Abstract
A new species of the banjo catfish genus Amaralia is described from the Paraná-Paraguay River Basin in central-western Brazil, Paraguay and northern Argentina. Amaralia oviraptor is distinguished from its single and allopatric congener, Amaralia hypsiura, by the greater number of dorsal-fin rays (3 vs. 2); by the absence of lateral contact between middle and posterior nuchal plates (vs. middle and posterior nuchal plates contacting each other laterally); and by a longer cleithral process (17.4–19.5 % of SL, mean 18.2 % vs. 14.0–17.2 % of SL, mean=15.5 %). Comments on the peculiar oophagic diet of Amaralia and an extended diagnosis of the genus are provided.
References
Almirón, A. Casciotta, J., Ciotek, L. & Giorgis, P. (2008) Guía de los peces del parque nacional Pre-Delta. Administración de Parques Nacionales, Buenos Aires, 300 pp.
Arce, M.H., Reis, R.E., Geneva, A.J. & Sabaj Pérez, M.H. (2013) Molecular phylogeny of thorny catfishes (Siluriformes: Doradidae). Molecular Phylogenetics and Evolution, 67, 560–577.
http://dx.doi.org/10.1016/j.ympev.2013.02.021Arias, J.D., Demonte, D., Miquelarena, A.M., Protogino, L.C. & López, H.L. (2013) Lista de peces de la provincial de Entre Ríos. Probiota, FCNyM, UNLP, Serie Técnica y Didáctica, 22, 1–18.
Bleeker, P. (1858) De visschen van den Indischen Archipel. Beschreven en toegelicht. Siluri. Acta Societatis Regiae Scientiarum Indo-Neêrladicae 4, 1–370.
Bleeker, P. (1862) Atlas ichthyologique des Indes orientales néêrlandaises : publié sous les auspices du gouvernement colonial néêrlandais. Amsterdam, Frédéric Muller, editeur, 2, 112 pp.
Britski, H.A., Silimon, K.S. & Lopes, B.S. (1999) Peixes do Pantanal: Manual de Identificação. Embrapa, Brasília. 184 pp.
Britski, H.A., Silimon, K.S. & Lopes, B.S. (2007) Peixes do Pantanal: Manual de Identificação. Second edition. Embrapa, Brasília. 227 pp.
Cardoso, A.R. (2008) Filogenia da família Aspredinidae Adams, 1854 e revisão taxonômica de Bunocephalinae Eigenmann & Eigenmann, 1888 (Teleostei: Siluriformes: Aspredinidae). PUCRS, Porto Alegre, 259 pp.
Cardoso, A.R. (2010) Bunocephalus erondinae, a new species of banjo catfish from southern Brazil (Siluriformes: Aspredinidae). Neotropical Ichthyology, 8, 607–613.
http://dx.doi.org/10.1590/S1679-62252010000300005Carvalho, T.P., Cardoso, A.R., Friel, J.P. & Reis, R.E. (2015) Two new species of the banjo catfish Bunocephalus Kner (Siluriformes: Aspredinidae) from the upper rio São Francisco basin, Brazil. Neotropical Ichthyology, 13, 1, 499–512.
http://dx.doi.org/10.1590/1982-0224-20140152Castello, H.P., Ehrlich, M.D., Wais, I.R. & Puig. A. (1978) Adiciones a la fauna de los Peces de los Ríos Paraná Medio y Bermejo. Revista del Museo Argentino de Ciencias Naturales ‘‘Bernadino Rivadavia’’, 12, 119–135.
Chakrabarty, P., Warren M., Page, L.M. & Baldwin, C.C. (2013) GenSeq: An updated nomenclature and ranking for genetic sequences from type and non-type sources. ZooKeys, 346, 29–14.
http://dx.doi.org/10.3897/zookeys.346.5753Chernoff, B. & Willink, P.W. (2000) Ecological and geographical structure in assemblages of freshwater fishes in the Pantanal, Mato Grosso do Sul, Brasil. In: Willink, P.W., Chernoff, B., Alonso, L.E., Montambault, J.R. & Lourival, R. (Eds), A Biological Assessment of the Aquatic Ecosystems of the Pantanal, Mato Grosso do Sul, Brasil. Conservation International, Washington D.C., 80–97 pp.
