THE TRUE FISHES. 





ment. On the female leaving, he immediately enters, deposits th 

 the eggs, taking his departure through the back door. 5 

 is strictly pure; but I am afraid that moralin in stickleback b 

 rather lax order. No sooner has this lady, his first love, taken !. 

 ure, than he at once seeks another, introduces her as he did the 



Fig. 323.- Sea-stickleback {Spinachia spinachia) l, above; and threwpined stick! 



aculcatus) , below . 



on. wife after wife, until the nest is filled witl. , ..- layer upon I 

 being carefully deposited betwixt each stratum ol ova. 

 there should be two holes by which ingress and • can b. 



plished,so it is equally essential in another point of view. 

 U-eggs, running water is the first necessity ; and as the hoi, 

 ably placed in the direction of the current, a steadj stream 

 directed over them." 



