50 CORA D. REEVES. 



5:10. She tries again to bury herself. A comes close to her, 

 tapping her side. 



5:11. She tries again to bury herself, again he taps her side in 



position here shown (K . 



5:12^. She buries herself, but again goes off and two small 

 males follow her as she swims to a point some three feet away 

 while A remains. 



During the last twenty minutes of the above record the same 

 female was under observation and it is probable that the same 

 one was in the area earlier, but watching the male made it im- 

 possible to follow the female in each case. This brilliant male 

 rarely left an area approximately two feet long and eight or ten 

 inches wide. During the first hour there were in this area but 

 four spawnings, in all of which this male took part. A comparison 

 of his activities with those of a small dull male is instructive. 



Fish B (Male). 



After choosing an especially small, dull specimen the following 

 notes were made, on May 22 : 



3:12 P. M. B is in area X (about a square foot in the center 

 of the stream which looks like a favorable spawning area, and is 

 a point from which to measure his movements). 



3:14. B moves down stream for a short distance toward a female 

 which is approaching X. 



3:15. He is back in X. 



3:15^2. B moves toward the side of the stream and follows a 

 female, but a large brighter male remains near her. 



3:17. B is again in X. 



3:18. B moves two feet back and to the side. 



3:18^. B is in X. 



3:21 P. M. He is driven away from Xby a small but brighter 

 male. 



3:23. B moves out to the side 18 inches, then one foot in front 

 of X; next 18 inches to the side of X. Every male seems to 

 drive him away. 



These records extend to 3:37^2 and show continuous move- 

 ments by B every one half to two minutes and extending in 



