论文信息 - Astyanax pirapuan: a new characid species from the upper Rio Paraguay system, Mato Grosso, Central Brazil (Characiformes, Characidae)

Astyanax pirapuan: a new characid species from the upper Rio Paraguay system, Mato Grosso, Central Brazil (Characiformes, Characidae)

A new characid fish is described herein from tributaries of the Rio Arica-Mirim, Rio Cuiaba basin, Chapada dos Guimaraes, Mato Grosso State, Brazil. Astyanax pirapuan better conforms to the A. scabripinnis species complex and it can be distinguished from other species of this complex by a combination of characters, including 8–9 gill rakers on the upper limb of first branchial arch, 0–1 tooth on the maxillary, 17 to 21 branched anal-fin rays, 35–37 perforated lateral line scales and two humeral spots.

V. Tagliacollo | Gabriel S. C. Silva | R. C. Benine | R. Britzke

[1] C. A. D. Lucena,et al. Redescription of Astyanax obscurus (Hensel, 1870) and A. laticeps (Cope, 1894) (Teleostei: Characidae): two valid freshwater species originally described from rivers of Southern Brazil , 2010 .

[2] J. M. Mirande. Phylogeny of the family Characidae (Teleostei: Characiformes): from characters to taxonomy , 2010 .

[3] J. M. Mirande,et al. Weighted parsimony phylogeny of the family Characidae (Teleostei: Characiformes) , 2009, Cladistics : the international journal of the Willi Hennig Society.

[4] C. A. D. Lucena,et al. Two new species of Astyanax (Ostariophysi: Characiformes: Characidae) from eastern Brazil, with a synopsis of the Astyanax scabripinnis species complex , 2006 .

[5] R. Reis,et al. Genera Incertae sedis in Characidae , 2003 .

[6] S. Weitzman. Perspectives about the phylogeny and classification of the Characidae (Teleostei : Characiformes) , 1998 .

[7] O. M. Filho,et al. Astyanax scabripinnis (pisces, characidae) : a species complex , 1991 .

[8] W. Taylor,et al. Revised procedures for staining and clearing small fishes and other vertebrates for bone and cartilage study , 1985 .

[9] W. Fink,et al. The so-called cheirodontin fishes of Central America with descriptions of two new species (Pisces: Characidae) , 1974 .

[10] D. Rosen,et al. Origin of the characid fish genus Bramocharax and a description of a second, more primitive, species in Guatemala. American Museum novitates ; no. 2500 , 1972 .