3238 Bulletin 4.7, United States National Museum. 



Text page. 



80. Catostomus tsiltcoosensis Evermann and Meek 2793 



Drawing by A. H. Baldwin from the type, No. 48479, U.S.N.M., 

 collected by Dr. Meek in Tsiitcoos Lake, Oregon. 



81. Pharyngeal teeth of Catostomus macrocheilus Girard 178 



82. Pharyngeal teeth of Placopharyiix duquesnii (Le Sueur) 198 



PLATE XXXIV, 



83. Catostomus commersonii (Lace"pede) 178 



Drawing by H. L. Todd from No. 10458, U.S.N.M., collected 

 by J. W. Milner at Ecorse, Michigan. 



84. Catostomus ardens Jordan and Gilbert 179 



Drawing by H. L. Todd from the type, No. 27363, U.S.N.M., 

 collected by Dr. Jordan in Utah Lake, Utah. 



85. Chasmistes liorus Jordan 183 



Drawing by S. F. Denton from No. 3042, U.S.N.M., collected 

 by Dr. Jordan in Utah Lake. 



PLATE XXXV. 



86. Chasmistes stomias Gilbert 2794 



Drawing by A. H. Baldwin from the type, No. 48223, U.S.N.M., 

 collected by Gilbert and Cramer in Upper Klamath Lake, 

 Oregon. 



87. Chasmistes copei Evermann and Meek 2795 



Drawing by A. H. Baldwin from the type, No. 48224, U.S.N.M., 

 collected by Meek and Alexander in Upper Klamath Lake, 

 Oregon. 



88. Xyrauchen cypho (Lockington) 184 



Drawing by S. F. Denton from a specimen collected by Dr. 

 Jordan in Green River, Blake City, Utah. 



PLATE XXXVI. 



89. Erimyzon sucetta Lace'pede 185 



Drawing by H. L. Todd from No. 27867, U.S.N.M., collected 

 by Dr. Forbes in Nipisink Lake, Illinois. 



90. Minytrema melanops (Rafinesque) 187 



Drawing by H. L. Todd from No. 17800, U.S.N.M., collected 

 by Dr. Bean in Round Lake, near Montgomery, Alabama. 



91. Moxostoma congestum (Baird and Girard) 192 



Drawing by H. L. Todd from No. 36510, U.S.N.M., collected 

 in the Rio Lampasas, Belton, Texas. 



PLATE XXXVII. 



92. Moxostoma austrinum Bean 192 



Drawing by H. L. Todd from the type, No. 23121, U.S.N.M., 

 collected at Piedad, in Morelia (Michoacan), Mexico, by 

 Prof. A. Duges. 



