| Family: |
Characidae (Characins; tetras), subfamily: Stethaprioninae |
| Max. size: |
4.43 cm SL (male/unsexed) |
| Environment: |
benthopelagic; freshwater |
| Distribution: |
South America: Bermejo River basin in Argentina. |
| Diagnosis: |
Distinguished by a combination of the following characters: somewhat rhomboidal body; 24-29 branched anal fin rays; 1-4 maxillary teeth; long pectoral fins (23.2-26.6% SL) always reaching one third of pelvic fin rays; long pelvic fins (17.6-22.0 % SL) always surpassing anal fin origin; anal fin base long (32.3-36.7% SL); 26-27 gillrakers on first branchial arch; lateral band extremely narrow; one large vertically elongated humeral spot and a second one very faint; relatively shallow caudal peduncle (10.0-11.4% SL); fifth tooth of inner premaxillary series very small and scarcely posterior to main series; origin of anal fin below dorsal fin (Ref. 55782). |
| Biology: |
|
| IUCN Red List Status: |
Endangered (EN); Date assessed: 14 December 2020 (B1ab(iii)) Ref. (130435)
|
| Threat to humans: |
harmless |
Source and more info: www.fishbase.org. For personal, classroom, and other internal use only. Not for publication.