Dr Enrique M. Rodríguez holds a PhD in Biological Sciences from the University of Buenos Aires, Argentina. He undertook his postdoctoral studies at Tulane University, USA. Currently, he teaches Comparative Animal Physiology as Full Professor at the University of Buenos Aires. He is also a Principal Researcher of the National Scientific Research Council, Argentina, and the author of more than 100 articles and book chapters. The species on which he has published most of his scientific works is Neohelice granulata.Dr Tomás A. Luppi is currently a Professor at the National University of Mar del Plata, Argentina, and Principal Researcher of the National Scientific Research Council, Argentina. Currently, he is serving as Vice-director of the Institute of Marine and Coastal Research at the National University of Mar del Plata. He attained a PhD in Biological Sciences in 1999, and is the author of more than 75 scientific articles and book chapters, most of them related to Neohelice granulata. His research interests focus on the natural history and ecology of decapod crustaceans.