New tiny armoured catfish species found in Brazil


Editor's Picks
Practical Fishkeeping Readers' Poll 2023
Fishkeeping News Post
Readers' Poll 2023
07 August 2023
Fishkeeping News Post
Countdown for Finest Fest 2023
20 April 2023
Fishkeeping News Post
Pacific Garbage Patch becomes its own ecosystem
20 April 2023
Fishkeeping News Post
Newly described snails may already be extinct
20 April 2023

A new species of tiny armoured catfish caught from the Rio Paraíba do Sul basin, Brazil has been described in the open access journal Zookeys.

Pareiorhina hyptiorhachis measures a mere 3-3.5 cm in length and inhabits moderate to fast-flowing streams in the waters of the Rio Pomba and one of its tributaries, the Ribeirão Fernandes, with a substrate of rocks and sand and margins covered by aquatic vegetation.

Like others in the genus it is only found in Brazil.  

Pareiorhina hyptiorhachis differs from other species in the genus by sporting a conspicuous postdorsal ridge, simple teeth, a completely naked abdomen, a greater head width with a more round dorsal profile and a greater suborbital depth.

The species name hyptiorhachis references the conspicuous postdorsal ridge found in this species, and is from the Greek, hyptios = supine, lying on the back, and rhachis = ridge, midrib.

You can read the full description in the open access paper: Silva GSC, Roxo FF, Oliveira C (2013) Pareiorhina hyptiorhachis, a new catfish species from Rio Paraíba do Sul basin, southeastern Brazil (Siluriformes, Loricariidae). ZooKeys 315: 65. doi: 10.3897/zookeys.315.5307

Why not take out a subscription to Practical Fishkeeping magazine? See our latest subscription offer.

Don't forget that PFK is now available to download on the iPad.