334 
ZOOLOGY. 
Description of a female salmon caught September 22, 1853, on a hranch of the Yahima river, 
Washington Territory, hy George Gibbs, esq. 
Inches. 
24 
Total length ■ 
Tip of nose to first dorsal fin • • 
Length of base of dorsal fin • • • 
Nose to adipose fin 
Length of adipose 
Nose to root of tail 21^ 
End of lower jaw to pectoral fin • 4 j 
Base of pectoral fin | 
To abdominal fin 12 
2^ 
1 
5 
Inches. 
To anal fin IT 
Base of anal fin 2 
To base of tail 22 
Girth before dorsal fin lO^ 
Girth before tail 4^ 
Length of head 4 
Circumference of head 9 
From eye to eye over back of head 2 
Length from orbit to nose 1^ 
Form slender, rounded; back and head dark olive, with black spots; sides silver gray, with 
purplish and green lights; belly silver white; Iris pale gold; head short, thick; jaws equal 
length; spines in dorsal fin 14 inches; a distinct lateral line; eggs nearly matured. 
A hunter told Mr. Gibbs that this fish is found altogether above the Cascades of the Columbia, 
and that they grow to one-third larger size. 
SALMO CONFLUENTUS, Suckley. 
Typical specimen in Smithsonian collection, Fishes, Ko. 1135. 
Syn. — Salmo confluent us, SuCKLEr, Ann. N. Y. Lye, Decemher, 1858. 
Sp. Cii. — Male: Form, stout; dorsal profile rising to a point just anterior to dorsal fin, then rapidly tapering to tail; dorsal, 
adipose and caudal fins profusely spotted; caudal broad and moderately lunated; adipose opposite anal, and much elongated; 
spots along the back and sides, generally linear, or V-shaped; others irregular, (but few round,) and covering from two to 
five scales ; the most common cover three scales, and are about half an inch in length; fins on under parts unspotted, as also 
all parts beneath the lateral line. 
A triangular bare projection of the chin anterior to the front teeth, as in the S. quinnat ; scales scarcely as large as those of 
S. truncaius. Teeth of irregular size, and not so closely disposed on the arms of the jaws and labels as in S. gairdneri; middle 
of dorsal fin nearly opposite a point at the middle of the total length. 
Differs from S. quinnat in having the tail but moderately lunated at the extremity, that of the latter being so deeply cut 
out as to be almost forked. 
Hah. — Northwest coast of America, entering the rivers for spawning purposes during the spring, and continuing throughout 
the summer. 
The typical specimen, from which the foregoing description was taken, is a dried skin, now 
in the Smithsonian collection, procured by the present describer from the Puyallup river, near 
Fort Steilacoom, Washington Territory, September 2T, 1856, and called by the Indians who 
saw it To-oh-odlt. The Indians seem to apply the same name to another species of salmon, as 
I have heard of a gigantic kind, only found in certain localities, which is also called To-oh-odlt. 
The colors of the specimen procured — an adult male — were evidently much changed by long- 
residence in fresh water, and the exhaustion consequent upon procreation. This was rendered 
evident by the altered appearance of the jaws and teeth, as well as by the lean condition of 
the fish. The colors, as they appeared, were as follows: Upper parts, dingy olive-green, 
profusely spotted with diagonal and confluent spots of dark brown, or black. Lower parts 
dingy yellowish white, unspotted, but tinged with a reddish band along the flanks. Dorsal, 
adipose, and caudal fins dark yellowish green, spotted profusely with dark brown or black. 
The examination of the dried skin shows branchial rays 13.14, as near as can be counted. 
