Abstract
A new species, Batrochoglanis castaneus, is described from the Aripuanã River basin, Brazil. It differs from congeners, except B. raninus and B. transmontanus, by the dark brown color of the body and a dark brown stripe on the caudal fin. The new species differs from B. raninus by the longer maxillary barbel, longer prepelvic length, greater prepectoral length, smaller anal-fin base length, and smaller head depth. The new species differs from B. transmontanus by the longer caudal-fin dorsal lobe, presence of a hyaline spot or stripe on pelvic, dorsal, and anal fins, longer maxillary barbel, longer pectoral-fin, and dorsal-fin spines, greater eye diameter, smaller head depth, and larger mouth width. A metapterygoid anteriorly bifurcated and the lateral line reaching the adipose fin present in the new species are interpreted as synapomorphies of Batrochoglanis. On the other hand, the distribution of pore and neuromasts of the laterosensory system of the head seems to be very conservative in the family. The new species is known only from the Aripuanã River basin, reinforcing its characteristics as an area of endemism for fishes in the Amazon basin.
References
Andrade, M.C., Jégu, M. & Giarrizzo, T. (2016) A new large species of Myloplus (Characiformes, Serrasalmidae) from the Rio Madeira basin, Brazil. ZooKeys, 571, 153–167.
https://doi.org/10.3897/zookeys.571.5983
Arratia, G. (2003a) Catfish head skeleton - an overview. In: Arratia, G., Kapoor, B.G., Chardon, M. & Diogo, R. (Eds.), Catfishes. Science Publishers, Inc, Enfield, pp. 3–46.
Arratia, G. (2003b) The siluriform postcranial skeleton - an overview, In: Arratia, G., Kapoor, B. G., Chardon, M. & Diogo, R. (Eds.), Catfishes. Science Publishers, Inc, Enfield, pp. 121–157.
Arratia, G. & Huaquin, L. (1995) Morphology of the lateral line system and of the skin of diplomystid and certain primitive loricarioid catfishes and systematic and ecological considerations. Bonner Zoologische Monographien, 36, 1–109.
Benine, R.C. (2002) Moenkhausia levidorsa, a new species from Rio Aripuanã, Amazon Basin, Brazil (Characiformes: Characidae). Ichthyological Exploration of Freshwaters, 13, 289–294.
Birindelli, J.L.O. (2014) Phylogenetic relationships of the South American Doradoidea (Ostariophysi: Siluriformes). Neotropical Ichthyology, 12, 451–564.
https://doi.org/10.1590/1982-0224-20120027
Britski, H.A. (1976) Sobre uma nova espécie Leporinus da Amazônia. Acta Amazonica, 6 (Supplement), 87–89.
https://doi.org/10.1590/1809-43921976064s087
Britski, H.A. & Akama, A. (2011) New species of Trachycorystes Bleeker, with comments on other species of the genus (Ostariophysi: Siluriformes: Auchenipteridae). Neotropical Ichthyology, 9, 273–279.
https://doi.org/10.1590/S1679-62252011000200004
Deprá, G.C., Kullander, S.O., Pavanelli, C.S. & Graça, W.J. da (2014) A new colorful species of Geophagus (Teleostei: Cichlidae), endemic to the rio Aripuanã in the Amazon basin of Brazil. Neotropical Ichthyology, 12, 737–746.
https://doi.org/10.1590/1982-0224-20140038
Dingerkus, G. & Uhler, L. (1977) Enzyme clearing alcian blue stained whole vertebrates for demonstration of cartilage. Stain Technology, 52, 229–232.
https://doi.org/10.3109/10520297709116780
Diogo, R., Chardon, M. & Vandewalle, P. (2004) Osteology and myology of the cephalic region and pectoral girdle of Batrochoglanis raninus, with a discussion on the synapomorphies and phylogenetic relationships of the Pseudopimelodinae and Pimelodidae (Teleostei: Siluriformes). Animal Biology, 54, 261–280.
