix, p. 29. 



1863. Productus, Swallow. Trans. St. Louis Acad. Sci., vol. ii, pp. 91-94. 



1863. Producta, A. Winchell. Proc. Acad. Nat. Sci. Phila., vol. xv, ]). 4. 



1864. Productus, Meek. Paleontology of California, vol. i, p. 11, pi. ii, fig. 4. 



1865. Productus, A. Winchell. Proc. Acad. Nat. Sci. Phila., pp. 112-115. 



1866. Productus, Geinitz. Carbon and Dyas in Nebraska, pp. 52, 54, 81, pi. iv, figs. 1-11. 



1866. Productus, Meek & Worthkn. Geol. Surv. Illinois, vol. iii, pp. 280, 297, 320, pi. xx, fig. 5 ; pi. 



xxiii, tig. 4 ; pi. xxvi, tig. 4. 



1867. Productus, Hall. PaliEontology New York, vol. iv, ]>. 146. 



1867. Productus, Hall. Twentieth Rept. N. Y. State Cab. Nat. Hist , p. 245. 



1868. Productu.?, McChbshby. Trans. Chicago Acad. Sci., vol. i, pp. 24-27, pi. i, figs. 7-11; pi. vi, fig. 1. 

 1868. Productus, Meek & Worthen. Geol. Surv. Illinois, vol. iii, p. 528, pi. xx, fig. 7. 



1870. Producta, A. Winchell. Proc. American Philos. Soc, vol. xii, p. 249. 



1871. Productus, Meek. Paleontology Eastern Nebraska, pp. 1.59-169, pi. i, fig. 14; pi. ii, figs. 2, 5, 



6 ; pi. iv, figs. 5, 6 ; pi. v, figs. 6, 7, 11, 13 ; pi. vi, figs. 6, 7 ; pi. viii, tigs. 

 6, 9, 10, 13. 

 1873. Productus, Worthen. Geol. Surv. Illinois, vol. v, p. 569 ; pi. xxv, tig. 9. 



1873. Productus, Meek &. Worthen. Ibidem, p. 569, pi. xxv, tigs. 8, 10, 13. 



1874. Productus, Derby. Bull. Cornell Univ., vol. i, pp. 47, 49, 51, 54, 56, 59, pi. i, figs 2, 10-13, 15 ; 



pi. ii, tigs. 14, 17; pi. iii, tigs. 20, 41-44, 46-49; pi. iv, figs. 1-4, 7-11, 13, 

 16; pi. vi, figs. 1, 4-7, 9, 17, 18; pi. vii, tigs. 5-7, 15, IG; pi. ix. figs. 12, 13. 



1875. Productus, Mkek. Pal.<contology Ohio, vol. ii, p. 282, 283, pi. x, tigs. 3, 4. 



1875. Productus, White. Wheeler's Geogr. and Geol. Surv. west 100th meridian, pp. 83, 109-116, 120. 



pi. V, tig. 6 ; pi. vii, figs. 1. 2 ; pi. viii, tigs. 1-6. 



1876. Productus, Mebk. Bull. U. S. (ieol and Geogr. Surv. Terr., vol. ii, p. 354, pi. i, fig. 1. 

 1876. Productus, Dbrhy. Bull. Mus. Coinp. Zool., vol. iii, pp. 280, 281. 



1876. Productus, Newberry. Rept. Macomb's Expl. Exped. from Santa Fe to junction of Grand and 



Green Rivei's of the Great Colorado of the west. 



1877. Productus, Hall & Whitfield. U. S. Geol. Expl. 40th Parallel, vol. iv, pp. 265-268, pi. v, 



figs. 3-12. 



1877. Productus, Meek. Ibidem, pp. 64-67, 69, 72-76, pi. vii, tigs. 3-8 ; pi. viii, figs. 2-4. 



1878. Productus, Dawson. Acadian Geology, third ed., pp. 296, 297. 



1880. Productu.1, White. Pi-oc. U. S. Nat. Mus., p. 46. 



1881. Productiui, White. Tenth Ann. Rejit. Indiana State Geologist, p. 148, pi. viii, figs. 7, 8. 



