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6 July 2017 A New Highly Modified Species of Creagrutus (Characidae: Stevardiinae) Apparently Mimetic of Prodontocharax
Andre Luiz Netto-Ferreira, Richard P. Vari
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Abstract

A new species of Creagrutus of the subfamily Stevardiinae is described from the Río Cachiyacu, a tributary of the Río Huallaga in Peruvian Amazon. The species demonstrates a number of pronounced differences from the typical species of Creagrutus, most notably: the ventrally displaced jaws, the compressed, spatulate dentition and anterior portion of the neurocranium, along with modifications of the digestive system and the swimbladder. Its assignment to the genus is, nonetheless, supported by both morphological and molecular evidence. The new species is apparently mimetic of Prodontocharax melanotus, which also occurs at its type-locality.

© 2017 by the American Society of Ichthyologists and Herpetologists
Andre Luiz Netto-Ferreira and Richard P. Vari "A New Highly Modified Species of Creagrutus (Characidae: Stevardiinae) Apparently Mimetic of Prodontocharax," Copeia 105(2), 368-374, (6 July 2017). https://doi.org/10.1643/CI-16-543
Received: 4 November 2016; Accepted: 1 April 2017; Published: 6 July 2017
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