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Biotoecus opercularis (Steindachner, 1875) |
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photo by
Bornstein, A. |
| Family: | Cichlidae (Cichlids), subfamily: Geophaginae | |||
| Max. size: | 10 cm TL (male/unsexed) | |||
| Environment: | benthopelagic; freshwater | |||
| Distribution: | South America: Amazon River basin, in the Branco River, the middle and lower Negro River, Urubu River, Lake Saracá, Parintins, Lake Carauaçu, lower Trombetas River. | |||
| Diagnosis: | ||||
| Biology: | Inhabits rivers (Ref. 12251). | |||
| IUCN Red List Status: | Least Concern (LC); Date assessed: 07 November 2018 Ref. (130435) | |||
| Threat to humans: | harmless | |||