204 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



46172. Cyrtodonta affinis fillmorensis Ulrich. Holotype. 



Trenton (Ord.). Wykoff, Minnesota. 



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

 1894, p. 54o, pi. 39. fig- 2 3- 



46173. Cyrtodonta ampla Ulrich. Holotype. 



Stones River (Ord.). Cannon Falls, Minnesota. 



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



1894, p. 538, pi. 39, fig. 34. 



46174. Cyrtodonta billingsi Ulrich. Cotype. 



46175. Stones River (Ord.). Cannon Falls, Minnesota; Dunleith, 



Illinois. 



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



1894, p. 53S, pi. 40, figs. 2-6. 



46176. Cyrtodonta cingulata (Ulrich). Holotype. 



Black River (Ord.). Minneapolis, Minnesota. 



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

 1S94, p. 545, pi. 40, figs. 7, 8. 



See C3^pricardites cingulata. 



46228. Cyrtodonta gantii Safford. Cotypes. 



Trenton (Ord. ). Wilson County, Tennessee. 

 Safford, Geol. Tenn., 1869, PI. E, figs. ia-d. 

 = Modiolodon gantii. 



46177. Cyrtodonta gibbera Ulrich. Holotype. 



Trenton (Ord.). Thirteen miles south of Cannon Falls, 

 Minnesota. 



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

 1894, p. 542, pi. 39, figs. 13-15. 



28161. Cyrtodontaf ?) gibbera Ulrich var. Holotype. 



Trenton (Ord.). Head of Frobisher Bay, Baffin Fand. 



Schuchert, Proc. U. S. Nat. Mus., XXII, 1900, p. 162, pi. 13, figs. 

 34-36. 



4617S Cyrtodonta glabella (Ulrich). Holotype and plesiotypes. 



to Black River (Ord.). Minneapolis, Minnesota. 



46180. Stones River (Ord.). Beloit, Wisconsin; Dunleith, Illinois. 



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

 1894, p. 543, pi. 39, figs. 37-40. 



See Cypricardites glabella. 



46182. Cyrtodonta grandis (Ulrich). Cotypes and plesiotypes. 



40859. Trenton (Ord.). One and one-half miles south of Burgin, 



Kentucky; Pleasant Grove, Minnesota. 



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

 1S9-), p. 547, figs. 43a-i; pi. 40, fig. n. 



See Cypricardites grandis. 



