| General information |
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Astyanax bimaculatus (Linnaeus, 1758) |
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| Common name | Twospot astyanax, Machadinha |
| Synonyms |
- |
| IUCN Red List status (2014) |
Not Reported |
| Habitat |
Freshwater |
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Characiformes; Characidae. |
| Geographical distribution |
Brazil; Argentina; Colombia; Peru; Venezuela; Ecuador; Uruguay; Guyana; Suriname; French Guiana; Panama; Trinidad and Tobago |
| Occurrence |
native: Brazil; native: Argentina; native: Colombia; native: Peru; native: Venezuela; native: Ecuador; questionable: Uruguay; native: Guyana; native: Suriname; native: French Guiana; native: Panama; native: Trinidad and Tobago |
| Remarks |
- |
| Karyological information |
| Geographical area of study |
Venezuela. |
| Source of chromosomes |
Kidney tissue. |
| Number of specimens with sex |
- |
| Diploid chromosome number |
50 |
| Karyotype formula |
4m+6sm+28st+12a |
| Fundamental arm number |
88 |
| Chromosome length |
- |
| Sex chromosome |
- |
| Chromosome staining/banding/FISH |
- |
| Reference |
Nirchio M, Rossi AR, Foresti F, Oliveira C (2014). Chromosome evolution in fishes: a new challenging proposal from Neotropical species. Neotropical Ichthyology, 12(4): 761-770. |
| Cross Link |