308 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY - IV. 



id. Eye quite small, much smaller than in young Quinnat of the 

 same si/e. Suborbital very narrow, with a row of mucous pores along 



Mirface. Maxillary slender and narrow, but extending somewhat 

 beyond the eye. Teetli very few and small, only two or three on the 

 vomer; those on tongue very feeble. Gill-rakers 10+13, rather long 

 and slender, nearly as long as eye, toothed. Fins small. Pectorals 

 and ventrals short, the ventral appendage three-fifths the length of the 

 tin: caudal strongly forked, on a slender peduncle. Head 4; depth 4. 

 15. 13-14. Pylorie cceca very few and large, C3 (45-80); scales 25-ll'T- 

 L".. D. 10; A. 13-14 (developed rays). L. 15 inches. Weight 3-8 

 pounds. A small salmon, ascending streams in the fall to no great dis- 

 tance. Abundant from San Francisco northward. 



3almo Teiautch W&Va&wai, Artedi Pise. 1?!)^, 70: Sulmo kyvtttuch Blocli & Schneider, 

 IH'1. -1 ( >7: Salmo xanyuittolaitiiH I'allas, Xougr. Ross. Asiat. iii, 37U: Oiicorliyiwhus san- 

 t/iiiinilnitim ( liint In-r, vi, 160 : Oncjrhynchus lyraodon Glinther, vi, l.">r>, iii part: Salmo 

 *<"il<ri Snrklcv. Mtmogr. Saltno, 94 : Salmo tsuppiich Richardson, Fauna Bor.-Amer. 

 iii. -JJt, l~.:ij: Salmo tsuppitch Giinther, vi, 118 (not of Jordan, Proc. U. S. Nat. Mus. i, 

 ?;.', 1876,= Salmo purpuratua')] Oncorhynchus tsiqtpitch, Jordan, Fore.it aiid Stream, Sep- 

 teuiber \->. 1 ". i:'0.) 



** Gill-rakrrs comparatively long and numerous (30 to 40 in number); scales large, 

 in about 130 serit s. 



5O3. O. Bicrka (Walbaum) Gill & Jordan. nine-lack Salmon; Eal-fish; Prater's 

 Hinr Salmon; Sugk-ey e Salmon ; Krasnaya Ityba. 



Color clear bright blue above; sides silvery, this hue overlying the, 



blue of the back; lower fins pale, upper dusky; no spots anywhere in 



adults in spring; the young with obscure black spots above; males 



deep crimson red in the fall; the fins blackish, the caudal then often 



speckled with black; young breeding males ( u Kcnncrhjl^} often sharply 



spotted. Dody elliptical, rather slender. Head short, sharply conic, 



pointed, the lower jaw included. Maxillary rather thin and small, ex- 



tending beyond eye. Teetli all quite small, most of them freely mova- 



ble: vomer with about <i weak teeth, which grow larger in fall males, in- 



-ie;id of disappearing. 1'reopercle very with- and convex: opercle very 



short, not strongly convex. 1'reopercle more free behind than in 0. 



cli'inirlni. Ventral scale about half the length of the I'm : caudal fin nar- 



row, widely forked: ;mal tin lung and low; dorsal low. Flesh deep red. 



Mali's becoming extravagantly hook jawed in the fall, the snout being 



then prolonged and much raised above the level of rest of head, the 



lower jaw produced to meet it. .Mandible l.\ in head, in fall males, ]'* in 



females; snout L'| in head, in fall males, :\.\ in females. .Head 4; depth 4. 



<'. ill rakers as long as eye, more numerous than in any other of our sal- 



mon. usually 1G-123. L. 11 + 13. I). 11; A. 14j scales L'0-133-20; 



