| Characidae (Characins; tetras), subfamily: Stevardiinae |
| 4.97 cm SL (male/unsexed) |
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pelagic; freshwater |
| South America: Aguaytia and Pachitea rivers in the Ucayali River basin. |
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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). |
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Least Concern (LC); Date assessed: 21 April 2014 Ref. (130435)
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| harmless |
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