BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 1057 



Psiloconcha inornata Ulrich. 



Psiloconcha inornata Ulrich, Geol. Surv. Ohio, 7, 1893, p. 667, pi. 52, figa. 11 and 



12. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 387, fig. 491. 

 Maysville: Cincinnati, Ohio (Bellevue); St. Hilaire, Quebec (Pulaski). 

 Cotypes.C&t. No. 46284, U.S.N.M. 



Psiloconcha minima Ulrich. 



Psiloconcha minima Ulrich, Geol. Surv. Ohio, 7, 1893, pi. 52, figs. 8, 9, p. 669. 

 Orthodesma minimum Miller, N. A. Geol. Pal., 2d App., 1897, p. 783 (gen. ref.). 

 Eden (Southgate): Covington, Kentucky. 

 HolotypeC&t. No. 46285, U.S.N.M. 



Psiloconcha minnesotensis Ulrich. 



^siloconcha minnesotensis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 531, pi. 36, 



figs. 31 and 32. 



Orthodesma minnesotense Miller, N. A. Geol. Pal., 2d App., 1897, p. 783 (gen. ref.). 

 Trenton (Prosser): Pleasant Grove, Minnesota. 

 Holotype.Cat. No. 46286, U.S.N.M. 



Psiloconcha senecta (Sardeson). 



Modiolopsis senecta Sardeson, Bull. Minnesota Acad. Nat. Sci., 1893, 4, p. 73, 



pi. 2, fig. 17. 

 St. Peter: South St. Paul, Minnesota. 



Psiloconcha sinuata Ulrich. 



Psiloconcha sinuata Ulrich, Geol. Surv. Ohio, 7, 1893, p. 668, pi. 52, figs. 15 and 16. 

 Maysville (Bellevue): Cincinnati, Ohio. 

 Cotypes.Czt. No. 46288, U.S.N.M. 



Psiloconcha sinuata borealis Foerste. 



Psiloconcha sinuata borealis Foerste, Bull. Sci. Lab. Denison ^niv., 17, 1914, 



p. 296, pi. 2, figs. 9a-c. 

 Cincinnatian (Pulaski): Riviere des Hurons and Nicolet River, Quebec. 



Psiloconcha subovalis (Ulrich). 



Orthodesma subovale Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 8, pi. 7, 



fig. 18. 

 Psiloconcha subovalis Ulrich, Geol. Surv. Ohio, 1893, p. 666, pi. 52, figs. 5-7. 



Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 295, pi. 2, fig. 15. 

 Maysville: Morrow, Ohio (Bellevue); Riviere des Hurons, Quebec (Pulaski). 

 Holotype and plesiotypes.Cat. Nos. 46290, 46291, U.S.N.M. 



Psiloconcha subrecta Ulrich. 



Psiloconcha subrecta Ulrich, Geol. Surv. Ohio, 7, 1893, p. 667, pi. 52, figs. 13 



and 14. 



Richmond (Waynesville) : Waynesville, Ohio. 

 Holotype. Cat. No. 46289, U.S.N.M. 



Psiloconcha tenuistriata Ulrich. 



Psiloconcha tenuistriata Ulrich, Geol. Surv. Ohio, 7, 1893, p. 668, pi. 52, fig. 10. 

 Orthodesma tenuistriatum Miller, N. A. Geol. Pal., 2d App., 1897, p. 784 (gen. 



ref.). 



Eden (Economy): Covington, Kentucky. 

 Holotype. Cat. No. 46292, U.S.N.M. 



PSILONYCHIA Ulrich. Genotype: P. perangulata Ulrich. 



Psilonychia Ulrich, Geol. Surv. Ohio, 7, 1893, p. 648. 



