TABLE OF CONTENTS. 



Paso. 



Genws Erimyzon 140 



Erimyzon sucetta .• 144 



Erimyzon goodoi 148 



Genus Cliasmistos 149 



Chasiiiistcs fecnndns , 150 



Genus Catostoinus 151 



Catostonius nigricans IC'i 



Catostoraus clarki 10') 



Catostonins insignis 1(55 



Catostoinus teres IHO 



Catostomus macrocLiiluii 171 



Catostomus cccidentalis 172 



Catostonins labi.atns 171? 



Catostomus at ueopus 173 



Catostomus taboensis 173 



Catostomus rostratus 174 



Catostonins longirostris 175 



Catostonins retroplnnis 178 



Catostomus latipinnis 178 



Carostomus discobolus 179 



Genus Pautostens 180 



Pantostens virescens 182 



Pantostensplatyrbyncbus 183 



Pantostens generosus 183 



Pantostens plebeius 184 



Genus Cycleptns . 186 



Cycleptus elongatus 189 



Genus Carpiodes .* . . . 190 



Carpiodes dilifonnis 195 



Carpiodes cutisanserlnus 195 



Carpiodes velifer 19G 



Carpiodes bison 197 



Carpiodes tbonipsoni 198 



Carpiodes cyprinus 198 



Carpiodes carpio 200 



Genus Bubalicbtbys 201 



Bubalicbtbys bnbalus 206 



Bubalicbtbys urns 209 



Bubalicbtbys ineridionalis 210 



Genus Icbthyobns 21 1 



Icbtbyobns bubal us 214 



Genus Myxocyprinns 217 



Myxocyprinns asiaticus... 217 



Addendum 219 



Cbasniistes Horns 219 



Catostomus fecundus 219 



BibliograpLy 221 



Index 231 



