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JB^gs^isagSays^- 



THE STEEL HEAD. 



THE SALMON TROUTS, 



The glad trout is roaming in every clear stream 



And the grilse and the Salmon now drink the May flood. 

 Then anglers be up with the sun's early beam. 

 Let your flies be in trim and your tackle be good. 



Chatto : The North County Angler, 1883. 



' I ^HE near allies of Sal/no salar, which occurs on the Pacific slope, are 

 set aside by Jordan in subgenus to be called either Salar or Fai-io, 

 which is distinguished from the typical Salmo by an exaggerated develop- 

 ment of the teeth upon the vomer or plough-share bone in the roof of the 

 mouth, and also by a much less pronounced difference between the males 

 and females in the breeding season. 



These fishes are so closely allied, and are likely to be of so much inte- 

 rest in the near future, that I think it proper to print a table of their 

 affinities j^repared by Dr. Bean : 



SPECIES OF SALMON. 



A. Sea salmon, anadromous. Subgenus SALMO. 



No hyoid teeth ; vomerines little developed, sometimes deciduous ; scales large ; caudal forked except 

 in the old ; lower jaw of breeding males hooked upward and received into or through upper jaw; 

 gill-rakers short, 19 ; vertebrae 27-31. Salmo salar. The Atlantic Salmon. 



.1.-!. River salmon, not anadromous. Subgenus FARIO. 



b. No hyoid teeth. 



c. Scales large, fewer than 140. 



d. American species : silvery, with usually small black spots; abroad median crimson band inbreed- 

 ing males ; opercles with few spots or none. 

 e. Anal rays 12; depth of body equals length of head in young gill-rakers 7-10-12-13; coeca 

 50-62. S. Gairdneri. The Stehlhead Salmon. 



ee. Anal rays 10 ; depth of body much exceeds length of head in young ; gill-rakers 8-42 : coeca 

 45-70 . S. irideus. The. Rainbow Trout. 



