| Family: |
Characidae (Characins; tetras), subfamily: Stevardiinae |
| Max. size: |
4.62 cm SL (male/unsexed) |
| Environment: |
pelagic; freshwater |
| Distribution: |
South America: Aguaytia and Pachitea rivers in the Ucayali River basin. |
| Diagnosis: |
Dorsal soft rays (total): 10-10; Anal soft rays: 14-20. The possession of a dark, vertically elongate humeral bar in mid-sized and larger specimens or the presence of a diffuse patch of chromatophores in that region in the smaller individuals examined distinguishes Attonitus irisae from Attonitus bounites and Attonitus ephimeros. Dorsal fin with 2 unbranched and 8 branched ray. Anal fin with 3 unbranched and 14-17, most commonly 15-16, branched rays (Ref 53400). |
| Biology: |
|
| IUCN Red List Status: |
Least Concern (LC); Date assessed: 21 April 2014 Ref. (130435)
|
| Threat to humans: |
harmless |
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