General information |
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| Hypostomus ancistroides (Ihering, 1911) | ||
| Common name | Cascudo bugio | |
| Synonyms |
Ophiocephalus studeri Volz, 1903 |
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| IUCN Red List status (2014) | Not Reported |
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| Habitat | Freshwater |
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| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Siluriformes; Loricariidae. |
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| Geographical distribution | Brazil |
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| Occurrence | Native: Brazil |
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| Importance | Food |
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| Remarks | Nil |
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Karyological information |
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| Geographical area of study | Dourados, Maringá and Ximbaúva streams of municipalities of Mandaguari, Maringá and Ourizona, Paraná State, Brazil. | |
| Source of chromosomes | - |
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| Number of specimens with sex | 13 (9 male, 5 female). |
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| Diploid chromosome number | 68 |
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| Karyotype formula | 14m+12sm+8st+24a (Dourados), 16m+12sm+18st+22a (Maringá), 16m+12sm+18st+22a (Ximbaúva). |
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| Fundamental arm number | 56, 57, 52 resp. |
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| Chromosome length | <= 5 μm |
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| Sex chromosome | - |
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| Chromosome staining/banding/FISH | Multiple NORs found but differing in the type of chromosome pairs. Ag-NOR observed in terminal portion of p-arms of pair 9 and one chromosome of pair 10 (Dourados population). Ag-NOR found in terminal regions of p-arms of chromosome pairs 11 and 15 and only on single chromosome of pair 5 (Maringá population). Three NOR signals found on terminal regions of short arms of only single chromosomes to pairs 3 (metacentric), 5 and 9 (submetacentric) (Ximbaúva population). |
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| Reference(s) |
Endo KS, Martinez ERM, Zawadzki CH, Paiva LRS, Júlio Júnior HF (2012). Karyotype description of possible new species of the Hypostomus ancistroides complex (Teleostei: Loricariidae) and other Hypostominae. Acta Sci Biol Sci, 34(2): 181–189. |
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