The typical hunting strategy of the diamond stingray is to cruise just above the sea floor , landing atop any prey encountered . It then quickly lever its body up @-@ and @-@ down with its disc , producing negative pressure to extract the prey from its burrow . This ray have also been known to excavate large pits by undulating its disc and spitting jets of water , so as to uncover buried prey . Diamond stingrays are frequently trailed by smaller fishes , including Mexican hogfish ( Bodianus diplotaenia ) , Galapagos porgies ( Calamus taurinus ) , greybar grunts ( Haemulon sexfasciatum ) , spinster wrasses ( Halichoeres nichols ) , and long @-@ spine porcupinefish ( Diodon holocanthus ) , which take advantage of the invertebrates stirred up by the ray 's activities . Known parasites of this species include the tapeworms Acanthobothrium bullardi , A. dasi , A. rajivi , and A. soberoni , Anthocephalum currani , Parachristianella tiygonis , and Pseudochristianello elegantissima , the flukes Anaporrhutum euzeti and Probolitrema mexicana , and the monogenean Listrocephalos kearni .