94 U. S. BUREAU OF FISHERIES. 
as our eastern brook trout. Itis by some regarded highly as a game 
fish, taking either bait or artificial fly. The best fly fishing is usually 
toward night. As a game and food fish it is in its prime from May to 
September. Its flesh is very agreeable in flavor. Spawning begins 
in October. 
The brown trout has a rather extensive distribution in the park, 
although only a single plant of 9,300 fish was made in Nez Perce 
Creek in 1890. The fish now inhabits the Madison, Gibbon, and Fire- 
hole Rivers. In the last named it is found from its junction with the 
Gibbon to Keppler Cascades and is particularly numerous in Nez 
Perce Creek, Little Firehole River below Mystic Falls, and Iron 
Creek. In the main streams fish have been taken weighing up to 8 
pounds. In the park, as elsewhere, the brown trout has the reputa- 
Fig. 6.—European brown trout; Von Behr trout. 
tion of beg antagonistic to other trouts and of increasing in size 
and abundance at the expense of the others. 
Mary Trowbridge Townsend, in her interesting article on trout 
fishing in the park (1. c.), mentioned a brown trout from the Firehole 
River: 
A good 4-pounder, and unusual marking, large yellow spots encircled by black, 
with great brilliancy of iridescent color. * * * Itookafterwardsseveral of the same 
variety, known in the park as the Von Behr trout, and which I have since found to 
be the same Salmo /fario, the veritable trout of Izaak Walton. 
7. Laxe Trout; Macxinaw Trout (Cristwwomer namaycush). 
The lake trout, otherwise known as laker, lunge, togue, Mackinaw 
trout, etc., is of wide northern distribution. In British America it 
ranges from the Atlantic to the Pacific coasts and northward to the 
Arctic Ocean. In the United States it is found in many of the larger 
and deeper lakes in New England and New York, in the Great Lakes 
Basin, and in a few localities in the Western States, as Montana and 
Idaho. It occurs also in Alaska. It has also been spread by fish- 
cultural operations into waters where it did not previously exist. 
The lake trout owes its presence in the park to two plants of 30,000 
and 12,000 fingerlings in Shoshone Lake and Lewis Leake respectively, 
in 1890. The fish is now common in those waters, especially around 
the shores, and was formerly taken in large quantities to supply the 
park hotels. It is found also in the ‘canal’ connecting the two 
large lakes. In some waters it attains a very large size. Examples 
weighing over 100 pounds have been reported from the Great Lakes, 
