1088 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 

 RAFINESQUINA LEDA Whiteaves. See Stropheodonta(?) leda. 



Bafinesquina mesicosta (Shumard). 



Leptsena mesacosta Shumard, Geol. Rep. Missouri, 1885, p. 205, pi. C, fig. 2. 



Keyes, Geol. Surv. Missouri, 5, 1895, p. 76. 

 Kafinesquina mesicosta Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 339. 



Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 46, pi. 1, fig. 10, p. 70. 

 Upper Medinan: Cape Girardeau County, Missouri (Girardeau); near Thebes, 



Illinois; Edgewood, and Louisiana, Missouri (Edgewood). 



Baflnesquina mesicosta mesistria Savage. 



Rafinesquina? mesicosta var. mesistria Savage, Bull. Geol. Surv. Illinois, 23, 1913, 



p. 70, pi. 4, fig. 6. 



Upper Medinan (Edgewood): Louisiana, etc., Missouri; below Hamburg, Calhoun 

 County, Illinois. 



Raflnesquina mlnnesotensis (N. H. Winchell). 



Strophomena deltoidea Owen (not Conrad), Geol. Expl. Iowa, Wisconsin, and 



Illinois, 1844, pi. 16, fig. 8; pi. 17, fig. 6. 

 Leptsena deltoidea Owen, Geol. Rep. Wisconsin, Iowa, and Minnesota, 1852, p. 



620, tab. 2B, fig. 10 (not the middle figure). 

 Strophomena incrassata Hall (not 1847), Geol. Wisconsin, 1, 1862, p. 42, fig. 16. 



Hall (not 1847), 2d Ann. Rep. New York State Geol., 1883, pi. 38, figs. 1-5.. 

 Strophomena minnesotensis N. H. Winchell, 9th Ann. Rep. Geol. Nat. Hist. Surv. 



Minnesota, 1881, p. 120. 

 Rafinesquina minnesotensis Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 



283. Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 401, pi. 31, figs. 



25-29. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 212, fig. 252. 

 Black River: Minneapolis, etc., Minnesota; Beloit, Wisconsin; Decorah, Iowa; 



Kentucky; Tennessee. 



Rafinesquina minnesotensis inquassa (Sardeson). 



Strophomena inquassa Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p. 

 334, pi. 5, figs. 22-24. 



Rafinesquina minnesotensis var. inquassa Winchell and Schuchert, Geol. Minne- 

 sota, 3, 1893, p. 403, pi. 31, figs. 27, 28. 



Black River (Decorah): Minneapolis and St. Paul, Minnesota; Mineral Point, 

 Wisconsin. 



Rafinesquina mucronata Foerste. 



Rafinesquina mucronata Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 265, 



pi. 2, fig. 7a, b. 

 Cincinnatian (Pulaski): Vars, Chambly, etc., Quebec. 



Rafinesquina nasuta (Conrad). 



Strophomena nasuta Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1842, p. 260. 



Emmons, Geol. New York, Rep. 3d Dist., 1842, p. 403, fig. 3. Owen, Amer. 



Jour. Sci. Arts, 47, 1844, p. 377, fig. 3; Geol. Expl. Iowa, Wisconsin, Illinois, 



2d ed., 1844, p. 84, pi. 17, fig. 10. Emmons, Amer. Geol., 1, pt. 2, 1885, pi. 



15, fig. 22; pi. 17, fig. 3. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, 



p. 1129, figs. 

 Strophomena alternata var. nasuta Miller, Cincinnati Quart. Jour. Sci., 2, 1875, 



p. 53. 

 Rafinesquina alternata-nasuta Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. 



Indiana, p. 928, pi. 37, fig. 4. 



