List of Illustrations xxiii 



PAGE 



Edward Waller Claypole 409 



Carlos Berg 409 



Edgar R. Waite 409 



Felipe Poey y Aloy 413 



Leon Vaillant 413 



Louis Dollo 413 



Decio Vinciguerra 413 



Bashford Dean 4*17 



Kakichi Mitsukuri 417 



Carl H. Eigenmann 417 



Franz Hilgendorf 417 



David Starr Jordan 421 



Herbert Edson Copeland 421 



Charles Henry Gilbert 421 



Barton Warren Evermann 421 



Ramsay Heatley Traquair 425 



Arthur Smith Woodward -.- 425 



Karl A. Zittel 425 



Charles R. Eastman 425 



Fragment of Sandstone from Ordovician Deposits 435 



Fossil Fish Remains from Ordovician Rocks 436 



Dipterus valenciennesi 437 



Hoplopleryx lewesiensis 438 



Paratrachichthys prosthemius, Berycoid-fish 439 



Cypsilurus heterurus, Flying-fish 440 



Lutianida, Schoolmaster Snapper 440 



Pleuronichthys decurrens, Decurrent Flounder 441 



Cephalaspis lyelli, Ostracophore 444 



Dinichthys intermedius, Arthrodire 445 



Lamna cornubica, Mackerel-shark or Salmon-shark 447 



Raja stellulata, Star-spined Ray 448 



Harriotta raleighiana, Deep-sea Chimaera 449 



Dipterus valenciennesi, Extinct Dipnoan 449 



Holoptychius giganteus, Extinct Crossopterygian 451 



Platysomus gibbosus, Ancient Ganoid-fish 452 



Lepisosteus platystomus, Short-nosed Gar 452 



Palceoniscum macropomum, Primitive Ganoid-fish 453 



Diplomystus humilis, Fossil Herring 453 



Holcolepis lewesiensis 454 



Flops saurus, Ten-pounder '. 454 



Apogon semilineatus, Cardinal-fish 455 



Pomolobus cestivalis, Summer Herring 455 



Bassozetus catena 456 



Trachicephalus uranoscopus 456 



Chlarias breviceps, African Catfish 457 



