Xil List of Illustrations 
PAGE 
Skeleton of Portheus molassus. .. 0... c ccc cece etn eee nee nen faeeenane 47 
Ctenothrissa vexilliferd... 0.60 c ccc cece cence cence nee eee n enna neenees 48 
Clupea harengus, Herring... .. 2-06-00 eee eee cece nee n etn e nent nes 49 
Pomolobus pseudoharengus, Alewife..........scec eee e cere etre ene ee erence 50 
Brevoortia tyrannus, Menhaden. .....--- 6206s eee cere eee tenet cnet teen eens 51 
Diplomystus humilis. ... 060-000 vere eens Kio gaghabeia eS Laid LIRR GANE Sie oh inva ate 52 
Dorosoma cepedianum, Hickory-shad. .. ....- 6-6-0 esse eer e eee e eee eee ees + §3 
Anchovia perthecata, Silver Anchovy. .....- 6+ 6+ 0s eee eee e entree tenet ee eees 54 
Notogoneus OSCUMUS... 060 e cece erect een cette ttn ene n ees 55 
Phareodus testisocd sce evden cessed ens were ee dale Che ee ke ee gee ete eeew alee 57 
Deposits of Green River Shales, bearing Phareodus, at Fossil, Wyoming........ 58 
A Day’s Catch of fossil-fishes, Green River Eocene Shales. .........-.-.04-- 59 
Alepocephalus OgasSizit. 06.6... c cece een ene enn eee 60 
Coregonus williamsoni, Rocky Mountain Whitefish. ...............0. esse eee 63 
Coregonus clupeiformis, Whitefish. .....- 0.0.1. e cece center eee e cence 64 
Argyrosomus nigripinnis, Bluefin Cisco........ 0.200 sees cece een e eee eee 66 
Stenodus mackenziei, Inconnu...... 6-0-0 eee eee eee eee ence ee eee 67 
Oncorhynchus tschawytscha, Quinnat Salmon (female). ............ eee eeeee 69 
Oncorhynchus tschawytscha, King-salmon (grilse)............000eeee cence eens 7° 
Oncorhynchus nerka, Male Red Salmon... ........-. 00. secs ee ce eeeeeene eens “70 
Oncorhynchus gorbuscha, Humpback Salmon (female). . ...........2.0eeeeee 72 
Oncorhynchus masou, Masu. ......00 0c tee cee eee enneees 72 
Oncorhynchus nerka, Red Salmon (mutilated dwarf male after spawning)...... 76 
Oncorhynchus tschawytscha, Quinnat Salmon (dying after spawning).......... 77 
Oncorhynchus tschawytscha, Quinnat Salmon........ 6.00.00 cece eee eee eeee 19 
Salmo irideus shasta, Rainbow Trout (male)-............ 6 eee cece cece ewes 98 
Salmo irideus shasta, Rainbow Trout (female).............0 00 cece ee eee eee 99 
Salmo rivularis, Steelhead Trout. ......... 0000 cece eee eee eee eee eens IOI 
Head of Adult Troutworm, Dibothrium cordiceps. From intestine of white 
pelicans. yew eee Saeed pansy hinede neds Mesias Base eee S eae es 103 
Median segments of Dibothrium cordiceps. ........ 6000 cc cece cece cece eee aes 103 
Salmo henshawi, Tahoe Trout. .......... 006. c cece cece cnet teen ees 104 
Salmo stomias, Green-back Trout........... 0... cee e cece eee ees 105 
Salmo macdonaldi, Yellow-fin Trout of Twin Lakes... ..........0... 2000 eee 105 
Salmo clarkii spilurus, Rio Grande Trout........... 2... ccc cece cece ee eeee 106 
Salmo clarkii pleuriticus, Colorado River Trout............... ccc cece eee ees 106 
Huicho: blackistont, Moshi tds eis Pe baad iele Pokies hbase Vas bSSh Bees 107 
Salvelinus oquassa, Rangeley Trout... . 0... 6... coe ccc cece e eee ees 108 
Salvelinus aureolus, Sunapee Trout..... 0.2.06... e cece ences I0g 
Salvelinus fontinalis, Speckled Trout (male) .. ............00.0 00 cece c eee IIo 
Salvelinus fontinalis, Speckled Trout. ........... 0.0 ccc cece cece eee eee eene III 
Salvelinus malma, Malma Trout... ..... 60... cece eee cece enc eeeeceeees 113 
Salvelinus malma, Dolly Varden Trout... 2.2... 6... e cece cece eee cece 114 
Cristivomer namaycush, Great Lake Trout. ........ 00... cece cece eee ee eal. 
Plecoglossus altivelis, Ayu, or Japanese Samlet...............0..0000.00000., T16 
