scHucHERT.] INDEX AND BIBLIOGRAPHY. 203 



Dalmanella stonensis (Saftbrd). Trenton (Ord.). 



Ortliis stonensis Safford, Geol. Tennessee, 1869, p. 286. 

 Dalmanella stonensis Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, p. 224, 



pi. 5C, figs. 4, 5. 

 Loc. Near Nashville, Tennessee. ' 



Dalmanella subsequata (Conrad). Trenton (Ord.). 



Orthis subffiquata Conrad, Proc. Acad. Nat. Sci. Philadelphia, I, 1843, p. 333. — 



Hall, Pal. New York, I, 1847, p. 118, pi. 32, fig. 2;— Geol Wisconsin, I, 1862, 



p. 42, figs. 1-3, and p. 436;— Second Ann. Rep. New York State Geol., 1883, 



pi. 34, figs. 19-24. 

 Orthis nilnneapolis N. H. Winchell, Eighth Ann. Rep. Geol. Nat. Hist. Survey 



Minnesota, 1880, p. 63. 

 Orthis perveta Hall, Second Ann. Rep. New York State Geol., 1883, pi. 34, figs. 



17, 18(?16). 

 Dalmanella subiequata Hall and Clarke, Pal. New York, YIII, Pf. I, 1892, pp. 



194, 207, 224, pi. 5C, figs. 6-11. 

 Dalmanella perveta Hall and Clarke, Ibidem, 1892, p. 224, pi. 5C, figs. 13, 14. 

 Orthis (D.) subtequata Winchell and Schuchert, Minnesota Geol. Survey, III, 



1893, p. 446, pi. 33, figs. 30-36. 

 Loc. Mineral Point, Wisconsin ; Minneapolis, St. Paul, Cannon Falls, Fountain, 



etc., Minnesota; Decorah and McGregor, Iowa; Auburn, Lincoln County, 



Missouri; Montreal, Canada. 



Dalmanella subsequata circularis N. H. Winchell. Trenton (Ord.). 



Orthis circularis N. H. Winchell, Eighth Ann. Rep'. Geol. Nat. Hist. Survey Min- 

 nesota, 1880, p. 66. 



Orthis (D.) suba^quata var circularis Winchell and Schuchert, Minnesota Geol. 

 Survey, III, 1893, p. 452, pi. 33, figs. 46, 47. 



Loc. Minneapolis, Cannon Falls, etc., Minnesota; Highbridge, Kentucky; Leb- 

 anon, Tennessee. 



Dalmanella subsequata conradi N. H. Winchell. Trenton (Ord.). 



Orthis conradi N. H. Winchell, Eighth Ann. Rep. Geol. Nat. Hist. Survey Min- 

 nesota, 1880, p. 68. 



Orthis (D.) subiequata var. conradi Winchell and Schuchert, Minnesota Geol. 

 Survey, III, 1893, p. 449, pi. 33, figs. 37-39. 



Loc. Minneapolis, Minnesota; Decorah, Iowa; Janesville and Beloit, Wiscon- 

 sin; Montreal, Canada; ?Eureka district, Nevada. 



Dalmanella subaequata gibbosa (Billings). Chazy-Trenton (Ord.). 



Orthis gibbosa Billings, Geol. Survey Canada; Rep. Progress for 1856, 1857, p. 

 296;— Canadian Nat. Geol., IV, 1859, p. 434. 



Dalmanella gibbosa Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, p. 224. 



Orthis (D.) subiequata var. gibbosa Winchell and Schuchert, Minnesota Geol. 

 Survey, III, 1893, p. 451, pi. 33, figs. 43-45. 



Loc. Near Ottawa and Bellville, Canada; Minneapolis, Cannon Falls, etc., Min- 

 nesota; Decorah, Iowa; Mineral Point, Wisconsin; in the Chazy, Island of 

 Montreal, and Pallideau Islands, Lake Huron. 



Dalmanella subaequata pervetus (Conrad). Trenton (Ord.). 



Orthis perveta Conrad, Proc. Acad. Nat. Sci. Philadelphia, I, 1843, p. 333. — 

 Hall, Pal. New York, I, 1847, p. 120, pi. 32, fig. 5.— Billings, Canadian Nat. 

 Geol., IV, 1859, p. 434, fig. 10.— Hall, Geol. Wisconsin, I, 1862, p. 42, fig. 7.— 

 Billings, Geol. Canada, 1863, p. 130, fig. 57. 



Orthis media N. H. Winchell, Eighth Ann. Rep. Geol. Nat. Hist. Survey Minne- 

 sota, 1880, p. 64. 



