| Family: |
Gymnotidae (Naked-back knifefishes), subfamily: Gymnotinae |
| Max. size: |
|
| Environment: |
demersal; freshwater |
| Distribution: |
South America: Rio Magdalena basin in Colombia. |
| Diagnosis: |
Distinguished from all congeners by the following combination of characters: caudal end of the anal fin with a clear patch; dorso-posterior portion of the preopercle with two laterosensory canal pores ( from the preopercular-mandibular series); progressive loss of alternating dark and light pigments bands with the size; head length, 10.2-11.2% total length; anal fin pterygiophores with many scales (9-10); few pored lateral-line scales to first ramus (47-48); total number of pored lateral-line scales 84 (n=1); relatively large eye, orbital diameter 8.5-9.0% HL) (Ref. 54466). |
| Biology: |
|
| IUCN Red List Status: |
Endangered (EN); Date assessed: 10 October 2014 (B1ab(iii)) Ref. (130435)
|
| Threat to humans: |
harmless |
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