Mi 



An eagle-ray ( Aetobatis nari- 

 nari) accompanied by a remora, 

 swimining close to the bottom 

 in the Caribbean Sea. Photo- 

 graph by I By Schwart. 



The head of a remora (Eche- 

 neis), showing the leaf -like 

 appearance of its dorsal 

 sucking disc. Photograph 

 Popper-Atlas-Photo. 



64 



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