XII COXTEivTS. 



Page. 



Order IV. Physostomi or M^ilacoptcri — Coi.timieJ. 



Gila 284 



1. Gila nilnista 285 



2. Gila elegans 28G 



3. Gila gracilis 287 



Tigoma 288 



1. Tigoma conformis 289 



2. Tigoma bicolor 289 



3. Tigoma obcsa 290 



4. Tigoma hiimboKIti 291 



5. Tigoma egregia 291 



6. Tigoma lineata 292 



7. Tigoma gracilis 293 



8. Tigoma crassa 293 



Cheonda 294 



1. Cheonda coopeii 294 



2. Cheonda coerulea 295 



Siboma 296 



1. Siboma craesicauda . 296 



2. Siboma atraria 297 



Ptychochellus 298 



1. Ptychocheilus orcgonensis 298 



2. Ptychocheilus grandis 299 



3. Ptychocheilus rapax 300 



4. Ptychocheilus vorax 301 



Clinostomus .- 302 



Family Cypi inodontidae .... ... . 302 



Fundulus 303 



Fuudulus parvipinuis 303 



Family Esocidae 304 



Family Salmonidae 304 



Salmo 305 



1. Salmo scouleri 305 



2. Salmo quinnat 306 



3. Salmo spectabilis 307 



Fario 308 



1. Fario aurora 308 



2. Fario tsuppitch 310 



3. Fario argyreus 312 



4. Fario gairdneri .... — 313 



6. Fario clarkii 314 



6. Fario stellatuB 316 



Salar 318 



1. Salar lewisi 318 



2. Salar virgiualis 320 



3. Salar iridea 321 



Osmcrng 323 



Osmerus prctiosus ... 324 



Thaleichthys 325 



Tbaleichthys stcvensi .. 325 



Corcgonua 326 



CoregOQus williamsoni 326 



Family Scopelidae 328 



Sauius (Laurida) lucioceps 328 



Family Clupeidae 328 



