THE STICKLEBACK 267 



THE TWO-SPINED STICKLEBACK* will serve as a type for 

 the whole Order. It is only about 7 inches long, and has 

 no commercial value. It is said to occur in quiet brackish 

 waters along our coast, but is seldom brought into notice 

 outside of aquaria. 



1 Gas-ter-os'te-us a-cu-le-a'tus. 



