| Family: |
Characidae (Characins; tetras), subfamily: Stevardiinae |
| Max. size: |
6.8 cm SL (male/unsexed); max.weight: 6.7 g |
| Environment: |
benthopelagic; freshwater; depth range 0 - 2 m |
| Distribution: |
South America: Rio Iguazú basin, Argentina. |
| Diagnosis: |
Differs from all congeneric species by the combination of the following characters: premaxilla with 4-6 teeth on the outer row, teeth aligned and tricuspidate or tetracuspidate, maxillary teeth 3-4 and usually pentacuspidate, 18-21 branched anal-fin rays, lateral line with 36-38 perforated scales, a short peduncle (11.6-13.3% SL), a ventrally elongated black humeral spot, a very faint second humeral spot and a narrow black lateral band (Ref. 52417). |
| Biology: |
Collection sites have rapids with clear flowing water, pools and some areas of slow current. Bottom substrate includes mud, sand and mostly stones. Water depth ranges from 0.40-2m and temperate of the water near surface during summer is about 26° C (Ref. 52417). |
| IUCN Red List Status: |
Least Concern (LC); Date assessed: 04 March 2021 Ref. (130435)
|
| Threat to humans: |
harmless |
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