Journal Article

Two new species of miniature psammophilic sarcoglanidine catfishes of the genus Microcambeva from the Atlantic Forest of eastern Brazil (Siluriformes: Trichomycteridae)

Costa, W.J.E.M., Katz, A.M., Mattos, J.L.O. and Rangel-Pereira, F.S.

Record Number:
4448
Year:
2019
Journal:
Journal of Natural History
Pages:
1837-1851
Volume:
53
Abstract:
ABSTRACT Trichomycterid catfishes of the Sarcoglanidinae, which includes small-sized species living in sandy river substratum, have been poorly represented in collections. We herein describe two new species of the sarcoglanidine genus Microcambeva, endemic to river basins draining the Brazilian Atlantic Forest. The presence of a distal widening on the posterior process of the autopalatine and a rudimentary anterior autopalatine ossification shared by the two new species, M. mucuriensis sp. nov. from the Rio Mucuri and M. jucuensis sp. nov. from the Rio Jucu basin, and M. draco from the Rio Jucuruçu basin indicates that these three species are more closely related to each other than to other congeners. Microcambeva mucuriensis seems to be more closely related to M. draco than to M. jucuensis in that the first two species share the presence of a well-developed anterior process of the interopercle. The two new species are also distinguished from congeners by the number of opercular odontodes and premaxillary teeth, and the relative size of the sesamoid supraorbital. Available evidence taken from this study and previous reports indicates that different sarcoglanidine lineages have adapted to live in distinct riverine habitats, with species of Atlantic Forest Microcambeva inhabiting clearwater streams and Amazonian sarcoglanidines found in tea-stained acidic-water streams.
Times Cited:
3
Related Records:
Costa, W.J.E.M. and Bockmann, F.A. (1994)
A new genus and species of Sarcoglanidinae (Siluriformes: Trichomycteridae) from southeastern Brazil, with a re-examination of subfamilial phylogeny
Costa, W.J.E.M., Lima S.M.Q. and Bizerril, C.R.S.F. (2004)
Microcambeva ribeirae sp. n. (Teleostei: Siluriformes: Trichomycteridae): a new sarcoglanidine catfish from the Rio Ribeira do Iguape basin, southeastern Brazil
Costa, W.J.E.M., Lima S.M.Q. and Bizerril, C.R.S.F. (2004)
Microcambeva ribeirae sp. n. (Teleostei: Siluriformes: Trichomycteridae): a new sarcoglanidine catfish from the Rio Ribeira do Iguape basin, southeastern Brazil
Costa, W.J.E.M., Lima S.M.Q. and Bizerril, C.R.S.F. (2004)
Microcambeva ribeirae sp. n. (Teleostei: Siluriformes: Trichomycteridae): a new sarcoglanidine catfish from the Rio Ribeira do Iguape basin, southeastern Brazil
Bockmann, F.A. and Lima, F.C.T. (2008)
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Adriaens, D., Baskin, J.N. and Coppens, H. (2010)
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Adriaens, D., Baskin, J.N. and Coppens, H. (2010)
Evolutionary morphology of trichomycterid catfishes: about hanging on and digging in
Mattos, J.L.O. and Lima, S.M.Q. (2010)
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Ochoa, L.E., Roxo, F.F., DoNascimiento, C., Sabaj, M.H., Datovo, A., Alfaro, M. and Oliveira, C. (2017)
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Costa, W.J.E.M., Katz, A.M., Mattos, J.L.O. and Rangel-Pereira, F.S. (2019)
Two new species of miniature psammophilic sarcoglanidine catfishes of the genus Microcambeva from the Atlantic Forest of eastern Brazil (Siluriformes: Trichomycteridae)
Costa, W.J.E.M., Katz, A.M., Mattos, J.L.O. and Rangel-Pereira, F.S. (2019)
Two new species of miniature psammophilic sarcoglanidine catfishes of the genus Microcambeva from the Atlantic Forest of eastern Brazil (Siluriformes: Trichomycteridae)
Costa, W.J.E.M., Katz, A.M., Mattos, J.L.O. and Rangel-Pereira, F.S. (2019)
Two new species of miniature psammophilic sarcoglanidine catfishes of the genus Microcambeva from the Atlantic Forest of eastern Brazil (Siluriformes: Trichomycteridae)
Datovo, A, Canto, A.L.C., Di Dario, F., Zuanon, J.A.S., Ferrer dos Santos, J., Villa-Verde, L., Rapp Py-Daniel, L., Mehanna, M.N., Rocha, M.S., de Pinna, M.C.C., Ota, R.P. and Wosiacki, W.B. (2019)
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Sarmento-Soares, L.M., Pessali, T.C., Reis, V.J.C., Medeiros, L.S., Lima, S.M.Q., Silva, J.P., Martins- Pinheiro, R.F. and de Pinna, M.C.C. (2019)
Distribution, morphological notes and conservation status of the psammophilous Microcambeva catfishes (Siluriformes: Trichomycteridae).
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Distribution, morphological notes and conservation status of the psammophilous Microcambeva catfishes (Siluriformes: Trichomycteridae).
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