SCHUCHERT.I INDEX AND BIBLIOGRAPHY. 289 



Ortliis macleodi Whitfield =Dalmaiiella macleodi. 



Ortliis macrior Sardeson=Dalinaiiella testudinaria emacerata. 



Orthis media Shaler=Khipidomella media. 



Orthis media IsT. H. Wincliell=l)almanella subfequata pervetus. 



Ortbis meeki Miller=Dalmanella testndiiiaria meeki. 



Orthis menapiae Hicks. Oalciferous (Ord.). 



Ortliis menapiii' (Hicks MS.) Davidson, Geol. Mag. London, V, 1868, p. 314, pi. 



16, figs. 24-28.— Matthew, Trans. Royal Soc. Canada, X, 1893, p. 101, pi. 7, 



figs. 2-6. 

 Loc. England; near St. Jokus, New Brunswick. 



Orthis merope Billings=Scenidiiim merope. 



Orthis raichelini L'fiveill6=Rhipidomella michelini. 



Orthis michelini Meek, 1877=Rhipidomella iievadaensis. 



Orthis michelini burlingtonensis Hall=Rhipidomella burliugtonensis. 



Orthis (?) minna Billings. Oalciferous (Ord.). 



Orthis niinna Billings, Pal. Fossils, I, 1865, p. 303, fig. 294. 

 Loc. Stanbridge, Quebec, Canada. 



Orthis minneapolis N. H. Winche]l=Dalmanella sub?equata. 

 Orthis minnesoteusis Sardeson=Dinorthis meedsi. 



Orthis missouriensis Shumard. Cape Girardeau Limestone (Sil.). 



Orthis missouriensis Shumard, Geol. Rep. Missouri, 1855, p. 205, pi. C, fig. 9. — 



Keyes, Geol. Survey Missouri, V, 1895, p. 60. 

 Loc. Two miles above Cape Girardeau, Missouri. 



Orthis missouriensis Swallow (nou Shumard)=Rhipidomella missouri- 

 ensis. 

 Orthis mitis Hall=Rhipidomella mitis. 

 Orthis morganiana Derby=Orthotichia morganiana, 

 Orthis (?) morrowensis James. Lori-aine (Ord.). 



Orthis (?) morrowensis James, Cincinnati Quart. Jour. Sci., I, 1874, p. 21. 



Loc. Warren County, Ohio. 



Orthis multisecta (James) Meek=Dalmanella multisecta. 

 Orthis multistriata Hall = Scliizophoria multistriata. 

 Orthis musculosa Hall=Rhii)idomella musculosa. 



Orthis (?) mycale Billings. Oalciferous (Ord.). 



Orthis mycale Billings, Pal. Fossils, I, 1862, p. 82, fig. 75.— Hall and Clarke, Pal. 



New York, VIII, Pt. I, 1892, p. 217, pi. 7A, figs. 10, 11. 

 Loc. Point Levis, Canada. 



Orthis neglecta James =Plectorthis dichotoma. 

 Orthis nettoana Rathbun=Dalmanella nettoaua. 

 Orthis nevadensis Meek=Rhipidoniella uevadaeusis. 



Orthis (?) nisis Hall and Whitfield. Niagara (Sil.). 



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

 1872, p. 181 ;— Twenty-seventh Rep. Ibidem, 1875, pi. 9, figs. 4-8.— Nettel- 

 roth, Kentucky Fossil Shells, Mem. Kentucky Geol. Survey, 1889, p. 42, pi. 

 27, figs. 4, 5.— Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, p. 217. 



Loc. Louisville, Kentucky. 



Orthis nucleus Hall = Ambocoelia umbonata. 

 Orthis oblata Hall=Rhipidomella oblata. 

 Bull. 87 19 



