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♦ ¹Temporal and sexual eVects in the feeding ecology of the marbled sand skate Psammobatis bergi Marini, 1932, M. J. San Martin, J. M. Braccini, L. L. Tamini, G. E. Chiaramonte, J. E. Perez, Mar Biol (2007) 151:505–513
♦ ²Food habits of Dipturus chilensis (Pisces: Rajidae) off Patagonia, Argentina, M. Koen Alonso, E. A. Crespo, N. A. García, S. N. Pedraza, P. A. Mariotti, B. Berón Vera and N. J. Mora, ICES Journal of Marine Science, 58: 288–297. 2001