184 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



46129. Ctenodonta cuneiformis ITlrich. Cotypes. 



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

 Minnesota. 



Ulrich, c;eol. and Nat. Hist. Surv. Minn., Iniial Rept., Ill, Ft. 11, 



1894, ]). 5S7, 1)1. 42, figs. 31-33. 



46130. Ctenodonta fecunda ( Hall ). Plesiotypes. 



Richmond (Ord. ). Near I)ul)uque, Iowa. 



Ulrich, Geol. and Nat. Hist. vSnrv. Minn., 1-inal Rept., IH, Pt. II, 

 i^'^94. P- 595- pl- 42, figs. 67-73. 



46131. Ctenodonta filistriata Ulrich. Cotypes. 



Utica (Ord.). Covington, Kentucky. 



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

 1894, P- 599, figs. 44a-e. 



28165. Ctenodonta frobisherensis Schuchert. Cotypes. 



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



Schuchert, Proc. V. S. Nat. Mus., XXII, 1900, p. i6f, pl. 13, 

 figs. 11-14. 



46132. Ctenodonta gibberula vSalter. Plesiotype. 



vStones River (Ord.). Murfree.sboro, Tenne.s.see. 



Ulrich, Geol. and Nat. Hist. vSurv. Minn., I'inal Rept., Ill, Pt. 11, 

 '•'^97. P- 599. figs. 44f. g- 



46133. Ctenodonta hamburgensis (Walcott). Plesiotype. 



Black River (Ord.). Chatfield, Minnesota. 



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

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



46134. Ctenodonta intermedia ( Ulrich). Cotypes. 



Trenton (Ord.). Near Wykoff, Minnesota. 



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

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



See Tellinomya intermedia. 



46135. Ctenodonta longa (UlrichJ. Holotype. 



Black Ri\er (Ord.). Eight miles south of Cannon Falls, 

 Minnesota. 



Ulrich, Geol. and Nat. Hi.st. vSurv. Minn., Final Rept., Ill, Pt. II, 

 1894, p. 590, pl. 37, figs. 30, 31. 



See Tellinomya longa. 



46136. Ctenodonta madisonensis Ulrich. Holotype. 



Richmond (Ord.). Madison, Indiana. 



Ulrich, Geol. and Nat. Hi.st. vSurv. Minn., I'inal Rept, III, Pt. II. 

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



46137. Ctenodonta medialis Ulrich. Cotypes. 



46138. Black River (Ord.). Six miles soitth 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. 50-52. 



