HIGH SCHOOL ZOOLOGY. 61 



is land-lockecl in certain inland-waters, and the same is true of 

 the allied Gizzard-Shad (Dorosoma cepedianum) (Fig. 28). 

 The latter is of no value as a food-fish nor is the Moon-eye 

 (Hyodon) also allied to the Herring- family, but the Anchovies 

 (Engraulus) are much esteemed for their flavour. \ 



Fig. 28.— The Gizzard-Shad. Dorosoma cepedianum— vax. het^rurum. J. 



(U. S. F. C.) 



13. More familiar to inland residents is the family Esocidae, 

 a group which is found in the fresh waters of the northern 

 parts of both hemispheres. The largest representative is the- 

 Muskallunge, Esox nohilior, Thompson (Fig. 29), but the corn- 



Fig. 29.— The Muskellunge. Esox noMKor. ^. 

 (U. S. F. C.) 



mon species is the Pike, E. luciiis, which is marked with light 

 spots on a darker gi-ound. All the species are voracious and 

 are provided with a lai-ge mouth armed with strong teeth. The 

 body is slender and elongated, there is no adipose fin, the pseudo- 

 branchs are concealed and there are no pyloric cceca. As 



