| Family: |
Characidae (Characins; tetras), subfamily: Stevardiinae |
| Max. size: |
4.97 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 lack of a dark humeral mark distinguishes Attonitus ephimeros from Attonitus irisae which has a distinct, vertically-elongate humeral bar. The presence on the body wall above the anal-fin base of a band of dark pigmentation which is distinctly wider over the second and third branched anal-fin rays and has a rounded anterior margin in Attonitus ephimeros separates that species from Attonitus bounites which lacks such pigmentation.
Description: Dorsal-fin with 2 unbranched and 8 branched rays. Anal-fin with 3 unbranched and 14-17, typically 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 |
Source and more info: www.fishbase.org. For personal, classroom, and other internal use only. Not for publication.