NEW OR LITTLE KNOWN FISHES. 200. 



waters are very cold. Its water supply comes in large 

 part from the snow from the mountains which rise from 

 its shores in great majesty and almost completely surround 

 it. The fishing there is really magnificent, especially fly- 

 fishing. Several varieties of trout abound, but the blue- 

 back is the handsomest and gamest fish in the lake. 

 They afford one great sport. Those that the Admiral 

 took measured from twenty-eight to thirty-two inches in 

 length, and averaged about ten pounds each in weight. 

 He has doubtless furnished you with exact data regard- 

 ing his fine catch there." 



5. Salmo gairdneri beardsleei Jordan & Seale, n. subsp. 

 Blue-back Trout of Lake Crescent. Plate xxiii. 

 Head 3-f in length to base of caudal; depth about 4; 

 eye 4! in head, i| in snout; scales 24-130-20, 130 cross 

 series, those in front of dorsal numerous, about seventy 

 if counted along median line, sixty if the rows along up- 

 per side are counted; dorsal with 10 branched rays; 

 anal with 11 branched rays; branchiostegals 11; gill- 

 rakers 8 + 13, rather long and slender, the longest nearly 

 T 5 T inch in length, 7 to 9 in maxillary. Head pointed; 

 mouth rather large ; maxillary extending to hinder mar- 

 gin of eye, if in head, with about 20 teeth; snout 3I in 

 head; preorbital very narrow, the maxillary almost touch- 

 ing the orbit; posterior suborbitals shorter than eye, about 

 6 in head; opercle not very broad, equal to eye, its free 

 part 4f in head; interorbital width 3! in head, equal to 

 snout; several large teeth along margin of tongue; no 

 hyoid teeth; teeth on vomer in zigzag series. Origin of 

 dorsal in middle of the length, margin slightly concave, 

 the first ray if times last, the last ray being pointed, 

 slightly greater than base, 2 T 1 S - in head. Origin of anal 

 midway between origin of dorsal and base of caudal, mar- 

 gin straight, the tip of the last ray slightly exserted ; anterior 



