1154 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Scolithus linearis Continued. 



Arenicolites (linearis?) Salter, Mem. Geol. Surv. Great Britain, 3, 1866, p. 292, 

 pi. lib, fig. 27; ibid., 2d ed., 1881, p. 484, pi. lib, fig. 27. 



Cambrian and ?Lo\ver Ordovician: Pennsylvania, New York, Virginia, Wiscon- 

 sin, Canada, etc. 



SCOLITHUS LINEARIS James. See Scolithus dispar. 



Scolithus mlnnesotensis James. 



Arenicolites sp. Winchell, Geol. Minnesota, 1, 1884, pp. 656, 657. 



Scolithus minnesotense J. F. James, Bull. Geol. Soc. Amer., 3, 1892, p. 41; 



Jour. Cincinnati Soc. Nat. Hist., 17, 1895, p. 134. 

 St. Peter: Rice County, Minnesota. 



Scolithus minutus Brainerd and Seely. 



Scolithus minutus (Wing) Brainerd and Seely, Bull. Geol. Soc. Amer., 1, 1890, p. 



504. J. F. James, Bull. Geol. Soc. Amer., 3, 1892, p. 38, figs. 9, 10. 

 Canadian (Beekmantown): Vermont. 



Scolithus tuberosus Miller and Dyer. 



Scolithus tuberosus Miller and Dyer, Cont. to Pal., No. 2, 1878, p. 5, pi. 4, fig. 4. 



J. F. James, Bull. Geol. Soc. Amer., 3, 1892, p. 39, fig. 11. 

 Maysville (Mount Hope) : Cincinnati, Ohio, and vicinity. 



Scolithus verticalis Hall. 



Fucoides verticalis Hall, Geol. New York, Rep. 4th Dist., 1843, p. 242. 

 . Scolithus verticalis Hall, Pal. New York, 2, 1852, p. 6, pi. 2, fig. 3. Nicholson 

 and Hinde, Canadian Jour., n. s., 14, 1874, p. 138. Nicholson, Rep. Pal. 

 Prov. Ontario, pt. 2, 1875, p. 40, fig. 16. J. F. James, Bull. Geol. Soc. Amer., 

 3, 1892, p. 34. Bassler, Bull. Virginia Geol. Surv., 2a, 1909, pi. 8, fig. 3. 

 Scolithus clintonensis James, Bull. Geol. Soc. Amer., 3, 1892, p. 33, footnote, p. 35, 



fig. 5. 

 Upper Medinan: Monroe County, New York, etc. 



SCOLITHUS WOODI Whitfield. See Arenicolites woodi. 

 SCYPHIA DIGITATA Owen. See Brachiospongia digitata. 



Scyphia stellata Troost. Not recognized. 



Scyphia stellata Troost, 5th Geol. Rep. Tennessee, 1840, p. 74. 

 Silurian: Perry County, Tennessee. 



SCYPHOCRINUS Hall. See Cupulocrinus D'Orbigny. 

 SCYPHOCRINUS HETEROCOSTALIS Hall. See Cupulocrinus heterocostalis. 

 SCYPHOCRINUS NODOSUS D'Orbigny. See Schizocrinus nodosus. 

 SCYPHOCRINUS STRIATUS D'Orbigny. See Schizocrinus striatus. 



SEDGWICKIA McCoy. Genotype: S. attenuata McCoy. 



Sedgwickia McCoy, Syn. Char. Carb. Foss. Ireland, 1844, p. 61. Woodward, 

 Man. Mollusca, pt. 2, 1854, p. 322. Meek and Hayden, Pal. Up. Missouri, 

 Smiths. Contr. Knowl., 172, 14, 1865, p.38. Zittel, Handb. Pal., 2, 1881, p. 

 129. Miller, N. A. Geol. Pal., 1889, p. 511. Hind, Mon. British Carb. Lamelli- 

 branchiata, 1, Pal. Soc., 1899, p. 277. Cumings, 32d Ann. Rep. Dep. Geol. 

 Nat. Res. Indiana, 1908, p. 984. 



SEDGWICKIA Whitfield. See Rhytimya Ulrich. 



