Contents xiii 



CHAPTER XVIII. 

 FISHES AS FOOD FOR MAN. 



PAGE 



The Flesh of Fishes. Relative Rank of Food-fishes. Abundance of Food- 

 fishes. Variety of Tropical Fishes. Economic Fisheries. Angling 320 



CHAPTER XIX. 



DISEASES OF FISHES. 



Contagious Diseases: Crustacean Parasites. Myxosporidia or Parasitic Proto- 

 zoa. Parasitic Worms: Trematodes, Cestodes. The Worm of the Yellow- 

 stone. The Heart Lake Tapeworm. Thorn-head Worms. Nematodes. 

 Parasitic Fungi. Earthquakes. Mortality of Filefish 340 



CHAPTER XX. 

 THE MYTHOLOGY OF FISHES. 



The Mermaid. The Monkfish. The Bishop-fish. The Sea-serpent 359 



CHAPTER XXI. 



THE CLASSIFICATION OF FISHES. 



Taxonomy. Defects in Taxonomy. Analogy and Homology. Coues on 

 Classification. Species as Twigs of a Genealogical Tree. Nomenclature. 

 The Conception of Genus and Species. The Trunkfishes. Trinomial 

 Nomenclature. Meaning of Species. Generalization and Specialization. 

 High and Low Forms. The Problem of the Highest Fishes 367 



CHAPTER XXII. 

 THE HISTORY OF ICHTHYOLOGY. 



Aristotle. Rondelet. Marcgraf. Osbeck. Artedi. Linnaeus. Forskal. 

 Risso. Bloch. Lacepede. Cuvier. Valenciennes. Agassiz. Bonaparte. 

 Giinther. Boulenger. Le Sueur. Muller. Gill. Cope. Liitken. 

 Steindachner. Vaillant. Bleeker. Schlegel. Poey. Day. Baird. Gar- 

 man. Gilbert. Evermann. Eigenmann. Zittel. Traquair. Wood- 

 ward. Dean. Eastman. Hay. Gegenbaur. Balfour. Parker. Dollo. . 387 



CHAPTER XXIII. 

 THE COLLECTION OF FISHES. 



How to Secure Fishes. How to Preserve Fishes. Value of Formalin. Rec- 

 ords of Fishes. Eternal Vigilance 429 



