xii List of Illustrations 



PAGE 



Skeleton of Portheus molassus : 47 



Ctenothrissa vexillijera 48 



Clupea harengus, Herring 49 



Pomolobus pseudoharengus, Alewife 50 



Brevoortia tyrannus, Menhaden 51 



Diplomystus humilis 52 



Dorosoma cepedianum, Hickory-shad 53 



Anchovia perlhecata, Silver Anchovy 54 



Notogoneus osculus 55 



Phareodus testis 57 



Deposits of Green River Shales, bearing Phareodus, at Fossil, Wyoming 58 



A Day's Catch of fossil-fishes, Green River Eocene Shales , . . . 59 



Alepocephalus agassizii 60 



Coregonus williamsoni, Rocky Mountain Whitefish 63 



Coregonus clupeijormis, Whitefish 64 



Argyrosomus nigripinnis, Bluefin Cisco 66 



Stenodus mackenziei, Tnconnu 67 



Oncorhynchus tschawytscha, Quinnat Salmon (female) 6g 



Oncorhynchus tschawytscha, King-salmon (grilse) 70 



Oncorhynchus nerka, Male Red Salmon 70 



Oncorhynchus gorbuscha, Humpback Salmon (female) 72 



Oncorhynchus masou, Masu 72 



Oncorhynchus nerka, Red Salmon (mutilated dwarf male after spawning) 76 



Oncorhynchus tschawytscha, Quinnat Salmon (dying after spawning) 77 



Oncorhynchus tschawytscha, Quinnat Salmon 79 



Salmo irideus shasta, Rainbow Trout (male)- 98 



Salmo irideus shasta, Rainbow Trout (female) 99 



Salmo rivularis, Steelhead Trout 101 



Head of Adult Troutworm, Dibothrium cordiceps. From intestine of white 



pelican 103 



Median segments of Dibothrium cordiceps 103 



Salmo henshaivi, Tahoe Trout 104 



Salmo stomias, Green-back Trout 105 



Salmo macdonaldi, Yellow-fin Trout of Twin Lakes 105 



Salmo clarkii spilurus, Rio Grande Trout 106 



Salmo clarkii pleuriticus, Colorado River Trout 106 



Hucho blackistoni, Ito 107 



Salvelinus oquassa, Rangeley Trout 108 



Salvelinus aureolus, Sunapee Trout 109 



Salvelinus fontinalis, Speckled Trout (male) no 



Salvelinus jontinalis, Speckled Trout in 



Salvelinus malma, Malma Trout 113 



Salvelinus malma, Dolly Varden Trout 114 



Cristivomer namaycush, Great Lake Trout 114 



Plecoglossus altivelis, Ayu, or Japanese Samlet 116 



