320 NATUEAL HISTORY COLLECTIONS IN ALASKA. 



darker as the Hue is approached. Above h^teral liue the color chauges to a bright metallic steel 

 blue, becoming very iutense as the luedian dorsal line is approached. Along the dorsal line, how- 

 ever, the color is a dull bluish-olive, produced by a heavy olive shade over the blue. Top of head 

 dark olive, fading into silvery on sides, which are finely and thickly sprinkled with dark dots. 

 Below white. Iris A-ery pale golden-yellow. 



? :]-2Si7. ( 19. ) Norton Sound, July 20, ld77. 



iSlendtr Salmon. Male. — Length, 25 inches ; depth, 5 inches. 



Back olive green, with a silvery luster on each scale. The olive fades away below the lateral 

 line, but is invaded from below by irregular blotches of light silvery or of a delicate rosy pink, 

 which extends from the abdominal region. Top and sides of head tinted olive green, fading as on 

 body. A faint coppery tint to the silvery on opercular bones. The lower surface is made darker 

 by the numerous fine dots. Dorsals, pectorals, and caudal dull clayey olive. Ventrals olive with 

 a light spot on tip. Anal bluish-olive, with similar light spot on tip. 



;W>;iT. Lotality not stated. 



-17. Oncoehynghus gorbuscha (Walb.). Humpbacked Salmon (Gorhiisl-a of Paissian; 

 Esk. TiUK-tuk). 



29890. (224.) Saiut Michaels, Jitly 27, 1830. 



^ Dorsal surface dull olive bluish, with a tinge of purple along side on lateral line. L'pper 

 finsand tail uniform bluish olive. The bluish of the up])er surface becomes rapidly replaced 

 by white below the lateral line, but the whole side has a dingy bluish-white appearance, though 

 each scale is silvery white. Top of head greenish olive; sides of same purplish olive; beneath 

 pure white. Pectoral fins bluish black, with white base close to body. Ventrals : Anterior halt 

 of upper surface a little lighter than pectorals, the rest of this fin dingy white. The dorsal sur- 

 face above lateral liue, from occiput to tail, including dorsal fin, and the entire tail irregu- 

 larly but profusely marked with oblong black spots at intervals of about one-fourth to one-third 

 of an inch. The spots on the back have their greatest diameter at right angles to the lateral line. 

 On the tail the spots are rather more numerous, are rounder, and have their longest axis parallel 

 to the lateral line. The spots on the back are about twice as long as wide. Iris pale yellow. 



(In a specimen fresh from water the whole upper half with fins is strongly shaded with a 

 purplish or reddish tint.) 



29891. (226.) Saint Michaels, July 29, 1880. 

 29897. (222.) Saint Michaels, July 24, 1330. 



Young male. This species is rather uncommon here but very numerous at this season at 

 Uualakleet. 



The Gorhusla are first taken about the middle of June along the coast of Bering Sea, and are 

 rather numerous until the end of July, with more or less common stragglers until late in fall. They 

 run at the same time and in about equal numbers in the rivers well into the interior. The 

 Gorhuslca is less regular in its appearance than the other species of small salmon in the Yukon. 

 Some years only a few will be taken, and again they will run in such excessive numbers iii the 

 Lower Yukon that the wicker fish-traps must be emptied several times a day. The flesh of this 

 species dries orange yellow. This is the least palatable of the salmon, being dry and tasteless. 



48. Clupea mikabilis Girard. Herring (Esk. t-hithhi-iWi-pid-). 

 29887. (295-302.) Saint Michaels, June 16, 1881. 

 Herrings from S])awning bed on reef. 



32872. (53.) Saint Michaels, spring, 1877. 

 On June 9, 1877, I saw a large school of herrings in Unalaska Harbor, and on the 10th of the 

 same month and year they were noted for the first time that season at Saint Michaels, in Norton 



