she was about ready to drop the fish. At 

 this point the female went to the male and 

 attracted their attention to herself. She then 

 placed herself in a position near the bottom 

 of the aquaria and the males took their places, 

 one each side of her, with their heads pointing 

 to her tail. The males then backed off, and 

 both together punched the female in the rear 

 and distended part of her body with their 

 heads. This evidently produced the desired 

 effect, for she immediately deposited a little 

 fish, which immediately swam into the plants 

 in the aquaria. She dropped another, which 

 also hid itself among the plants. The males 

 evidently thought their part of the work was 

 done, for they paid no more attention to their 

 mate. 



In about a half hour the female again sought 

 the male;, and the operation was repeated 

 exactly as in the formier case. This kent 

 up for about three hours, when the female 

 had finally deposited ten young fishes. 



At each delivery of young, the female de- 

 posited two fish, and each time the males 

 left her until recalled to do the work which 

 was expected of them by the female. 



The young fish kent themselves well pro- 

 tected in the plants, which wera myriophyllum, 

 and remained nractically hidden away for two 

 days, when we removed the parents. At this 

 point five of the young died. As soon as 

 the large fish were taken out of the tank the 

 young ones disported themselves in the open 

 water, and as far as we have noticed up to 

 this date, June 14th- have not again hidden 

 themselves in the plants. 



In two or three instances, when the young 

 fish were deposited by the female, they re- 

 mained curled up like a round ball, and the 

 female picked them up in her mouth and 

 nibbled them. When they were opened up 

 she spat them out and then they swam away. 



The parent fish evidently paid no attention 

 to their offspring after they were born, but 

 the young evidently thought it wise to hide 

 awav for protection. 



When the fish were one day old, we fed 