https://doi.org/10.1163/1570756042484728
Dutra, G.M., Wosiacki, W.B. & de Pinna, M.C.C. (2012) Trichomycterus anhanga, a new species of miniature catfish related to T. hasemani and T. johnsoni (Siluriformes: Trichomycteridae) from the Amazon basin, Brazil. Neotropical Ichthyology, 10, 225–231.
https://doi.org/10.1590/S1679-62252012000200001
Eschmeyer, W.N. & Fong, J.D. (2019) Species by family/subfamily in the Catalog of fishes. Electronic version. California Academy of Sciences, San Francisco, California. Available from: http://researcharchive.calacademy.org/research/ ichthyology/catalog/SpeciesByFamily.asp (accessed 24 May 2019)
Esguícero, A.L.H. & Castro, R.M.C. (2017) Taxonomic revision of the genus Aphyodite, with description of two new species (Teleostei: Characidae). Copeia, 105, 753–764.
https://doi.org/10.1643/CI-16-481
Garavello, J.C. (1988) Three new species of Parotocinclus Eigenmann & Eigenmann, 1889 with comments on their geographical distribution (Pisces, Loricariidae). Naturalia, 13, 117–128.
Garavello, J.C. & Santos, G.M. dos (1981) Duas espécies novas do gênero Leporinus Spix, 1829 da bacia do rio Aripuanã, Estado do Mato Grosso (Pisces, Anostomidae). Resumos do III Encontro de Zoologia do Nordeste, 13, 188.
Garavello, J.C. & Santos, G.M. dos (1992) Leporinus trimaculatus, a new species from Amazonia, Brazil, and redescription of the sympatric Leporinus aripuanaensis (Pisces, Characiformes, Anostomidae). Bulletin Zoölogisch Museum, Universiteit van Amsterdam, 13, 109–117.
Géry, J. & Junk, W.J. (1977) Inpaichthys kerri n. g. n. sp., um novo peixe caracídeo do alto rio Aripuanã, Mato Grosso, Brasil. Acta Amazonica, 7, 417–422.
https://doi.org/10.1590/1809-43921977073417
Goulding, M., Barthem, R. & Ferreira, E. (2003) The Smithsonian Atlas of the Amazon. Smithsonian Books, Washington, D.C., 253 pp.
Hales, J. & Petry, P. (2015) Madeira Brazilian shield, Freshwater ecoregions of the world, WWF and Nature Conservancy. Available from: http://www.feow.org (accessed 24 May 2019)
Hammer, O., Harper, D.A.T. & Ryan, P.D. (2001) PAST: Paleontological Statistics software package for education and data analysis. Palaeontologia Electronica, 4, 1–9.
Jégu, M., Morais, L.T. de & Santos, G.M. dos (1992) Redescription des types d’Utiaritichthys sennaebragai Miranda Ribeiro, 1937 et description d’une nouvelle espèce du bassin amazonien, U. longidorsalis(Characiformes, Serrasalmidae). Cybium, 16, 105–120.
Kullander, S.O. (1990) Crenicichla hemera (Teleostei: Cichlidae), a new cichlid species from the Rio Aripuanã drainage, Mato Grosso, Brazil. Ichthyological Exploration of Freshwaters, 1, 213–218.
Kullander, S.O. (1995) Three new cichlid species from southern Amazonia: Aequidens gerciliae, A. epae and A. michaeli. Ichthyological Exploration of Freshwaters, 6, 149–170.
Lucena, Z.M.S. de & Malabarba, L.R. (2010) Descrição de nove espécies novas de Phenacogaster (Ostariophysi: Characiformes: Characidae) e comentários sobre as demais espécies do gênero. Zoologia (Sociedade Brasileira de Zoologia), 27, 263–304.
https://doi.org/10.1590/S1984-46702010000200014
Lundberg, J.G. & Baskin, J.N. (1969) The caudal skeleton of the catfishes, order Siluriformes. American Museum Novitates, 2398, 1–49.
