FISHES 133 



Bat Fishes (Onchoce phalidae) and Angler Fishes (Lophiidae) 

 it is short and thick, whilst it may be very deep and com- 

 pressed as in the Angel Fishes. 



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Sting-Rays 



The Flatfishes (Order Heterosomata), which live on sandy 

 or muddy bottoms, are characterised by having their 

 bodies flattened from side to side. Since they swim 

 horizontally and not vertically as do other fishes, an equal 



