| Family: |
Cichlidae (Cichlids), subfamily: Geophaginae |
| Max. size: |
10.45 cm SL (male/unsexed) |
| Environment: |
benthopelagic; freshwater |
| Distribution: |
South America: rio Negro and rio Uruguay. |
| Diagnosis: |
Dorsal spines (total): 13-15; Dorsal soft rays (total): 9-11; Anal spines: 3-3; Anal soft rays: 8-10. This species is distinguished from its congeners, except G. gymnogenysgymnogenys by its more elongate body (body depth 34.9-38.3% SL, mean = 36.7 vs. 38.6-44.2 % SL, mean = 40.6 in gymnogenys specimens larger than 6.5 cm SL), and by the continuous iridescent olivaceous coloration of males (vs. clearly demarcated iridescent blue spots on the center of each scale) (Ref. 118066). |
| Biology: |
|
| IUCN Red List Status: |
Least Concern (LC); Date assessed: 14 April 2023 Ref. (130435)
|
| Threat to humans: |
harmless |
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