REPORT OF COMMISSIONERS OF INLAND FISHERIES. 91 



carried doAvn ventrally in such a way as to be scarcely visi])le from 

 the side. 



In the pigmentation this stage differs consideral^le from the one 

 just descril^ed. Chromatophores are present in greater nu miners on 

 every part of the fish. Those on the lateral line have increased in 

 numbers so as to extend along nearly its whole length, and two new 

 groups have been added, one just under the spinous dorsal, the other 

 just in front of the base of the caudal fin. Thus to the naked eye the 

 fish of this stage looks darker than one of the preceding, and the 

 dusky bands on the side have increased to four. A row of branched, 

 anastomosing chromatophores runs vertically along the base of the 

 caudal fin-rays. A similar row of network-like chromatophores lies 

 all along the base of the anal fin. Two or three rows of very compact 

 chromatophores run along the back parallel to the insertion of the 

 dorsal fin; three or four short lines of color cells run longitudinally 

 on the top of the head. Two or three branched, somewhat tenuous 

 pigment cells lie in the fin-membrance of the spinous dorsal. Scat- 

 tered chromatophores occur along the gill-covers, on the upper and 

 lower jaws, and on various other parts of the body. 



