| Family: |
Characidae (Characins; tetras), subfamily: Stethaprioninae |
| Max. size: |
6.8 cm SL (male/unsexed) |
| Environment: |
benthopelagic; freshwater |
| Distribution: |
South America: known only from the Rio Tiquié, upper Rio Negro basin in Brazil. |
| Diagnosis: |
Dorsal soft rays (total): 11-11; Anal soft rays: 24-28; Vertebrae: 35-35. Distinguished from its congeners by the presence of an unpigmented, horizontally-oriented, roughly oval area on the proximal portion of the caudal-fin lobes, bordered posteriorly by dark pigmentation (Ref. 54762).
Description: Dorsal-fin rays ii,9; anal-fin rays iv or v,20, 21, 22, 23 or 24; pectoral-fin rays i,11, 12 or 13; pelvic-fin rays i,7 (Ref. 54762). |
| Biology: |
Collected exclusively by seining beaches in pools immediately downstream of waterfalls or rapids, but not in the rapids themselves (Ref. 54762). Apparently avoids small forest streams (Ref. 54762). Feeds on filamentous algae, fragments of Podostemaceae, terrestrial and aquatic Hemipterans, adults and larvae of Trichopterans and odonate nymphs (Ref. 54762). |
| IUCN Red List Status: |
Least Concern (LC); Date assessed: 04 March 2021 Ref. (130435)
|
| Threat to humans: |
harmless |
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