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New Species of Brazilian Catfish Discovered and Described

Pareiorhina hyptiorhachis discovered in the Rio Rio Paraíba do Sul basin of Brazil.

Junly 10, 2013

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A new species of catfish has been discovered in Brazil that looks like a miniature plecostomus. Pareiorhina hyptiorhachis (hyptios = supine, lying on the back, and rhachis = ridge, midrib) was discovered in the waters of the Rio Rio Paraíba do Sul basin and is of the family Loricariidae, which are characterized by bony plates on their bodies and sucker mouths. It is different from other species in the genus due to the presence of a postdorsal ridge on the fish's posterior to the dorsal fin. It has a completely naked abdomen, meaning no bony plates protecting it. Pareiorhina hyptiorhachis is about 3 to 3.5 centimeters in length.

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Pareiorhina hyptiorhachis

Pareiorhina hyptiorhachis. Photo by Gabriel de Souza da Costa e Silva; CC-BY 3.0

It was found in moderate to fast flowing streams with rock and sand substrate. The fish was collected near loose stones on the streambed. It was discovered and described by Brazilian scientists Gabriel de Souza da Costa e Silva, Fábio Fernandes Roxo, and Claudio Oliveira.


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The complete paper on Pareiorhina hyptiorhachis can be found on the open access journal Zookeys.

 

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Reader Comments

Carl    Livermore, CA

7/10/2013 3:52:36 PM

Sounds like an interesting fish, when will it be on the market?

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