CONTENTS. 1 1 



FISHES— Continued. P age 



Order Acanthopteri ^ . 288 



Sphyrsenidae 288 



Cladocyclus 288 



occidentalis , 288 



Enchodus 289 



Shumardi 289 



Phasganodus 289 



dims 289 



Order Malacopteri 291 



Siluridae 291 



Xiphactinus 291 



audax ,. 291 



Ganoidei 292 



Pycnodus 292 



faba 292 



Hadrodus 294 



priscus 295 



Elasmobranchii 295 



Order Plagiostomi 295 



Ptychodus Mortoni 295 



occidentalis „ 298 



Whippleyi 300 



Acrodus 300 



humilis 300 



Galeocerdo 301 



falcatns • 301 



Oxyrhina 302 



extenta 302 



Lamna s. Oxyrhina 303 



Otodus 305 



divaricatus 305 



Order Holocepliali 306 



Edaphodon 306 



mirificus 306 



Eumylodus 309 



laqueatus 309 



NOTICE OF SOME EEMAINS OF FISHES FEOM THE CARBONIFEEOUS FOEMATION OF 



KANSAS ." 311 



Order Plagiostomi 311 



Cladodus 311 



occidentalis 311 



Xystracanthus 312 



arcuatus 312 



Potalodus 312 



alleghaniensis 312 



Asteracanthu8 313 



siderius 313 



SYNOPSIS OF THE EXTINCT VEETEBEATA DESCEIBED OE NOTICED IN THE PEESENT 



WOEK 315 



