| General information |
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Cynolebias nigripinnis (Regan, 1912) |
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| Common name | Blackfin pearlfish |
| Valid name |
Austrolebias nigripinnis (Regan, 1912) |
| Synonyms |
Cynolebias nigripinnis nigripinnis Regan, 1912 |
| IUCN Red List status (2014) |
Not Reported |
| Habitat |
Freshwater |
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Neoteleostei; Acanthomorphata; Ovalentaria; Atherinomorphae; Cyprinodontiformes; Rivulidae. |
| Geographical distribution |
Philippines; Argentina; Uruguay |
| Occurrence |
introduced: Philippines; native: Argentina; native: Uruguay |
| Importance |
Ornamental |
| Karyological information |
| Geographical area of study |
Salto, Artigas, Uruguay |
| Source of chromosomes |
Branchia,kidney,intestine,gonads |
| Number of specimens with sex |
05 (04 males; 01 females) |
| Diploid chromosome number |
48 |
| Karyotype formula |
6m,sm+42st,a (Uruguay), 6m,sm+42st,a (Argentina) |
| Fundamental arm number |
76 (Uruguay), 80 (Argentina) |
| Chromosome length |
Not reported |
| Sex chromosome |
Not detected |
| Chromosome staining/banding/FISH |
C-banding on three chromosome pairs and NORs on three chromosome pairs |
| Reference |
Garcia A, Scvortzoff E, Maspoli MC, Vaz-Ferreira R (1993). Analysis of karyotypic evolution in natural populations of Cynolebias (Pisces: Cyprin |ontiformes, Rivulidae) using banding techniques. Cytologia, 58: 85-94. |
| Cross Link |