scHucHERT.] INDEX AND BIBLIOGRAPHY. 291 



Orthis plicatella White (non Hall)=Ortliis tricenaria. 



Orthis plicatella Hall=Plectorthis plicatella. 



Orthis i)ogonipensis Hall and Whitfield =Dalmauella pogonipeusis. 



Orthis porcata McCoy =Dinorthis porcata. 



Orthis (?) porcia Billings. Ohazy (Ord.). 



Orthis porcia Billiugs, Canadian Nat. Geol., IV, 1859, p. 439, tigs. 16-18; — Geol. 



Canada, 1863, p. 130, tig. 58. 

 Loc. Near Montreal, Canada. 



Orthis porrecta Sardesou=Dalmaiiella testudiiiaria porrecta. 



Orthis prsemnboua Hall=AmboccBlia prneumbona, 



Orthis pratteni McChesney=Derbya pratteni. 



Orthis praviis Hall=Orthothetes pravus. 



Orthis propinqua Hall = Schizophoria propinqua. 



Orthis propinqua Nettelroth=Schizophoria striatula. 



Orthis (?) pumila Ulrich. Lorraine (Ord.). 



Orthis costata (non Sowerby) Hall, American Jonr. .Sci., XLVIII, 1845, p. 295. — 



Miller, Cincinnati Quart. Jour. Sci., II, 1875, p. 33. 

 Orthis pumila Ulrich, Catalogue Cincinnati Fossils, 1880, p. 14. 

 Orthis cincinnatiensis Miller, American Pal. Fossils, 2d ed., 1883, p. 296. 

 Loc. Cincinnati, Ohio. 



Orthis (?) punctostriata Hall. Niagara (Sil.). 



Orthis punctostriata Hall, Pal. New York, II, 1852, p. 254, pi. 52, fig. 5. 

 Orthis? punctostriata Hall and Clarke, Ibidem, VIII, Pt. I, 1892, p. 217, pi. 20, 



figs. 2-4. 

 Loc. Lockport, New York. 



Orthis pyramidalis Hall=Scenidiam pyramidalis. 



Orthis quacoensis Matthew =Billiugsella quacoensis. 



Orthis quadrans Hall=Dalmauella quadrans. 



Orthis quadricostata Vaiiiixem=Leiorhynchus qiiadricostatum. 



Orthis(?) remnicha l!^^. H. Winchell. Upper Cambrian. 



Orthis remnicha N. H. Winchell, Fourteenth Ann. Rep. Geol. Nat. Hist. Survey 



of Minnesota, 1886, p. 317, pi. 2, fig. 7. 

 Loc. Red Wing, Minnesota; Cold Creek Canyon, Burnett County, Texas. 



Orthis resupinata Hall, 1843 (non Martin) = Schizophoria tulliensis. 



Orthis resupinata Martin = Schizophoria resupinata. 



Orthis resupinata latirostrata Toula=Schizophoria cora. 



Orthis resupinoides Cox=Schizophoria resupiuoides. 



Orthis retrorsa Salter =Dinorthis retrorsa. 



Orthis rhynchonelliforinis Shaler=Rhipidomella rhynchonelliformis. 



Orthis richmonda McChesney=Derbya crassa. 



Orthis robusta Hall=Derbya robusta. 



Orthis rogata Sardeson=Dalmauella testudinaria. 



Orthis (?) rugiplicata Hall and Whitfield. Magara (Sil.). 



Orthis rugicplicata Hall and Whitfield, Twenty-fourth Rep. N. Y. State Cab. Nat. 



Hist., 1872, p. 182 ;— Twenty-seventh Rep. Ibidem, 1875, pi. 9, figs. 1-3.— 



Hall, Second Ann. Rep. N. Y. State Geol., 1883, pi. 34, figs. 25-27!— Nettel- 



roth, Kentucky Fossil Shells, Mem. Kentucky Geol. Survey, 1889, p. 44, pi. 



27, figs. 1-3, 



Orthis rugiplicata. Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, p. 217. 



Loc, Louisville, Kentucky. ' 



