List of Illustrations xxi 



PAGE 



Etheostoma camurum, Blue-breasted Darter 231 



Liuranus semicintus and Chlevastes colubrinus, Snake-eels 233 



Coral Reef at Apia 234 



Rudarius ercodes, Japanese Filefish 241 



Tetraodon setosus, Globefish 244 



Dasyates sabina, Sting-ray 246 



Diplesion blennioides, Green-sided Darter 247 



Hippocampus mohnikei, Japanese Sea-horse ' 250 



Archoplites interruptus, Sacramento Perch 258 



Map of the Continents, Eocene Time 270 



Caulophryne jordani, Deep-sea Fish of Gulf Stream 276 



Exerpes asper, Fish of Rock-pools, Mexico 276 



Xenocys jessice 279 



Ictalurus punctatus, Channel Catfish 280 



Drawing the Net on the Beach of Hilo, Hawaii 281 



Semotilus atromaculatus, Horned Dace 285 



Leuciscus lineatus, Chub of the Great Easin 287 



Melletes papilio, Butterfly Sculpin 288 



Scartichthys enosinuz, a Fish of the Rock -pools of the Sacred Island of Eno- 



shima, Japan 294 



Halichares bivittatus, the Slippery Dick 297 



Peristedion miniatum 299 



Outlet of Lake Bonneville 303 



Hypocritichthys analis, Silver Surf-fish 309 



Erimyzon sucetta, Creekfish or Chub-sucker 315 



Thaleichthys pretiosus, Eulachon or Ulchen 320 



Plecoglossus altivelis, the Japanese Ayu 321 



Coregonus clupeijormis, the Whitefish 321 



Mullus auratus, the Golden Surmullet 322 



Scomberomorus maculatus, the Spanish Mackerel 322 



Lampris luna, the Opah or Moonfish 323 



Pomatomus saltatrix, the Bluefish 324 



Centropomus undecimalis, the Robalo 324 



Cluzlodipterus faber, the Spadefish 325 



Micropterus dolomieu, the Small-mouthed Black Bass 325 



Salvelinus fontinalis, the Speckled Trout 326 



Salmo gairdnert, the Steelhead Trout 326 



Salvelinus oquassa, the Rangeley Trout 326 



Salmo rivularis, the Steelhead Trout 327 



Salmo henshawi, the Tahoe Trout 327 



Salvelinus malma, the Dolly Varden Trout 327 



Thymallus signijer, the Alaska Grayling 328 



Esox lucius, the Pike 328 



Pleurogrammus monopterygius, the Atka-fish 328 



Chirostoma humboldtianum, the Pescado bianco 329 



