Sousa, Leandro M. & Rapp Py-Daniel, Lúcia H., 2005, Description of two new species of Physopyxis and redescription of P. lyra (Siluriformes: Doradidae)

Sousa, Leandro M. & Rapp Py-Daniel, Lúcia H., 2005, Description of two new species of Physopyxis and redescription of P. lyra (Siluriformes: Doradidae), Neotropical Ichthyology 3 (4), pp. 625-636

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http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000400019&lng=en&tlng=en

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Physopyxis     626-627
Physopyxis lyra     628-630
Physopyxis ananas   new species  630-632
Physopyxis cristata   new species  632-633