FIG. 7-1 Pond animals (from Shelford 1913). 



Representative animals of the emerging associa- 

 tion, a, the common newt; b, the common pond 

 snail; c, a predaceous diving beetle. 



An Amphipod 



(Right) Representative animals of the submerged 

 vegetation, a, a viviparous snail; b, a green sun- 

 fish above a yellow perch, both juvenile; c, a 

 shrimp; d, a winter body, or statoblast, of the 

 gelatin-secreting polyzoan. 



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