Lundberg, J.G., Bornbusch, A.H. & Mago-Leccia, F. (1991) Gladioglanis conquistador n. sp. from Ecuador with diagnoses of the subfamilies Rhamdiinae Bleeker and Pseudopimelodinae n. subf. (Siluriformes: Pimelodidae). Copeia, 1991, 190–209.
https://doi.org/10.2307/1446263
Netto-Ferreira, A.L., Zanata, A.M., Birindelli, J.L.O. & Sousa, L.M. de (2009) Two new species of Jupiaba (Characiformes: Characidae) from the rio Tapajós and rio Madeira drainages, Brazil, with an identification key to the species of the genus. Zootaxa, 2262 (1), 53–68.
https://doi.org/10.11646/zootaxa.2262.1.3
Nijssen, H. & Isbrücker, I.J.H. (1976) A new callichthyid catfish, Corydoras gracilis, from Brazil. Tropical Fish Hobbyist, 25, 90–98.
Ohara, W.M., Abrahão, V.P. & Espíndola, V.C. (2017) Hyphessobrycon platyodus (Teleostei: Characiformes), a new species from the Rio Madeira basin, Brazil, with comments on how multicuspid teeth relate to feeding habits in Characidae. Journal of Fish Biology, 91, 835–850.
https://doi.org/10.1111/jfb.13383
Ohara, W.M., Lima, F.C.T. & Barros, B.S. (2017) Hyphessobrycon petricolus, a new species of tetra (Characiformes: Characidae) from the rio Madeira basin, Mato Grosso, Brazil. Zootaxa, 4221 (2), 242–250.
https://doi.org/10.11646/zootaxa.4221.2.8
Oliveira, A.S., Rapp Py-Daniel, L.H. & Zawadzki, C.H. (2017) A new species of Aphanotorulus (Siluriformes: Loricariidae) from the rio Aripuanã basin, Brazil. Neotropical Ichthyology, 15, 1–10.
https://doi.org/10.1590/1982-0224-20160034
Ortega-Lara, A. & Lehmann-A, P. (2006) Cruciglanis, a new genus of pseudopimelodid catfish (Ostariophysi, Siluriformes) with description of a new species from the Colombian Pacific coast. Neotropical Ichthyology, 4, 147–56.
https://doi.org/10.1590/S1679-62252006000200002
Pastana, M.N.L. & Ohara, W.M. (2016) A new species of Hyphessobrycon Durbin (Characiformes: Characidae) from rio Aripuanã, rio Madeira basin, Brazil. Zootaxa, 4161 (3), 386–398.
https://doi.org/10.11646/zootaxa.4161.3.6
Ploeg, A. (1991) Revision of the South American cichlid genus Crenicichla Heckel, 1840, with description of fifteen new species and consideration on species groups, phylogeny and biogeography (Pisces, Perciformes, Cichlidae). PhD Dissertation, Academisch proefschrift, Universiteit van Amsterdam, Amsterdam, 153 pp.
Ribeiro, F.R.V., Pedroza, W.S. & Rapp Py-Daniel, L.H. (2011) A new species of Nemuroglanis (Siluriformes: Heptapteridae) from the rio Guariba, rio Madeira basin, Brazil. Zootaxa, 2799 (1), 41–48.
https://doi.org/10.11646/zootaxa.2799.1.4
Rocha, M.S., Oliveira, R.R.de & Rapp Py-Daniel, L.H. (2008) Scolopax baskini: a new spiny dwarf catfish from rio Aripuanã, Amazonas, Brazil (Loricarioidei: Scoloplacidae). Neotropical Ichthyology, 6, 323–328.
https://doi.org/10.1590/S1679-62252008000300005
Rocha, M.S., de Oliveira, R.R. & Rapp Py-Daniel, L.H. (2008) A new species of Gladioglanis Ferraris & Mago-Leccia from rio Aripuanã, Amazonas, Brazil (Siluriformes: Heptapteridae). Neotropical Ichthyology, 6, 433–438.
