| Hypopomidae (Bluntnose knifefishes) |
| 11.9 cm TL (male/unsexed); 11.2 cm TL (female) |
|
benthopelagic; freshwater |
| South America: middle and upper rio São Francisco drainage in Brazil. |
|
Brachyhypopomus menezesi is distinguished from other species of the genus Brachyhypopomus by the following combination of characters: presence of accessory electric organ over the opercular region (vs. absence in all congeners except B. bombilla and B. regani); dorsal surface with large dark blotches against a lighter background (vs. dorsal surface speckled with small brown chromatophores on a pale background in B. bombilla); and caudal filament length 24.7-33.3% of length to end of anal fin (vs. 11.1-17.9% in B. regain) (Ref. 116763). |
| Occurs in small rivers, streams, and lakes based on geographical coordinates and labels accompanying the examined museum specimens. Stomach contents of a single specimen consisted of aquatic insect larvae, mostly Chironomidae (Ref. 116763). |
|
Least Concern (LC); Date assessed: 10 November 2020 Ref. (130435)
|
| harmless |
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