348 
ZOOLOGY. 
SALAR, Yalenc. 
Gen Ch —All the characters of the salmons, but differing from them as well as from the genus Fario in being provided 
with a double row of teeth upon the shaft of the vomer, whilst the front of that bone is smooth and toothless. 
Stn. — Salar, Valenc. in Cvv. Sf Val. Hist. Nat. des Pois. XXI, 1848, 314.— Grd. in Proc. Acad. Nat. Sc., Philad. VIII, 
1856, 219. 
(SALMO,) SALAR LEWISI, Grd. 
Missouri Trout. 
Plate LXXII. 
Sp. Ch.—B ody rather thickish upon the middle region ; head moderate, constituting a little less than the fifth of the 
total length; maxillary gently curved ; its posterior extremity reaching a vertical line drawn immediately behind the orbit. 
Anterior margin of dorsal fin a little nearer the extremity of the snout than the base of the caudal fin. Ground color of the 
upper region bluish gray, of the inferior region orange or yellow. The back, perduncle of the tail, dorsal, adipose and 
caudal fins are spotted with black. The belly and lower fins are unicolor, a deep orange hue existing along the rays, and 
also in the shape of a dot upon the abdominal scales, and which disappear in alcohol. 
Stn. —Salar lewisi, Grd. in Proc. Acad. Nat. Sc. Philad. VIII, 1856, 210.—Ib. Gen. Rep. Fishes. 
The present species was first noticed by Lewis and Clark, who took them at the falls of the 
Missouri river, and expressly noticed the absence of red spots upon them, which are replaced 
by black. 
I made a journey of thirty miles expressly to obtain specimens of these trout, and succeeded 
in taking with the “fly” some half dozen, two of which were preserved, and were the typical 
individuals upon which Dr. Girard described the species. They were taken at a point just 
below the falls above mentioned, and are doubtless the same as those got by Lewis and Clark. 
The individuals procured by me averaged about one pound in weight. Some doubtless attain 
a much greater size, perhaps reaching four or five pounds. Many trout were found in the 
Rocky mountains, most numerously, however, west of the dividing ridge, in the small tributaries 
of Clark’s Fork. In general appearance they seemed identical with this species, but no 
critical examination was made, the specimens procured having been destroyed in transitu. If 
they are found to be identical in species, the S. lewisii will then be included in the fauna of 
Washington Territory. 
THALEICHTHYS PACIFICUS, Grd. 
Tlie Eulaclion. 
Plate LXXV, Figs. 1-4. 
Sp. Ch. —Head sub-conical and pointed. Mouth large ; posterior extremity of maxillar bone extending to a vertical line 
drawn posteriorly to the orbit. Eye rather small. Adipose fin placed opposite the posterior portion of the anal, which is 
quite elongated. The insertion of the ventral fins is situated considerably in advance of the anterior margin of the dorsal. 
Scales moderate, sub-elliptical. Dorsal region, dark grayish olive ; middle of flank, yellowish orange dotted with black ; belly 
yellowish, unicolor ; upper surface and sides of head grayish ; fins, unicolor. 
Syn. —Thaleichthys stevensi, Grd. Gen. Rep. Fishes. 
Salmo (mallotus) pacificus, Rich., F. B. A. 
To Sir John Richardson’s account of the Eutachon but little can be added. They formerly 
entered the Columbia river in great numbers, and were equally abundant in Puget Sound. At 
present, although sparingly found in the waters named, they cannot be considered as occurring 
in large numbers south or east of the southern end of Vancouver’s Island. In the latter 
locality they are very abundant in certain seasons, but nearly always a season of abundance is 
followed by three or four years of scarcity. Further northward they are constantly abundant. 
The Haida, Stickene, and Chumtseyan Indians, living along the coasts of British and Russian 
