Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 4175 No. 3: 14 Oct. 2016
Type: Article
Published: 2016-10-14
DOI: 10.11646/zootaxa.4175.3.7
Page range: 281–291
Abstract views: 109
PDF downloaded: 4

New species of Curculionichthys (Siluriformes: Loricariidae) from the eastern Guiana Shield

Departamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista, R Prof. Dr. Antonio C. W. Zanin, s/n, Rubião Jr, 18618–689, Botucatu SP, Brazil
Departamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista, R Prof. Dr. Antonio C. W. Zanin, s/n, Rubião Jr, 18618–689, Botucatu SP, Brazil
Departamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista, R Prof. Dr. Antonio C. W. Zanin, s/n, Rubião Jr, 18618–689, Botucatu SP, Brazil Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington DC, USA
Departamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista, R Prof. Dr. Antonio C. W. Zanin, s/n, Rubião Jr, 18618–689, Botucatu SP, Brazil
Pisces Amazon basin Cascudinhos Freshwater fishes Otothyrini taxonomy

Abstract

We describe a new species of Curculionichthys from northern Brazil. The new species is known from the rio Cassiporé, an Atlantic coastal river and an unnamed affluent of the rio Jari, left tributary of the Amazon river. It can be distinguished from congeners by (1) the irregular concentration of chromatophores that cover the anal-fin origin and adjacent region, and distal portions of the first unbranched anal-fin ray, (2) lack of dark-brown spots scattered over the body, (3) lack of contrasting dark spots over the anterodorsal region of the body, (4) presence of papillae randomly distributed across the lower lip, (5) small, inconspicuous odontodes that form rows over the head and trunk, (6) anterior profile of the head pointed, (7) higher number of premaxillary and dentary teeth, (8) lack of an unpaired platelet on the dorsal portion of the caudal peduncle, (9) lower number of vertebrae, and (10) higher number of lateral abdomen plates. A discussion on the morphological variation of diagnostic features within Curculionichthys is also provided.

 

References

  1. Carvalho, T.P. & Reis, R.E. (2009) Four new species of Hisonotus (Siluriformes: Loricariidae) from the upper rio Uruguay, southeastern South America, with a review of the genus in the rio Uruguay basin. Zootaxa, 2113, 1–40.

    Fricke, R. & Eschmeyer, W.N. (2015) Catalog of fishes. Available from: http://researcharchive.calacademy.org/research/ichthyology/catalog/collections.asp (accessed 15 December 2015)

    International Commission on Zoological Nomenclature (1999) International code of zoological nomenclature. 4th Edition. The International Trust for Zoological Nomenclature, London, 306 pp.

    Le Bail, P. -Y., Keith, P. & Planquette, P. (2000) Atlas des poissons d’eau douce de Guyane. vol. 2, part 2: Siluriformes. Patrimoines naturels Muséum National d’Histoire Naturelle, Paris, 307 pp.

    Lujan, N.K., Armbruster, J.W., Lovejoy, N.R. & López-Fernandez, H. (2015) Multilocus molecular phylogeny of the suckermouth armored catfishes (Siluriformes : Loricariidae) with a focus on subfamily Hypostominae. Molecular Phylogenetics and Evolution, 82, 269–288.
    http://dx.doi.org/10.1016/j.ympev.2014.08.020

    Melo, B.F., Benine, R.C., Britzke, R., Gama, C.S. & Oliveira, C. (2016) An inventory of coastal freshwater fishes from Amapá, highlighting the occurrence of eight new records for Brazil. Zookeys, 606, 127–140.
    http://dx.doi.org/10.3897/zookeys.606.9297

    Roxo, F.F., Albert, J.S., Silva, G.S.C., Zawadzki, C.H., Foresti, F. & Oliveira, C. (2014a) Molecular phylogeny and biogeographic history of the armored Neotropical catfish subfamilies Hypoptopomatinae, Neoplecostominae and Otothyrinae (Siluriformes: Loricariidae). PLoS ONE, 9 (8), e105564.
    http://dx.doi.org/10.1371/journal.pone.0105564

    Roxo, F.F., Zawadzki, C.H. & Troy, W.P. (2014b) Description of two new species of Hisonotus Eigenmann & Eigenmann, 1889 (Ostariophysi, Loricariidae) from the rio Paraná-Paraguay basin, Brazil. Zookeys, 395, 57–78.
    http://dx.doi.org/10.3897/zookeys.395.6910

    Roxo, F.F., Silva, G.S., Ochoa, L.E. & Oliveira, C. (2015). Description of a new genus and three new species of Otothyrinae (Siluriformes, Loricariidae). Zookeys, (534), 103.
    http://dx.doi.org/10.3897/zookeys.534.6169

    Schaefer, S.A. (1997) The Neotropical cascudinhos: Systematics and biogeography of the Otocinclus catfishes (Siluriformes: Loricariidae). Proceedings of the Academy of Natural Sciences of Philadelphia, 148, 1–120.

    Schaefer, S.A. (1998) Conflict and resolution: impact of new taxa on phylogenetic studies of the Neotropical cascudinhos (Siluroidei: Loricariidae). In: Malabarba, L.R., Reis, R.E., Vari, R.P., Lucena, Z.M.S. & Lucena, C.A.S. (Eds.), Phylogeny and classification of Neotropical fishes. Edipucrs, Porto Alegre, pp. 375–400.

    Silva, G.S., Roxo, F.F., Orrego, L.E. & Oliveira, C. (2016) Description of a new catfish genus (Siluriformes, Loricariidae) from the Tocantins River basin in central Brazil, with comments on the historical zoogeography of the new taxon. ZooKeys, 598, 129–157.
    http://dx.doi.org/10.3897/zookeys.598.7400

    Taylor, W.R. & Van Dyke, G.C. (1985) Revised procedures for staining and clearing small fishes and other vertebrates for bone and cartilage study. Cybium, 9 (2), 107–119.