THE SALMON 



23 



family (Chipeidce) ; the Haplomi^ containing the Pikes 

 {EsocidcB) ; the Apodes^ including the Eel family 

 {AnguillidcE), and the Ostariophysi^ wherein are placed 

 the families of the Carps {Cyprinidce) and the 

 Loaches [CobitidcB). 



These will now be treated of in the sequence in- 

 dicated, and will then be followed by the more 



Fig. 5. — Caudal fin of a Trout, showing the upturned posterior 

 vertebrre and the rays supported by the hypurals or haemal 

 spines {h). 

 c. centrum ; n. neural spine ; ep. epurals (supra-caudal basalia). 



specialized orders, terminating with those fishes 

 which have lost the pneumatic duct and have 

 developed spinous fin-rays, and in which the pelvic 

 fins have migrated forwards to a position below or in 

 advance of the pectorals. 



The Salmon and its allies [S almo7iidce) are perhaps 

 the most interesting of all the groups of fishes ; they 

 are of great economic value, and the sportsman will 



