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Hypostomus gymnorhynchus (Norman, 1926) |
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photo by
Sabaj Pérez, M.H. |
| Family: | Loricariidae (Armored catfishes), subfamily: Hypostominae | |||
| Max. size: | 26.6 cm SL (male/unsexed); max.weight: 253.0 g | |||
| Environment: | demersal; freshwater | |||
| Distribution: | South America: Guianas. | |||
| Diagnosis: | ||||
| Biology: | Rarely attains a length of 20 cm (Ref. 27188). Rheophilic species occurring in very sunny rapids with strong current and rocky bottom (Ref. 35381); inhabiting largest part of freshwaters, from headwaters to upstream of the lower falls, with rocky substrate consisting of boulders, stones, gravels, and sand; the exposed wet rocks are also often covered by the Podostemaceae Mourera fluviatilis and Apinagia richardiana (Ref. 90186). | |||
| IUCN Red List Status: | Least Concern (LC); Date assessed: 14 January 2021 Ref. (130435) | |||
| Threat to humans: | harmless | |||