668 



BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



46022. Trochonema arctatum Ulrich. Holotype. 



Trenton (Ord.). Near Burgin, Kentucky. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., Final Rept., Ill, Pt. II, 

 1897, p. 1054, pi. 76, figs. 9, 10. 



46023. Trochonema beachi Whitfield ? Plesiotypes. 



46024. Stones River (Ord.). Minneapolis, Minnesota; Janesville, 



46025. Wisconsin; Dixon, Illinois. 



Ulrich and Scofield, Geol. and Nat. Hist. Surv. Minn., Final Rept., 

 Ill, Pt. II, 1897, p. 1048, pi. 77, figs. 9-12. 



46076. Trochonema bellulum Ulrich. Holotype. 



Stones River (Ord.). Murfreesboro, Tennessee. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., Final Rept., Ill, Pt. II, 

 1897, p. 1050, pi. 77, figs. 26-29. 



46026. Trochonema beloitense Whitfield. Plesiotypes. 



46027. Stones River (Ord.). Beloit and Mineral Point, Wisconsin. 



Ulrich and Scofield, Geol. and Nat. Hist. Surv. Minn., Final Rept., 

 Ill, Pt. II, 1897, p. 1048, pi. 78, figs. 1-9. 



46077. Trochonema eccentricum Ulrich. Holotype. 



Stones River (Ord.). Near Lebanon, Tennessee. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., Final Rept., Ill, Pt. II, 

 1897, p. 1049, pi. 77, figs. 19-22. 



46028. Trochonema fragile Ulrich and Scofield. Cotypes. 



46029. Trenton (Ord. ) . Cannon Falls, Minnesota; Carroll County, 



Illinois. 



Ulrich and Scofield, Geol. and Nat. Hist. Surv. Minn., Final Rept., 

 Ill, Pt. II, 1897, p. 1050, pi. 77, figs. 13-16. 



46030. Trochonema madisonense Ulrich. Holotype. 



Richmond (Ord.). Madison, Indiana. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., Final Rept., Ill, Pt. II, 

 . 1S97, p. 1051, pi. 77, figs. 23-25. 



46031. Trochonema niota (Hall). Plesiotype. 



Stones River (Ord.). Beloit, Wisconsin. 



Ulrich and Scofield, Geol. and Nat. Hist. Surv. Minn., Final Rept., 

 Ill, Pt. II, 1897, pi. 76, figs. 16-18. 



46032. Trochonema ( Eunema ) nitidum Ulrich. Holotype. 



Utica (Ord.). Covington, Kentucky. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., Final Rept., Ill, Pt. II, 

 1897, p. 1053, pi. 77, figs. 44, 45. 



46033. Trochonema (Eunema) obsoletum Ulrich. Holotype. 



Trenton (Ord.). Near Burgin, Kentuck}^. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., Final Rept., Ill, Pt. II, 

 1897, p. 1054, pi. 76, figs. 6-8. 



46034. Trochonema retrorsum Ulrich and Scofield. Holotype. 



Black River (Ord.). Goodhue County, Minnesota. 



Ulrich and Scofield, Geol. and Nat. Hist. Surv. Minn., Final Rept., 

 Ill, Pt. II, 1897, p. 1051, pi. 77, figs. 35-38. 



