184 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



46129. Ctenodonta cuneiformis Ulrich. Cotypes. 



Black River (Ord.). Six miles south of Cannon Falls, 

 Minnesota. 



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



1894, p. 5S7, pi. 42, figs. 31-33. 



46130. Ctenodonta fecunda (Hall). Plesiotypes. 



Richmond (Ord.). Near Dubuque, Iowa. 



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

 1894, p. 595, pi. 42, figs. 67-73. 



46131. Ctenodonta filistriata Ulrich. Cotypes. 



Utica (Ord.). Covington, Kentucky. 



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

 i394, P- 599, fi g s - 44a-e. 



28165. Ctenodonta frobisherensis Schuchert. Cotypes. 



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



Schuchert, Proc. U. S. Nat. Mus., XXII, 1900, p. 161, pi. 13, 

 figs. 11-14. 



46132. Ctenodonta gibberula Salter. Plesiotype. 



Stones River (Ord.). Murfreesboro, Tennessee. 



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

 1897, P- 599, fig s - 44f, g- 



46133. Ctenodonta hamburgensis (Walcott). Plesiotype. 



Black River (Ord.). Chatfield, Minnesota. 



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

 1894, p. 605, pi. 42, figs. 91, 92. 



46134. Ctenodonta intermedia (Ulrich). Cotypes. 



Trenton (Ord.). Near Wykoff, Minnesota. 



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

 1894, p. 601, pi. 42, figs. 95-97. 



See Tellinomj'a intermedia. 



46135. Ctenodonta longa (Ulrich). Holotype. 



Black River (Ord.). Eight miles south of Cannon Falls, 

 Minnesota. 



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

 1S94, P- 59°, pl- 37, figs- 3°, 3i- 



See Tellinomya longa. 



46136. Ctenodonta madisonensis Ulrich. Holotype. 



Richmond (Ord.). Madison, Indiana. 



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

 1894, p. 597, pl. 42, figs. 65, 66. 



46137. Ctenodonta medialis Ulrich. Cotypes. 



46138. Black River (Ord.). Six miles south of Cannon Falls, 



Minnesota. 

 Trenton (Ord.). Kenyon, Minnesota. 



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

 1894, P- 593, Pl- 42, figs. 5°-52. 



