BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 997 



Plectambonites saxeus (Sardeson). 



Leptsena saxea Sardeson, Minnesota Acad. Nat. Sci., 3, 1892, p. 330, pi. 4, figs. 



33-35. 

 Richmond (Maquoketa): Bristol, Minnesota. 



Plectambonites sericeus (Sowerby). 



Leptsena sericea Sowerby, Murchison's Sil. Sys., 1839, pi. 19, figs. 1, 2. — Hall, 

 Pal. New York, 1, 1847, pp. 110, 287, pi. 31B, fig. 2; pi. 79, fig. 3; ibid., 2, 

 1852, p. 59, pi. 21, fig. 1— Billings, Canadian Nat. Geol., 1, 1856, p. 41, fig. 

 2. — Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 818, fig. 599. — Emmons, 

 Man. Geology, 1860, p. 99, fig. 88.— Hitchcock, Geol. Vermont, 1, 1861, p. 

 294, fig. 200.— Chapman, Canadian Jour., n. s., 7, 1862, p. 112, fig. 97; ibid., 

 8, 1863, p. 205, fig. 204.— Billings, Geol. Canada, 1863, p. 163, fig. 139 — 

 Chapman, Expos. Min. Geol. Canada, 1864, p. 166, fig. 97; p. 177, fig. 204 — 

 Safford, Geol. Tennessee, 1869, p. 275, fig. 1. — Davidson, Mon. British Sil. 

 Brach., Pal. Soc, 1871, p. 323, pi. 48, figs. 10-19— Meek, Pal. Ohio, 1, 1873, 

 p. 70, pi. 5, fig. 3. — Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 57. — 

 ?White, Wheeler's Expl. Surv. west of 100th Merid., 4, 1875, p. 70, pi. 4, 

 fig. 7.— Kayser, Pal. Suppl., 3, 1876, p. 21, pi. 3, fig. 19— Hall, 2d Ann. 

 Rep. New York State Geol., 1883, pi. 46, figs. 25-29— Chamberlin, Geol. 

 Wisconsin, 1, 1883, p. 155, fig.— Hall, 35th Rep. New York State Mus. Nat, 

 Hist., 1884, pi. 22, fig. 3.— Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1889, 

 p. 328, figs— Miller, N. A. Geol. Pal., 1889, p. 348, fig. 570— Foerste, Proc. 

 Boston Soc. Nat. Hist., 24, 1889, p. 293.— Keyes, Geol. Surv. Missouri, 5, 

 1895, p. 75, pi. 39, fig. 9.— Kayser, Zeit. d. d. geol. Gesell., 49, 1897, p. 283. 



Strophomena sericea Conrad, 3d Ann. Rep. Geol. Surv. New York, 1840, p. 201. — 

 Emmons, Geol. New York, Rep. 2d Dist., 1842, p. 294. — Owen, Amer. Jour. 

 Sci. and Arts, 47, 1844, p. 366, fig. 1, p. 369; Geol. Expl. Iowa, Wisconsin, 

 Illinois, 2d ed., 1844, p. 84, pi. 17, fig. 5. — Emmons, Amer. Geology, 1, pt. 2, 

 1855, p. 199, pi. 11, figs. 6a-f. 



Strophomena semiovalis Vanuxem, Geol. New York, Rep. 3d Dist., 1842, p. 47. 



Plectambonites sericea Shaler, Mem. Surv. Kentucky, 1, 1876, p. 28. — Hall and 

 Clarke, Pal. New York, 8, pt. 1, 1892, pi. 15, figs. 25-29.— Winchell and 

 Schuchert, Minnesota Geol. Surv., 3, 1893, p. 414, pi. 32, figs. 10-12.— 

 Whit eaves, Pal. Foss., 3, pt. 3, 1897, p. 174.— Grabau, Bull. Buffalo Soc. 

 Nat. Sci., 7, 1901, p. 183, fig. 89; Bull. New York State Mus., 45, 1901, p. 183, 

 fig. 89.— Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 149, pi. 9, figs. 14, 

 15; p. 216, pi. 16, figs. 2, 3.— Grabau and Shinier, N. A. Index Fossils, 1, 1907, 

 p. 227, fig. 274a-b.— Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 

 1908, p. 922, pi. 36, figs. 1-lc— Bassler, Bull. Virginia Geol. Surv., 2a, 1909, 

 pi. 14, figs. 1, 2. 



Plectambonites cf. sericeus Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. 

 Res. Indiana, 1904, p. 431, pi. 2, fig. 22. 



Plectambonites sericeus typus Ruedemann, Bull. New York State Mus., 162, 

 1912, pi. 4, figs. 3-6 (var. jugata suggested in case distinct). 



Mohawkian and Cincinnatian : England; various localities in the United States 

 and Canada. 

 Observation. — The above citations undoubtedly refer to several distinct species. 



Plesiotypes.— Cat. No. 8552, U.S.N.M. (White). 



Plsctambonites sericeus var. asper Ruedemann. See Plectambonites rugosus. 

 Plectambonites sericeus typus Ruedemann. See Plectambonites sericeus. 

 Plectambonites tenera Shaler. See Plectambonites transversalis. 



