Editorial Type:
Article Category: Research Article
 | 
Online Publication Date: 01 Feb 2006

New Species of Chaetostoma (Siluriformes: Loricariidae) from Central Peru

Page Range: 60 – 67
DOI: 10.1643/0045-8511(2006)006[0060:NSOCSL]2.0.CO;2
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Abstract

A new species of rubbernose armored catfish, collected by the Catherwood Foundation Peruvian Amazon Expedition from the upper Huallaga River (650 m elevation) in central Peru, is described herein. This new species differs from all other described Chaetostoma species in having a conspicuously banded dorsal fin and by the combination of the following characters: presence of fleshy excrescence on posterior tip of supraoccipital, typically nine branched dorsal-fin rays, and evertible cheek plates with two to four hypertrophied odontodes.

Una nueva especie de carachama nariz de goma colectada por la Catherwood Foundation Peruvian Amazon Expedition, en el alto Río Huallaga (650 m elevación) en Perú central es descrita. Esta nueva especie difiere de todas las otras especies descritas de Chaetostoma por tener una aleta dorsal conspicuamente bandeada, y por la combinación de los siguientes caracteres: presencia de una excresencia carnosa en el extremo posterior del supraoccipital; generalmente nueve radios dorsales ramificados; y placas evertibles de la mejilla con dos a cuatro odontodes hipertrofiados.

Copyright: The American Society of Ichthyologists and Herpetologists
<bold>Figure 1</bold>
Figure 1

Chaetostoma changae, holotype, ANSP 179125, 63.67 mm SL, male


<bold>Figure 2</bold>
Figure 2

Infraorbital series, left side of Chaetostoma changae, paratype, ANSP 138950, 50.7 mm SL.F = frontal, IO0–IO6 = infraorbitals, SP = sphenotic, SPO = suprapreopercle, nr = nostril, or = orbit. Dorsal view, anterior top. Scale = 1 mm


<bold>Figure 3</bold>
Figure 3

Type localities of Chaetostoma species described from Peruvian material.(1) Chaetostoma sericeum; (2) C. branickii; (3) C. mollinasum; (4) C. taczanowskii; (5) C. changae; (6) C. marmorescens; (7) C. lineopunctatum; (8) C. loborhynchos; (9) C. marcapatae


Contributor Notes

Department of Biological Sciences, Texas Tech University, Lubbock, Texas 79409-3131. norma.salcedo@ttu.edu

Received: 23 Sept 2003
Accepted: 29 Aug 2005
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