figures as they may be either S. clarkii (Richardson) or 
De gairdneri Richardson, 
Salmo gairdneri Richardson. Vag. Uf. 
i 
Painting of one from Walla Walls on July 16, 1841. 
Oncorhynchus tschawytscha (Walbaum). °c 
Painting by Drayton from example from the Willemmette 
Falls, June 12, 1841. Example 3 ft. 10% inches in length. 
the notes state "some of these fish are much darker than 
the above, and some lighter and more silvery on the belly. 
They are very numerous at the falls and hundreds are seen 
at one time heaping in the riffled water and trying to: as- 
cend. Some get up over the leper falls. They often leap 
to 10 feet out of water, some 15 feet, directly under the 
falls. Only this hind here in May and June, July and Aug- 
ust two others come up. Also wash drawing, probably of this 
species. 
Argentinidae. 
Retropinna retropinna (Richerdson). 
Head 4 1/3 to 43; depth 5¢ to 5 2/5; D. iii, 9, or 10; 
A. iii, 17 or 18; scales 56 to 58 in lateral series to caudal 
base and 4 more on latter; 12 scales transversely at dorsal 
