| General information |
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Potamorrhaphis cf. Eigenmanni Miranda Ribeiro, 1915 |
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| Common name | Peixe-agulha |
| Valid name |
Potamorrhaphis eigenmanni Miranda Ribeiro, 1915 |
| Synonyms |
Gastropelecus stellatus Kner, 1858 |
| IUCN Red List status (2014) |
Not Reported |
| Habitat |
Freshwater |
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Euteleostei; Neoteleostei; Acanthomorpha; Acanthopterygii; Percomorpha; Atherinomorpha; Beloniformes; Belonidae. |
| Geographical distribution |
Brazil; Argentina |
| Occurrence |
native: Brazil; native: Argentina |
| Importance |
Food |
| Karyological information |
| Geographical area of study |
River Parana at Posadas, Misiones, Argentina |
| Source of chromosomes |
Kidney |
| Number of specimens with sex |
08 (04 males; 01 females; 03 undetermined sex) |
| Diploid chromosome number |
54 |
| Karyotype formula |
6m/sm+48st/a |
| Fundamental arm number |
Not reported |
| Chromosome length |
Not reported |
| Sex chromosome |
Not reported |
| Chromosome staining/banding/FISH |
C-bands were present on the telomeric and pericentromeric regions in the majority of the chromosomes except one acrocentric chromosome in female which was totally heterochromatic; NORs were present on one chromosome pair that was confirmed by hybridisation of 18S rDNA probe. |
| Reference |
Pastori MC, Cano J, Bertollo C, Fenocchio AS (1998). Cytogenetic study of two species of needlefish (Belonidae) from Argentina. Italian Journal of Zoology, 65:S1, 57-60, |
| Cross Link |