62 REPORT OF STATte BOARD OF FISH COMMISSIONERS. 



DESCRIPTION OF THE GOLDEN TROUT OF KERN RIVER. 



SALMON MYKISS AGUA BONITA. 

 By David Starr Jordan. 



I have lately received from Mr. W. H. Shockley, of San Francisco, 

 three specimens, each about 7 inches in length, of the Golden trout of 

 Kern River. These specimens were taken by Mr. Harvey, of Lone Pine, 

 California, in a stream called by him Whitney Creek, on the west side 

 of the Sierra Nevada, near Mount Whitney. The specimens were sent in 

 ice to Mr. George T. Mills, Fish Commissioner of the State of Nevada, 

 who forwarded them to Mr. Shocklev. The following is a detailed 

 description : 



Salmo Mykiss Agua Bonita. New sub-species. 



Head, 3| in length; depth, 4^ D. 2, 12; A. 1, 10. Scales, 130 to 200 

 rows; 121 to 124 pores. Length, 7 inches. 



Body formed about the same as usual in Salmo mykiss and its varie- 

 ties. Head rather long, bluntish at tip; mouth moderate, the maxil- 

 lary extending a little beyond the eye, If in head. Hyoid teeth not 

 evident; opercle moderate. Its greatest length 4^ in head; its posterior 

 margin moderately convex. Eye, 4| in head; snout, 4i; gill-rakers not 

 very short, x+H or 12 in number. 



Scales extremely small, smaller than in any other species of Salmo. 

 Fins moderate; the anal high, the caudal moderately emarginate; pec- 

 toral, ly in head; ventral, 2; caudal, If. 



Olive above; sides and belly light golden; about twelve dark cross- 

 bars on middle of sides; these the usual parr-marks; middle of sides 

 along lateral line with a deep scarlet lateral stripe, broadest under the 

 dorsal, where it is about as wide as eye; thence narrowing to either end, 

 and not reaching either head or caudal; middle line of belly with a 

 broad scarlet band, extending from chin to anal fin, equally bright all 

 the way; a fainter shade along lower side from anal fin to tip of caudal; 

 no crimson dash at throat between branches of lower jaw; the whole 

 region uniform bright orange; opercle largely orange. 



Dark spots chiefly posterior, as in spilurus and pleuriticus, large and 

 well marked, some as large as pupil on tail and posterior part of body; 

 smaller and well marked on dorsal; a few small ones scattered along 

 forward to the head in two specimens; none on body before adipose fin 

 in the other. 



Upper anterior angle of dorsal abruptly yellowish white; this color 

 edged by a dark oblique streak, made by coalescent spots; the rest of 

 the fin light olive with four or five rows of small black spots; pectorals 

 light orange; ventrals deep orange, with a faint blackish tip; the ante- 

 rior edge of the fin conspicuously and abruptly whitish, as in Salvelinus 

 fontinalis; anal dusky orange, the tips of the last rays blackish, the 

 outer anterior corner abruptly white, the white stripe widei: than the 

 pupil, and separated from the color of the fin by a dusky shade. 