Eschmeyer, W.N. (Ed.) (2015) Genera, Species, References. Electronic version. Available from: http://research.calacademy.org/research/ichthyology/catalog/fishcatmain.asp (accessed 9 Oct 2015)
Eschmeyer, W.N. & Fong, J.D. (2014) Species by family/subfamily. Electronic version. Available from: http://research.calacademy.org/research/ichthyology/catalog/SpeciesByFamily.asp. (accessed 9 October 2015)
Ferraris, C.J. Jr. (1991) On the type species of Bunocephalus (Siluriformes: Aspredinidae). Copeia, 1991, 1, 224–225.
http://dx.doi.org/10.2307/1446266Ferraris, C.J. Jr. (2007) Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa, 1418, 1–628.
Ferriz, R.A. & Gómez, S.E. (2002) Primer registro de Amaralia hypsiura (Pisces, Aspredinidae) para la baja Cuenca del Río y aportes a su morfometría. Historia Natural (Segunda Serie), 1, 1, 1–3.
Fowler, H.W. (1954) Os peixes de água doce do Brasil. Vol. 2. Arquivos Zoologia do Estado de São Paulo, 9, 1–400.
Friel, J.P. (1994) A phylogenetic study of the Neotropical banjo catfishes (Teleostei: Siluriformes: Aspredinidae). Duke University, Durham, 256 pp.
Friel, J.P. (1995) Acanthobunocephalus nicoi, a new genus and species of miniature banjo-catfish from the upper Orinoco and Casiquiare Rivers, Venezuela (Silutiformes: Aspredinidae). Ichthyological Exploration of Freshwaters, 6, 1, 89–95.
Friel, J.P. (2003) Family Aspredinidae. In: R.E. Reis, Kullander, S.O. & Ferraris, C.J., Jr. (Eds.), Check list of the freshwater fishes of South and Central America. Edipucrs, Porto Alegre, pp. 261–267.
Friel, J.P. (2008) Pseudobunocephalus, a new genus of banjo catfish with the description of a new species from the Orinoco River system of Colombia and Venezuela (Siluriformes: Aspredinidae). Neotropical Ichthyology, 6, 293–300.
http://dx.doi.org/10.1590/S1679-62252008000300001da Graça, W. Jr. & Pavanelli, C.S. (2007) Peixes da Planície de Inundação do Alto Rio Paraná e Áreas Adjacentes. EDUEM, Maringá, 241 pp.
Herbert, P.D.N., Cywinska, A., Ball, S. & Dewaard, J.R. (2003) Biological identifications through DNA barcodes. Proceedings of Royal Society of London Biology, 270, 313–321.
http://dx.doi.org/10.1098/rspb.2002.2218Kner, R. (1855) Ichthyologische Beiträge. I. Über die gattungen Aspredo und chaca C. V. aus der famile der welse (Siluroidei). Sitzungsberichte der Mathematich-Naturwisswinschaftlichen Classe der Kaiserlichen Akademie der Wissenschaften, 8, 92–105.
Langeani, F., Castro, R.M.C., Oyakawa, O.T., Shibatta, O.A., Pavanelli, C.S. & Casatti, L. (2007) Diversidade da ictiofauna do alto rio Paraná: composição atual e perspectivas futuras. Biota Neotropica, 7, 1–17.
http://dx.doi.org/10.1590/S1676-06032007000300020Liotta J., Wagner, M. & Giacosa, B. (2001) Adiciones a la fauna de peces del Delta del Río Paraná. Tercera Jornada sobre Conservación de la Fauna Íctica en el Río Uruguay, 1–8.
López, H.L., Miquelarena, A.M. & Menni, R.C. (2003) Lista comentada de los peces continentales de la Argentina. Probiota, FCNyM, UNLP, Serie Técnica y Didáctica, 5, 1–87.
Lundberg, J G. & J.N. Baskin. (1969) The caudal skeleton of the catfishes, Order Siluriformes. American Museum Novitates, 2398, 1–49.
Mees, G.F. (1988) The genera of the subfamily Bunocephalinae (Pisces, Nematognathi, Aspredinidae). Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen, 91, 85–102.
