922 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Orthodesma subangulatum Ulrich. 



Orthodesma subangulatum Ulrich, Geol. Surv. Ohio, 7, 1893, p. 660, pi. 55, figs. 



21-23. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res., Indiana, 1908, p. 1015, 



pi. 47, figs. 7, 7a. 



Richmond (Whitewater): Richmond, Indiana. 

 Cotypes.G&t. No. 46275, U.S.N.M. 



Orthodesma subcarlnatum Ruedemann. 



Orthodesma? subcarinatum Ruedemann, Bull. New York State Mus., 162, 1912, 



p. 96, pi. 5, figs. 5-8. 

 Trenton (Snake Hill): Snake Hill, Saratoga County, New York. 



Orthodesma subnasutum (Meek and Worthen). 



Modiolopsis subnasuta Meek and Worthen (not Hall, 1860), Proc. Philadelphia 



Acad. Nat. Sci., 1870, p. 41; Geol. Surv. Illinois, 6, 1875, p. 494, pi. 23, 



fig. 9a-b. 

 Orthodesma subnasutum Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 518, pi. 36, 



figs. 23 and 24. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 380, 



fig. 482b-c. 

 Orthodesma cf. subnasutum Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, 



p. 135, pi. 1, fig. 11. 

 Modiolopsis carrollensis Worthen, Bull. Illinois State Mus. Nat. Hist., 1, 1882, 



p. 38. 



Trenton: Carroll County and Dixon, Illinois (Galena); Rogers Gap, Kentucky(?). 

 Pleiriotype.C&t. No. 46276 U.S.N.M. (Ulrich). 



ORTHODESMA SUBOVALE Ulrich. See Psiloconcha subovalia. 



ORTHODESMA TENUISTRIATUM Miller. See Psiloconcha tenuistriata. 



ORTHODONTISCUS Meek. See Cycloconcha Miller. 



ORTHOGRAPTUS AMH Lapworth. See Glossograptus (Orthograptus) quadrimucronatus. 



ORTHOGRAPTUS BASILICUS Lapworth. See Diplograptus basilicus. 



ORTHOGRAPTUS QUADRIMUCRONATUS Ami. See Glossograptus (Orthograptus) quad- 

 rimucronatus. 



ORTHONEMA NEWBERRYI Meek. See Acanthonema newberryi. 

 ORTHONOM^EA Hall. See Zygospira Hall. 

 ORTHONOTA (part) Conrad. See Cymatonota Ulrich. 



ORTHONOTA Conrad. Genotype: O. undulata Conrad, 



Orthonota Conrad, 5th Ann. Rep. New York Geol. Surv., 1841, p. 50. Salter. 

 Mem. Geol. Surv. Great Britain, 2, pt, 1, 1848, p. 359. D'Orbigny, Prodr. 

 Pal., 1, 1849, p. 12. Pictet,Traite de Pal., 2d ed., 3, 1855, p. 571. Emmons, 

 Amer. Geology, 1, pt. 2, 1855, p. 173. Conrad, Amer. Jour. Conch., 2, 1866, 

 p. 103. Hall, Prelim. Notice Lam., pt. 2, 1870, p. 85. Miller, Cincinnati 

 Quart. Jour. Sci., 1, 1874, p. 221. Zittel, Handb. Pal., 2, 1881, p. 129. 

 Barrande, Acephales (Extraits Syst. Sil. Centre Boheme, 6), 1881, p. 198; 

 p. 125. Hall, Pal. New York, 5, pt. 1, Lam. 2, 1885, p. xlv. Bigot, Bull. 

 Soc. Geol. France, 3d ser., 1889, 17, p. 799. Miller, N. A. Geol. Pal., 1889, 

 p. 497. Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 267. Hind, Mon. 

 British Carb. Lam., 1, 1900, Pal. Soc., p. 363. 



Orthonotus McCoy, British Pal. Rocks Foss., 1854, p. 274. Salter, Cat. Camb. 

 and Sil. Foss., 1873, p. 65. Woodward, Man. Mollusca, pt. 2, 1854, p. 26*6. 



