Part 3. FISHEb. 

 Section 1.— BIOLOGY OF FISHES. 



CONTENTS. 



Page 



General 27 



Anatomy (^including histology, 



morphology, and osteology) 27 



Embryology '. '. 27 



Food ■ 29 



Pathology and pathological condi- 

 tions 34 



Diseases 34 



Mortality 35 



Parasites 37 



Pollution 38 



Physiology 39 



Age.'. 39 



Sense organs 39 



Metabolism 40 



Growth 40 



Vitality 41 



Weight 41 



Poisonous fishes 41 



Regeneration 41 



Oxygen requirements 41 



Variation 42 



Relations 42 



Enemies 42 



En\'ironmental factors 43 



Temperature 43 



Density and salinity 44 



Habits and behavior 44 



Miscellaneous 44 



Breeding habits 45 



Color 47 



Hibernation 47 



Migration 47 



Marking fish 49 



Predacious behavior 50 



Arrangement by families 50 



Selachii 50 



Marsipoljranchii 51 



Petromyzontidae 51 



Teleostii 51 



Acipenseridaj 51 



Albulidae 51 



Alepidosauridse 52 



Alenocephalidae 52 



Amblyopsidae 52 



Amiida? (AmiatiJa;) 52 



Ammodytidui 52 



Anarliichadida3 52 



Anguillidaj 52 



Antennariidte 53 



Page. 

 Arrangement by families — Contd. 

 Teleostii — Continued. 



Atherinidie 53 



Balistidse 53 



Batrachoididae 53 



Belonida? 53 



Berycidae 53 



Blenniida' 53 



Bramida^ 53 



Branchiostomidse 54 



Brotulidse 54 



CarangLdse 54 



Catostomidse ; 54 



Centrarchidse 54 



Chimaeridse 55 



Chiridae 55 



Cichlidse 55 



Clupeidae . .' 55 



Coryphsenidse 59 



Cottida; 59 



Cyprinidae 59 



Dalliidse 02 



Diodontidae 62 



Dorosomatidae 62 



Echeneididae 62 



Elopida 62 



Embiotocidae 63 



Engraulidae 63 



Ephippidae 63 



Esocidae 63 



Fierasf eridae 63 



Gadida; 63 



Gasterosteidae 64 



Gerridae 65 



Gobiida; 65 



Hexagrammidae 65 



Hippocampida; 65 



Hyodontidse 65 



Icosteidae 65 



Istophoridae 65 



Labridae 65 



Ijamijridae 65 



Lophiidae 65 



Lepidosteidae (Lepisosteidae) 65 



Leptocephalidse 66 



Liparididae 66 



LoDotidae 66 



Lophiidae 66 



Lutianidae 66 



Jjvcodidae 66 



25 