Mees, G.F. (1989) Notes on the genus Dysichthys, subfamily Bunocephalinae, family Aspredinidae (Pisces, Nematognathi). Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen, 92, 189–250.
Mees, G.F. (1996) The species of the genera Bunocephalus Kner, 1855 and Bunocephalichthys Bleeker, 1858 (Pisces, Aspredinidae, Bunocephalinae). Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen, 99, 225–228.
Palumbi S.R. (1996) Nucleic acids II: the polymerase chain reaction. In: Hillis, D. M., Moritz, C., Mable, B.K. (Eds.), Molecular Systematics. Sinauer Associates, Sunderland, pp. 205–247.
de Pinna, M.C. (1996) A phylogenetic analysis of the Asian catfish families Sisoridae, Akysidae, and Amblycipitidae, with hypothesis on the relationships of the Neotropical Aspredinidae (Teleostei, Ostariophysi). Fieldiana Zoology, 84, 1–83.
de Pinna, M.C. & Ng, H.N. (2004) The second ural centrum in Siluriformes and its implication for the monophyly of superfamily Sisoroidea (Teleostei, Ostariophysi). American Museum Novitates, 3437, 1–23.
http://dx.doi.org/10.1206/0003-0082(2004)437<0001:TSUCIS>2.0.CO;2Polaz, C.N.M., Melo, B.F., Britzke, R., Resende, E.K., Machado, F.A., Lima, J.A.F. & Petrere, M. Jr. (2014) Fishes from the Parque Nacional do Pantanal Matogrossense, upper Paraguai River basin, Brazil. Check List, 10, 4, 122–130.
http://dx.doi.org/10.15560/10.1.122Roberts, T.R. (2015) Mimicry of a bean seed by the Amazonian aspredinid catfish Amaralia hypsiura, (Kner 1855), with notes on vegetative camouflage by fishes. Aqua, International Journal of Ichthyology, 21, 3–15.
Sabaj Pérez, M.H. (2009) Photographic atlas of fishes of Guiana Shield; In: Vari, R.P., Ferraris, C.J., Radosavljevic, A. & Funk,V.A. (Ed.), Check list of the freshwater fishes of the Guiana Shield. Bulletin of the Biological Society of Washington no.17, Washington D.C., pp. 53–59.
Sabaj Pérez, M.H. (Ed.) (2014) Standard symbolic codes for institutional resource collections in herpetology and ichthyology: an Online Reference (Version 5.0), American Society of Ichthyologists and Herpetologists, Washington, DC. Available from: http://www.asih.org/sites/default/files/documents/resources/symbolic_codes_for_collections_v5.0_sabajperez_2014.pdf (Accessed 8 Mar. 2016)
Taylor, W.R. & Van Dyke, G.C. (1985) Revised procedures for staining and clearing small fishes and other vertebrates for bone and cartilage. Cybium, 9, 107–119.
Thomaz, A.T., Malabarba, L.R. & Bonatto, S.L. (2010) The phylogenetic placement of Hollandichthys Eigenmann 1909 (Teleostei: Characidae) and related genera. Molecular Phylogenetics and Evolution, 57, 3, 1347–1352.
http://dx.doi.org/10.1016/j.ympev.2010.10.006Vanscoy, T., Lundberg J.G. & Luckenbill, K.R. (2015) Bony ornamentation of the catfish pectoral-fin spine: comparative and developmental anatomy, with an example of fin-spine diversity using the Tribe Brachyplatystomini (Siluriformes, Pimelodidae). Proceedings of the Academy of Natural Sciences of Philadelphia, 164, 1, 177–212.
http://dx.doi.org/10.1635/053.164.0107Veríssimo, S., Pavanelli, C.S., Britski, H.A. & Moreira, M.M.M. (2005). Fish, Manso reservoir region of influence Rio Paraguai basin, Mato Grosso State, Brazil. Check List, 1, 1–9.
http://dx.doi.org/10.15560/1.1.1Walbaum, J.J. (1792) Petri Artedi Sueci Genera piscium. In: quibus systema totum ichthyologiae proponitur cum classibus, ordinibus, generum characteribus, specierum differentiis, observationibus plurimis. Redactis speciebus 242 ad genera 52. Ichthyologiae, pars iii. 723 pp., 3 pl.