XIV CONTENTS. 



Page. 

 Order IX. Plagiostomi Continued. 



Family Scylliodoritidae _ - 362 



Triakis - 362 



Triakis scmifasciatus - 302 



Family Mustelidac - - 364 



Mustolus felis 364 



Family Cestraciontidae _ - - 364 



Cestiacion .&quot;65 



Cestracion francisci - - 36,&quot;) 



Family Notidanidae - - 366 



Heptanchus maculatus 367 



Family Spinacidae - - 367 



Acanlhias - - 367 



Acanthias sucklii . 368 



Sub-order II. Eajae - 369 



Family Rhinobatidae 369 



llhinobatus - 370 



Rhinobatus productus _. _. 370 



Family Torpedinidae _ 371 



Narcine californica _ _ 371 



Family Raiidae 371 



Raja 372 



Raja cooperi . . 372 



Uraptera 373 



Uraptera binoculata . 373 



Family Myliobatidae . __ . 374 



Rhinoptera 374 



llhinoptera vespertilio. 375 



Order X. Dermopteri = 376 



Sub-order. Marsipobranchii s. Cyclostomi _ 376 



Family Petromyzontidae . 376 



Petromyzon *.....^ 377 



1. Petromyzon tridentatus 377 



2. Petromyzon. ciliatus 378 



3. Petromyzon lividus . 379 



4. Petromyzon plumbeus __ _ 380 



5. Petromyzon astori 380 



Ichthyomyzon 381 



1. Ichthyomyzon castaneus 381 



2. Ichthyomyzon hirudo _. 382 



Ammocoetes 383 



Ammocoetes cibarius . 383 



Scolecosoma 384 



List of the plates 385 



Alphabetical index .. . 389 



