2)2 S.MITHSONIAX MISCELLAX KOUS COLLECTIONS VOL. 63 



Mr. Ridgway's residence in this locality during the winter has 

 been of extreme interest ; it is the first time he has had an opportunity 

 to make natural history observations since his first trip to this region 

 forty-seven years ago. He was thus enabled to compare present 

 conditions with those existing on the occasion of his first visit, and 

 has secured some valuable information for incorporation in his ex- 

 haustive monograph. 



FISHES FROM THE REGION OF QUATERNARY LAKE 

 LAHON'i'AN 



The Museum has received through the Bureau of Fisheries a col- 

 lection of fishes from the various river and lake basins that were 



Fk;. 32. — A breakfast catch of Tahoe Trout. 

 Photograph by Snyder. 



at one time connected with the quaternary Lake Lahontan. Twenty- 

 one species are represented, 15 of which are native fishes, including 

 not onlv all that are now known to inhabit the basin, but also 5 that 

 are as yet undescribed. The collection was made by John O. Snyder, 

 of Stanford University, while engaged in an investigation of the 

 region under the direction of the Bureau of Fisheries. 



Lake Lahontan, which in quaternary time was a large body of 

 water, very irregular in shape, extended over a considerable part of 



