General information |
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| Potamorrhaphis cf. Eigenmanni Miranda Ribeiro, 1915 | ||
| Common name | Peixe-agulha | |
| Valid name | Potamorrhaphis eigenmanni Miranda Ribeiro, 1915 | |
| Synonyms |
Gastropelecus stellatus Kner, 1858 |
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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; Euteleostei; Neoteleostei; Acanthomorpha; Acanthopterygii; Percomorpha; Atherinomorpha; Beloniformes; Belonidae. |
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| Geographical distribution | Brazil; Argentina |
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| Occurrence | Native: Brazil, Argentina |
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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 | River Parana at Posadas, Misiones, Argentina | |
| Source of chromosomes | Kidney |
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| Number of specimens with sex | 08 (04 males; 01 females; 03 undetermined sex) |
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| Diploid chromosome number | 54 |
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| Karyotype formula | 6m/sm+48st/a |
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| Fundamental arm number | Not reported |
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| Chromosome length | Not reported |
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| Sex chromosome | Not reported |
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| 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. |
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| Reference(s) |
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, |
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