FISHES OF NEW YORK 251 



length of head; gill rakers short and stout, about 18 on the first 

 arch, of which 13 are below the angle; vomerine teeth in two 

 long, alternating series; hjoid teeth rather weak, in a small 

 patch; dorsal fin small, its last rays two thirds as long as the 

 highest; anal fin rather high; caudal short and distinctly forked. 

 D. 9 to 11; A. 12; B. 10. Scales 27 to 37-160 to 200-27 to 40; 

 pyloric caeca 50 to 60. 



Color dark green in life, varying to pale green; the sides sil- 

 very with a broad coppery shade which extends also on the 

 cheeks and opercles; a yellowish tinge on the sides of the lower 

 jaw and red or orange dashes between its rami; back every- 

 where covered with large, roundish black spots; dorsal, adipose 

 fin and caudal fin with similar spots, and a few on the anal; 

 belly with black spots. 



The Tahoe trout is a large species inhabiting Tahoe lake. 

 Pyramid lake, Webber lake, Donner lake. Independence lake, 

 Truckee river, Humboldt river, Carson river, and most streams 

 of the east slope of the Sierra Nevada; it occurs also in the 

 head waters of Feather river, west of the Sierra Nevada, prob- 

 ably by introduction from Nevada. 



The usual weight is 5 or 6 pounds, but individuals weighing 

 20 to 29 pounds are recorded. 



Eggs of the Lake Tahoe (Cal.) trout were obtained by James 

 Annin jr at Caledonia N. Y., and young fish reared at his 

 establishment were sent to the aquarium in November 1896. 

 They throve till the latter part of June 1897, when they were 

 overcome by the warm water. They could not endure a transfer 

 to the cooler salt water, like most of the other fish of the salmon 

 family. 



At Caledonia station, according to Mr Cheney, this fish begins 

 to spawn before the middle of March and continues for two 

 months. The impregnation of eggs is from 90;^ to 95;?^, but just 

 before the hatching period a large number of the eggs burst and 

 the embryos are lost. There is loss too between the hatching 

 and feeding times, and the fry do not feed as readily as the 

 brook trout. Altogether, Mr Annin, the superintendent of 



