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Pseudancistrus nigrescens Eigenmann, 1912 |
| Family: | Loricariidae (Armored catfishes), subfamily: Hypostominae | |||
| Max. size: | 18.2 cm TL (male/unsexed) | |||
| Environment: | demersal; freshwater | |||
| Distribution: | South America: Upper Potaro River basin, Guyana. | |||
| Diagnosis: | ||||
| Biology: | ||||
| IUCN Red List Status: | Least Concern (LC); Date assessed: 16 October 2020 Ref. (130435) | |||
| Threat to humans: | harmless | |||