88 



THE ANGLER-NATURALIST. 



THE SHORT-SPINED STICKLEBACK. 



{Gasterosteus brachycetitnis*.) 



In the number of side-plates the Short-spined Stickle- 

 back agrees with the Smooth-tailed species; the plates also 

 do not extend beyond the limits of the pectoral fin. It is, 

 however, of much larger size, whilst the spines are con- 

 siderably shorter, and the vertebrse more numerous. 



Fin-rays : D. in. + 13 : P. 10 : A. 1-1-9: C. 12. 



THE EOUR-SPINED STICKLEBACK 



(Gasferostetis spinidoaus t) 

 is distinguished by having four spines on the back. It is 

 likewise exceedingly small, the figure being double the 



* hrachyeentrm, literally ' with short pricldes,' from brachtjs, short, 

 and centrm, a prickle, Gr. t spinuhsus, spiny, Lat. 



