426 



University of California Publications in Zoology [Vol. 21 



were all collected April 24 to 27, 1925. It will be noted then, that in 

 each case the growth of the last year was interrupted in the latter part 

 of April. The specimens of S. irideus had practically completed the 

 second year. The lengths are recorded in millimeters. 



TABLE 6 



Salmo irideus 



Natural History Museum, 



Leland Stanford Junior University. 

 Transmitted January 3D, 19:i6. 



