Feeding ecology and abundance of two sympatric skates, the shortfin sand skate Psammobatis normani McEachran, and the smallthorn sand skate P. rudis Gunther (Chondrichthyes, Rajidae), in the southwest Atlantic
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Feeding ecology and abundance of two sympatric skates, the shortfin sand skate Psammobatis normani McEachran, and the smallthorn sand skate P. rudis Gunther (Chondrichthyes, Rajidae), in the southwest Atlantic