Xll LIST OF FIGURES IN TEXT 



Bunocephalus amaurus Eigenmann. Type 127 



Agmus lyriformis Eigenmann. Type 128 



Teeth of Selenaspis herzbergi (Bloch) 141 



Teeth of Selenaspis passany (Cuvier and Valenciennes) 142 



Outlines of occipital processes of various individuals of Notarius grandicassis (Cuvier 



and Valenciennes) 143 



Outlines of occipital processes of various individuals of Notarius par?nocassis (Cuvier 



and Valenciennes) 144 



Outlines of occipital processes of three specimens of Notarius stricticassis (Cuvier and 



Valenciennes) 145 



Outline of premaxillary band of teeth in Megalonema platycephahim Eigenmann 150 



Outline of Pseudopimelodus villosus Eigenmann. Type 152 



Chasmocranus longior Eigenmann. Type 161 



Plecostomus hemiurus Eigenmann. Type 225 



Pseudancistrus nigrescens Eigenmann. Type 234 



Ancistrus lithurgicus Eigenmann. Type 241 



Tetragonopterus argenteus Cuvier 318 



Tetragonopterus chalceus Agassiz 319 



Maxillary bone of Rhinosardinia serrata Eigenmann 445 



