8CHUCHERT.I INDEX AND I5115LIOGKAPHY. 289 



Orthis macleodi Whitfield = D;ilinaiiella macleodi. 



Orthis macrior Sardes()ii = l)aliiianollii testudiiiaiia eiiiacerata. 



Ortbis media yiialer=lJhi|)idomella media. 



Orthis media IS". H. Wiiicliell = l)almaiiella sul)a'(|uata pervetus. 



Oitliis meek! ^liller— Dalmanella testiidiiiaria meeki. 



Orthis menapiae Hicks. Calciferous (Ord.). 



Orthis nienapiii' (Hicks MS.) Davidson, Geol. Mag. Lonilou, V, 1868, p. 314, pi. 

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

 figs. 2-6. 



Lor. Euyiand; near St. .lolius, New Brunswick. 



Orthis meiope Billiiif>s=Scenidinm merope. 



Orthis raicheliiii L'Rveilh'; = lihii)idomella michelini. 



Orthis michelini Meek, 1877 = Rliipidomella iievadaeusis. 



Ortliis michelini burlingtonensis Hall = Khipid()mella burliugtoneus'is. 



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



Orthis niinua Billings, Pal. Fossils, I, 186.^, p. 303, fig. 294. 

 Loc. Stanbridge, Quebec, Canada. 



Orthis minneapolis N. H. Winchell=Dalmanella subaiquata. 

 Orthis minnesotensis Sardeson = Din«)rthis 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 (noii Shuniard)=Rhipid<)mella missouri- 

 ensis. 

 Orthis mitis Hall=Rhii)idomella mitis. 

 Orthis morganiana Derby=Orthotichia morganiana. 

 Orthis (?) morrowensis James. Lorraine (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 = Schizoplioria multistriata. 

 Orthis musculosa Hall = Rhipidomella musculosa. 



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



Orthis mycale Billings, Pal. Fossils, I, 1862, p. 82, fig. 75.— Hail :md Clarke. Pal. 



New York, VIII, Pt. 1, 1892. p. 217, pi. 7A, figs. 10, 11. 

 Loc. Point Levis, Canada. 



Orthis neglecta James=Plectorthis dichotoma. 

 Orthis nettoana Eathbun = Dalmauella nettoana. 

 Orthis nevadensis Meek = Khipidomella nevadaensis. 



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, ])!. 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 nall = Amboc(clia umbonata. 

 Orthis oblata Hall=Khipidomella oblata. 

 Bull. 87 19 



