Tlic Fauna of the MaxvUlc Limestone. 367 



1852. Orthis ninhraculum? Owen, Geol. Rept. Wis., Iowa, and Minn., 

 tab. 5, fig. 11. 

 Carboniferous: Missouri River. 

 1852. Orthis arachnoidca. Roemer, Kreid. von Texas, p. 89, tab. 1, figs. 

 9 a, b. 

 Carboniferous : San Saba Valley, Texas. 

 1858. Orthisina crassa. Meek and Hayden, Proc. Acad. Nat. Sci. Phil, 

 p. 261. 

 Coal Measures : Leavenworth, Kansas. 



1858. Orthis crcnistria. Marcou, Geol. North America, p. 49. 

 Mountain limestone : Pecos Village, New Mexico. 



1859. Orthisina crassa. Meek and Hayden, Proc. Acad. Nat. Sci. Phil., 



p. 26. 

 Coal Measures : Leavenworth, Kansas. 



1859. Orthisina unihraculumf Meek and Hayden, Proc. Acad. Nat. Sci. 



Phil., p. 26. 

 Upper Coal Measures : Fort Riley and Cottonwood Creek, Kansas 

 18G0. Orthis lasallensis. McChesney, Desc. New Pal. Foss., p. 32. 

 Upper Coal Measures : Lasalle, Illinois. 



1860. Orthis richmonda. McChesney, Desc. New Pal. Foss., p. 32. 

 Coal Measures : N. W. Richmond, Missouri. 



1860. Orthis pratteni. McChesney, Desc. New Pal. Foss., p. 33. 

 Coal Measures : Charbonier, Missouri. 



1861. Streptorhynchiis iivihraciihim. Newberry, Ives' Colo. Expl. 



Exped., p. 125. 

 Upper Carboniferous (Cherty limestone) : Various. 



1864. Hemipronites crassus. Meek and Hayden, Smithsonian Cont. 



Knowledge, Vol. XIV, No. 172, p. 26, pi. 1, figs. 7a-d. 

 Coal Measures : Leavenworth City, Kansas. 



1865. Orthis lasallensis. McChesney, III. New Spec. Foss., p. 1, figs. 



5a-c. 

 1865. Orthis lasallensis. McChesney, 111. New Spec. Foss., pi. 1, figs. 



6a, b. 

 1868. Heniipronites lasallensis. McChesney, Trans, Chicago Acad. Sci., 

 Vol. I, p. 28, pi. 1, figs. 5a-c. 

 Coal Measures : N. W. Richmond, Missouri. 

 1868. Hcinipronites lasallensis. McChesney, Trans. Chicago Acad. Sci., 

 Vol. I, p. 28, pi 1, figs. 6a, b. 

 Upper Coal Measures: Lasalle, Illinois. 

 1872. Heniipronites crassus. Meek, U. S. Geol. Surv. Nebr., p. 174, pi.' 

 5, figs. lOa-c; pi. 8, fig. L 

 Coal Measures : Nebraska, Kansas, Iowa, Missouri, Illinois. 

 Chester limestone : AVest Virginia. 

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