BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 515 



EUOMPHALUS (RAPHISTOMA?) TROCHISCUS Meek. See Polygyrata trochiscus. 

 EUOMPHALUS UNIANGULATUS Hall. See Helicotoma uniangulata. 

 EUOMPHALUS? VATICINUS Hall. See Raphistoma minneso tense. 



Euomphalus verneuili Castelnau. 



Euomphalus Verneuili Castelnau, Essai Syst. Sil. 1'Amerique Septent., 1843, p. 



34, pi. 11, figs, la, b. 

 Silurian: Northern shore of Lake Huron. 



Euomphalus wlnonensis Sardeson. 



Euomphalus winonensis Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 

 96, pi. 6, fig. 1. 



Ozarkian (Oneota): Near Dresbach, Winona County, and near Red Wing, Good- 

 hue County, Minnesota; B Ian chard ville, Wisconsin. 



EURTCHILINA Ulrich. Genotype: E. reticulata Ulrich. 



Eurychilina Ulrich, Cont. Micro-Pal., Geol. Surv. Canada, pt. 2, 1889, p. 52. 

 Vogdes, Annals New York Acad. Sci., 5, 1889, facing p. 36. Ulrich, Jour. 

 Cincinnati Soc. Nat. Hist., 13, pt. 1, 1890, pp. 125, 126. Jones, Quart. Jour. 

 Geol. Soc. London, 46, 1890, p. 538. Miller, N. A. Geol. Pal., 1st App., 1892, 

 p. 707. Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 658; Zittel-Eastman Textb. 

 Pal., 1, 1900, p. 644. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 

 1908, p. 1040. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 348. 

 Bassler, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 738. 



Eurychilina sequalis Ulrich. 



Eurychilina sequalis Ulrich. Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 129, 



pi. 9, figs. 5-8. 

 Eurychilina equalis Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 348 



figs. 1657q-s. 

 Stones River (Ridley?): Bottom of gorge at High Bridge, Kentucky; Lebanon, 



Tennessee. 

 Cotypes.C&t. No. 41639, U.S.N.M. 



Eurychilina billings! (Jones). 



Primitia billingsi Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 547, pi. 21, 



fig. 10. 

 Anticostian (Gun River and Jupiter River) : West of Jupiter River, Anticosti. 



Eurychilina bulbifera Ruedemann. 



Eurychilina bulbifera Ruedemann, Bull. New York State Mus., 49, 1901, p. 76, 



pi. 5, figs. 14-17. 

 Mohawkian (Rysedorph): Rysedorph Hill, Rennselaer County, New York. 



N 



Eurychilina dianthus Ruedemann. 



Eurychilina dianthus Ruedemann, Bull. New York State Mus., 49, 1901, p. 78, 



pi. 5, figs. 1, 2, 8, 9. 

 Mohawkian (Rysedorph): Rysedorph Hill, Rennselaer County, New York. 



Eurychilina frobisheri (Emerson). 



Primitia frobisheri Emerson, Narrative Hall's Sec. Arctic Exped., U. S. Navy 



Dep., 1879, p. 581, fig. 8. 

 Richmond: Frobisher Bay, Baffin Land. 

 Plastotype.C&t. No. 60728, U.S.N.M. 



