FTFTEEN-SPINED STICKLEBACK. 



87 



ACANTHOPTERYGU. 



WITH HARD CHEEKS. 



THE FIFTEEN-SPINED STICKLEBACK. 



GREAT SEA ADDER, Cortiwall. BisMORE, Orkney. 



Gasterosteus spinachia, Linn«us. 



,, ,, Block, pt. ii. pi. 53, fig. 1. 



„ ,, Cuv. et Valenc. Hist. Nat. des Poiss. t. iv. p. 509. 



,, ,, Fifteen-spined Stickleback, Penn. Brit. Zool. vol. iii. 



p. 356, pi. 61. 

 Don. Brit. Fish. pi. 45. 

 Spinachia vulgaris, Flem. Brit. An. p. 219, sp. 165. 



This Stickleback, much more elongated in its form than 

 any other of the British species, was first described and figured 

 by Schonevelde, whose name as a naturalist has been men- 

 tioned before. It appears to be even more numerous north- 

 ward than around the British Islands ; and is found on 

 the coast of Norway, as well as in the Baltic. Mr. Low 

 includes it in his Fauna Orcadensis, and says it is found 

 very frequent ; and it has its Orkney name, quoted above, 

 from the kind of balance there made use of, called bismores. 

 Mr. Neill and Dr. George Johnston have taken it in the 



