518 BULLETIN" 92^ UNITED STATES NATIONAL MUSEUM. 



EUEYDICTTA Ulrich. Genotype: E. montifera Ulrich. 



Eurydicta Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 389, 520.— (Ulrich in press), 

 Miller, N. A. Geol. Pal., 1889, p. 301.— Ulrich, Geol. Minnesota, 3, 1893, p. 

 138.— Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894, p. 17.— Simpson, 14th 

 Ann. Rep. State Geol. New York for 1894, 1897, p. 527.— Nickles and Bassler, 

 Bull. U. S. Geol. Surv., 173, 1900, p. 48. 



Eurydictya calhoiinensis Ulrich. 



Etirydictya calhounensis Ulrich, Geol. Surv. Illinois, 8, 1890, p. 520, pi. 30, 



figs. 4-4c. 

 Black River (Kimmswick): Three miles north of Cap an Gres, Calhoun County, 



Illinois. 

 Sections of holotype.— Cat. No. 43754, U.S.N.M. 



Eurydictya montifera Ulrich. 



Eurydictya montifera Uhich, Geol. Surv. Illinois, 8, 1890, p. 521, pi. 30, 



figs. 3-3d.— Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, 



figs. 80-82 (p. 528). 

 Richmond (Fernvale): Wilmington, Illinois. 

 Fragment oi holotype.— Cat. No. 43753, U.S.N.M. 



Eurydictya inultipora (Hall). 



Phsenopora multipora Hall, Foster and WTiitney's Rep. Geol. Lake Superior Land 

 District, pt. 2, 1851, p. 206, pi. 24, figs, la, b.— Uhich, Jom. Cincinnati Soc. 

 Nat. Hist., 5, 1882, p. 171, pi. 8, figs. 7-7b. 



Eurydictya multipora Ulrich, Geol. Surv. Illinois, 8, 1890, p. 520; Geol. Minne- 

 sota, 3, 1893, p. 139, pi. 6, 9-11; pi. 14, 9-11 (not pi. 7, 24, 29-31=Rhinidictya 

 fideiis Uhich).— Nickles and Bassler, U. S. Geol. Surv., 173, 1900, p. 241.— 

 Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 38, pi. 1, figs. 11, 12. 



Ptilodictya antiqua James, Paleontologist, 5, 1881, p. 37. 



Black River and Trenton: Escanaba River, Michigan; Burgin, Kentucky; Nash- 

 ville, Tennessee; St. Paul, Minnesota. 



Plesiotypes.— Cat. No. 43604, U.S.N.M. 



Eurydictya multipora (in part) Ulrich. See Rhinidictya fideiis. 



Eurydictya sterlingensis Ulrich. 



Eurydictya sterlingensis Uhich, Geol. Surv. Illinois, 8, 1890, p. 522, pi. 30, 



figs. 2, 2a. 

 Richmond (Maquoketa): Sterling and South Elgin, Illinois. 



EURTMTA Ulrich. Genotyjw: Modiolopsis plana Hall. 



Eurymya Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 512.— Sardeson, Amer. Geol., 

 30, 1902, p. 39.— Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 517. 



Eurymya alata (Ulrich). 



Modiolopsis alata Ulrich, Amer. Geol., 5, 5, 1890, p. 280, figs. 8a-c. 

 Eurymya alata Uhich, Geol. Minnesota, 3, pt. 2, 1894, p. 512 (gen. ref.). 

 Maysville (Fairmount): Cincinnati, Ohio, and \'icinity. 

 Cotypes.— Cat. No. 46201, U.S.N.M. 



Eurymya plana (Hall). 



Modiolopsis plana Hall, Rep. Supt. Geol. Surv. Wisconsin, 1861, p. 30; Geol. 

 Wisconsin, 1, 1862, pp. 38 and 438, fig. 6.— Chamberlin, Geol. Wisconsin, 1, 

 1883, p. 156, fig.— Ulrich, 19th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 

 1892, p. 224, fig.— ^\^litfield, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 56, 

 pi. 7, figs. 12, 13 (?14, 15).— Sardeson, Amer. Geol., 30, 1902, p. 40, figs. 1-9. 



