scHuciiERT.] INDEX AND BIBLIOGRAPHY. 217 



Dinorthis retrorsa (Salter) — Continued. 



I'Lesiomys retrorsa Hall and Clarke, Pal. New York, VITI, Pt. I, 1892, pp. 197, 



222, pi. 5 A, figs. 14-16. 

 Loc. England; Oxford, etc., Ohio; Ottawa, Canada. 



Dinorthis subquadrata (Hall). Lorraine (Orel.), 



Orthis sub(iuadrata Hall, Pal. New York, I, 1847, p. 126, pi. 32A, fig. 1;— Geol. 

 Wisconsin, I, 1862, p. 54, ligs. 1, 2.— Meek, Pal. Ohio, I, 1873, p. 94, pi. 9, 

 fig. 2. — Miller, Cincinnati Qnart. Jonr. Sci., II, 1875, p. 38. — White, Second 

 Ann. Rep. Indiana Bureau of .Statistics and GeoL, 1880, p. 484, pi. 1, figs. 

 3-5;— Tenth Rep. St.ate Geol. Indiana, 1881, p. 116, pi. 1. figs. 3-5.— Shaler, 

 Foss. Brachiopoda of the Ohio ^'alley, 1887, p. 22, pi. 7. — Keyes, Geol. Sur- 

 vey Missouri, V, 1895, p. 60. 



? Orthis subquadrata Billings, Geol. Canada, 1863, p. 165, fig. 146. 



Phesiomys subquadrata Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, pp. 

 194, 196, 222, pi. 5A, figs. 17-19. 



Orthis (Dinorthis) subquadrata Winchell and Schuchert, Minnesota Geol. Sur- 

 vey, III, 1893, p. 428, pi. 32, ligs. 46-50.— Whi leaves. Pal. Foss., Ill, Pt. Ill, 

 1897, p. 176. 



Loc. Ohio Valley; Spring Valley, Minnesota ; Wilmington, Illinois; Warren and 

 .Teft'erson counties, Missouri; Lattners, Iowa; Iron Ridge, Wisconsin; Lake 

 Winnipeg, Canada; Anticosti. 



Discina of autbors (uon Lamarck ) = Orbicnloidea. 



Disciua acadica Hartt=Parmoi)liorella acadica, a ^cfistropod. 



Discina allegliania Hall=Orl)iculoidea allegliania. 



Discina ampla Hall ^ Orbicnloidea anipla. 



Discina capax White —^ Orbiculoidea capax. 



Discina capnliformis McChesney=^Orbiculoidea capnliformis. 



Discina circe Billings = Orbicnloidea lainellosa. 



Discina clara Spencer = Schizotreta tenuilaniellata. 



Discina concordensis Sardeson =^ Schizotreta pelopea. 



Discina connata Walcott=Lingulodiscina connata. 



Discina conradi Hall=Orbiculoidea conradi. 



Discina convexa Shumard = Orbiculoidea convexa. 



Discina discus Hall = Orbiculoidea discus. 



Discina doria Hall = Orbiculoidea doria. 



Discina elniira Hall=Orbiculoidoa clinira. 



Discina forbesi Ni;'holson=:r Schizotreta tenuilaniellata. 



Discina gallaheri Winchell =Orbiculoidea gallaheri. 



Discina grandis Yanuxem=li(rmerella grandis. 



Discina grandis nall=OrbicuJ()i(lea ampla. 



Discina luimilis irall=Orbicnloidea hnmilis. 



?Discina inutilis Hall. Upper Cambrian. 



Discina inutilis Hall, Sixteenth Rep. New York State Cab. Nat. Hist., 1863, p. 



130, pi. G, fig. 11 ;— Trans. Albany Institute, V, 1867, p. 108. 

 Loc. Ma/.onianie. Wisconsin. 

 Ohft. Undeterminable. 



Discina illiiioisensis Miller and GurIey=rOrbiculoidea illinoisensis. 

 Discina jervensis Barret=Orbiculoidea jervisensis. 