https://doi.org/10.1590/S1679-62252008000300017
Ruiz, W.B.G. & Shibatta, O.A. (2010) A new species of Microglanis (Siluriformes, Pseudopimelodidae) from lower rio Tocantins basin, Pará, Brazil, with description of superficial neuromasts and pores of lateral line system. Zootaxa, 2632 (1), 53–66.
https://doi.org/10.11646/zootaxa.2632.1.3
Sabaj, M.H. (2016) Standard symbolic codes for institutional resource collections in herpetology and ichthyology: an online reference. Version 6.5 (16 August 2016). Electronic publication. American Society of Ichthyologists and Herpetologists, Washington, D.C. Available from: http://www.asih.org/ (accessed 6 June 2019)
Sarmento-Soares, L.M., Martins-Pinheiro, R.F., Aranda, A.T. & Chamon, C.C. (2006) Microglanis pataxo, a new catfish from southern Bahia coastal rivers, northeastern Brazil (Siluriformes: Pseudopimelodidae). Neotropical Ichthyology, 4, 157–166.
https://doi.org/10.1590/S1679-62252006000200003
Shibatta, O.A. (1998) Sistemática e evolução da família Pseudopimelodidae (Ostariophysi, Siluriformes), com a revisão taxonômica do gênero Pseudopimelodus. Unpublished Thesis. Universidade Federal de São Carlos, São Carlos, 357 pp.
Shibatta, O.A. (2003) Phylogeny and classification of ‘Pimelodidae’. In: Arratia, G., Kapoor, B. G., Chardon, M. & Diogo, R. (Eds.), Catfishes. Science Publishers, Inc, Enfield, pp. 387–400.
Shibatta, O.A. & Pavanelli, C.S. (2005) Description of a new Batrochoglanis species (Siluriformes, Pseudopi melodidae) from the Rio Paraguay basin, State of Mato Grosso, Brazil. Zootaxa, 1092 (1), 21–30.
https://doi.org/10.11646/zootaxa.1092.1.2
Shibatta, O.A. & Vari, R.P. (2017) A new genus of Neotropical rheophilic catfishes, with four new species (Teleostei: Siluriformes: Pseudopimelodidae). Neotropical Ichthyology, 15, e160132.
https://doi.org/10.1590/1982-0224-20160132
Slobodian, V. & Bockmann, F.A. (2013) A new Brachyrhamdia (Siluriformes: Heptapteridae) from Rio Japurá basin, Brazil, with comments on its phylogenetic affinities, biogeography and mimicry in the genus. Zootaxa, 3717 (1), 1–22.
https://doi.org/10.11646/zootaxa.3717.1.1
Tencatt, L.F.C. & Ohara, W.M. (2016) Two new species of Corydoras Lacépède, 1803 (Siluriformes: Callichthyidae) from the rio Madeira basin, Brazil. Neotropical Ichthyology, 14, e150063, 139–154.
https://doi.org/10.1590/1982-0224-20150063
Tencatt, L.F.C. & Ohara, W.M. (2016) A new long-snouted species of Corydoras Lacépède, 1803 (Siluriformes: Callichthyidae) from the rio Madeira basin. Zootaxa, 4144 (3), 430–442.
https://doi.org/10.11646/zootaxa.4144.3.9
Zanata, A.M. & Ohara, W.M. (2009) Jupiaba citrina, a new species from Rio Aripuanã, Rio Madeira basin, Amazonas and Mato Grosso States, Brazil (Characiformes: Characidae). Neotropical Ichthyology, 7, 513–518.
https://doi.org/10.1590/S1679-62252009000400001
Zawadzki, C.H. & Carvalho, P.H. (2014) A new species of the Hypostomus cochliodon group (Siluriformes: Loricariidae) from the Rio Aripuanã basin in Brazil. Neotropical Ichthyology, 12, 43–51.